HA Repair GuideTop-Load Washer Top Load Washer - 1/37 - HA Repair Guide [ Top Load Washer] Vibration • Vibration & Noise • Noise Leakage • Water Leakage Improper • Water Supply Operation • No Power Power & Error • Error mode • Test mode / Diagnosis - 2/37 - #1. Symptom : Vibration & Noise 1-1. Schematic Diagram of Repair Chassis Project Basic Model Type Top-Load All All Tub With Pump / Tact Button Check-1 Cause Check-2 1.Spin-basket defect 2.Damper defect Spin-Vibration 3. Unstable installation place Spin friction abrasion Concentricity Check (4mm↓) Curing part burst Spin-Nut loosening check Tub moving inclination check Grease/Parts check Low-temp installation environment Floor moisture environment Low-temp environment installation Dryer Pair installation narrow Rear hose interference Floor shaking 4.Unstable installation of product Leg level installation check Non-Slip Pad not attached Moving Pad/Pan-Drain Tip Code 1-1 1-2 #1 Block #2 SpinBasket Spin-Nut +Clutch #3 Moistureproof cloth LowMoistureTemp Damper proof Environm cloth ent Install Environm n place ent 1-3 Installatio 1-3 Level Non-Slip installatio Sheet n Install 1.Pump-Drain defect Pump-Case damage Fixing bolt loosening Foreign substance in Pump Impeller damage 1-4 PumpCase Foreign Impeller Substanc e 2.Clutch,Motor defect Spin-mode PBA Check Abnormal noise diagnosis Motor friction Check 1-5 Main-PBA (IPM) Hall-S/S Motor 3.MEMS Sensor defect Error Mode Check -8E1 Voltage Check Loose Terminal Check Product Noise 4.Customer misunderstan ding NDF 5. Product inherent feature Customer use moistureproof cloth Washing a little amount Spin-only course used Not using the Net only for bedding Resonance RPM frequency shaking Shaking at the beginning Sound of Tub water (Add salt water to Balancer) - 3/37 - 4-11 Main-PBA MEMS Harness Not using Moisture- Washing forproof of Little 1-6 specialcloth Amount use net Resonance 1-6 Phenomen Balancer on If the spot of Spin-Nut fastening is inclined to one side. Mats. replace the Spin-Basket & TubCover.Check if the max RPM is reached. check Step #3. it is defect.Turn the Spin-Basket based on 9 o’ clock direction and measure the deviation.If it shakes more than 5mm.Replace the Spin-Basket & Spin-Nut. . .4/37 - ※ Press and hold Spin+Soil and push the power button => Test Mode .Check if moisture-proof cloth is used and explain not to use it. .Tip 1-1.Check the opening of Wrapper bottom.Check the customer usage condition and explain to the customer how to. Step 2 ① Spin Mode Check . clothing .Run Spin Test with Unbalance 400g placed on one side.Check the friction phenomenon at the top. Spin-Basket Abnormality Check Point Check the condition of Spin-Basket / usage environment. ② Spin–Nut Loosening Check . ※ Explain to the customer after SVC. ※ 400g – about 3 towels OR Jig for this purpose only . ① Check the customer usage condition. (800rpm ±10%) ② Unbalance Test Check . : Water–Proof Sheet. the Spin-Basket shakes. Step 1 ① Spin-Basket Exterior Damage Check . . ※ If exterior damage or friction phenomenon occurs as in the photo.When Shaken. => Spin-Basket concentricity defect & Spin-Nut connection defect . it is defect. ③ If noise or operation does not seem normal.Turn knob and select SPN to start. .Check for abnormal noise & Set moving. Step 3 ① Spin-Basket Concentricity Check . . : Sponge inside is damaged or omitted.Check for the loosening of Damper inside. . . check Step #2. ② Check if Damper is damaged.5/37 - . explain to the customer that it is inappropriate for the product installation. .Check the grease on Damper. Step 1 ① Check if Tub moves up and down.Tip 1-2. . : Water–Proof Sheet.Replace the Damper. Step 2 ① Check damper parts & the condition of grease application. ※ Explain to the customer after SVC.Check the usage condition of customer and provide guidance. ② Check if there is noise.If Damper does not return or press when checking abnormal noise & up-and-down movement. clothing . .If the surrounding temperature is below zero at the time of installation. ① Check the customer usage condition. Mats.Check if moisture-proof cloth is used and explain not to use it. Replace the Damper. . Damper Abnormality Check Point Check the condition of Damper operation. Maintain Damper smooth. . Attach Non-Slip Pad to both front legs on the floor. it is in the right place. . .6/37 - .Prevent friction between water supply/drain hose and product or wall.For the left and right of product. (During water supply. Step 1 ① Check the frictional relationship with the surroundings when installing. => It is recommended to contact the installer and request for re-installation such that it does not influence on the vibration.Install a pair of dryers attached. Case#2 – Shaking due to old laundry room floor(lumber). Install Place & Unstable Install Abnormality Check Point Check the installation place & the condition of unstable installation. ② Noise from Set on slippery floor (Tile. Tub is inclined to one side due to tension of Drainhose. If frame is shaking during spinning mode. . => It is recommended to contact the installer and request for re-installation such that it does not influence on the vibration.For the front and rear of product. Case#1 – Levelness defect due to floor damage. ※ When checking the left-and-right level of the product.Tip 1-3. ③ Floor is shaking.Install the front legs of product to be located on the Non-Slip Pad. . Step 2 ① Check the condition of levelness of product installation. adjust Leg to be attached to the floor. check the level at the top of Lid-T/C. . Moisture) . which makes the product move. ② Friction occurs due to unstable shaping of water supply/drain hose . interference noise is generated. check the level on the side of product. ③ Inappropriate material of leg for the floor Case#1 Pan Drain Friction Noise Case#2 Use paper for floor protection on the Leg bottom.) ※ For level installation. When pump drain is operating.Open debris filter and check there are foreign materials such as coins. Step 3 ① Pump Drain . Pump-Drain Abnormality Check Point Check the condition of Pump-Drain. . it may cause noise during drain cycle.If pump drain is defective. it vibrates a little. So. ② If there is noise or operation is not smooth.Check pump drain impeller is broken. . replace pump drain. In this case.Tip 1-4. it may cause mechanical friction noise. ② Small foreign materials . pins etc. it can make a little bit of noise but it is not a problem => Replace the Pump-Drain. Step 1 ① Mechanical Friction Noise . If drain parts such as drain hose are near other parts. small foreign materials could drain with water because there is no filter.When water is draining through drain hose. Step 2 ① Foreign materials in Pump Drain . check Step #3.7/37 - . 8/37 - ① ② ③ . ① ② ③ ④ ② If coil value open defect. disassemble the Rotor and check for abrasion.Separate the 9Pin housing to measure the Female terminal.Press and hold Spin+Soil.Tip 1-5.Disassemble the Rotor.8±2Ω ※ Resistance changes due to influence by Magnetic of Rotor. ② When there is abnormal noise or Rotor constraint. check the frictional noise of washing motor while Motor-L / Motor-R is rotating. Step 3 ① Check for Clutch noise during spinning mode. while pushing the power button. . check the terminal pin and replace the stator. (800rpm ±10%) ② If noise is generated from Clutch. . Step 2 ① Check the operation of washing motor.Motor Coil Measurement ※ 3 phases of Coil R<->S<->T : 9. => Replace deformed Clutch Lever and damaged Gear. .Check if max RPM is reached. . Step 1 ① Check for the breakage of wire of washing motor.Turn the power on and start the normal course. . . . replace the Rotor.Check for the abrasion of Gear of Clutch-Boss assembly. . . Clutch & Motor Abnormality Check Point Check the condition of Clutch & Motor operation. .When weight-sensing is operating. =>Test Mode .Adjust knob and select SPN to start.Separate the Cover-Panel from product. Tip 1-6.9/37 - Salt-Water . Case#1 – Inclination occurs due to washing small amount or excessive amount.Explain that the sound comes from salt water which is the center of gravity in the Balancer and that it is normal. clothing ② Unbalance vibration due to laundry inclined to one side. Explanation of NDF & Product Characteristics Check Point Explain the NDF and the product characteristics. Case#2 – Inclination occurs due to using spin-only course. ※ If there is no water sound in the Balancer when checking the Tub.Check the customer usage condition. ※ The resonance phenomenon occurs in the rpm rising section at the beginning for spinning. Thus. it is defect. .Check if he/she uses moisture-proof cloth and tell them not to use it. Case#3 – When washing bedding.In the resonant frequency. => Explain that it is one of the characteristics created while designing the product. which is normal. => Check the customer usage condition and explain how to use it correctly. : Water–Proof Sheet. . bedding net is not used. Mats. Step 2 ① Resonance phenomenon occurs in the rising section during spinning mode. . Step 1 ① Explain to the customer. replace the Spin-Basket. Tub moves. . .Hudson Resonant Frequency : 200~450rpm section . ② The sound of water is generated when shaking tub. Water-V/V Leakage Water Supply 3. Install & NDF Installation/ NDF Waste water backward-flow Continuous drainage Drops a little .10/37 - Pulsator .Tub-related leakage Check-2 Tool over-connection loose Packing omitted Y-Joint Seal water leakage Cold-water-only installation Wall-attached installation Foreign substance enters pipe End of water supply valve damaged Body damage Bad packing assembly Freeze in the winter Nozzle spray angle Bleach overflow Water pressure / Inclined installation Too much laundry input Water level hose damage Aquajet overflow Tub Crack Damage by coin Tip Code Block #1 #2 #3 2-1 Water Supply Hose Water Supply Valve Y-Joint 2-2 Water Supply Valve Water Supply Hose Piping Install Condition 2-3 -slope Nozzle -water pressure -filter 2-4 Tub Coin 2-5 PumpCase DrainHose 2-6 Drain Hose Clamp Washing Amount 5.Pump leakage Pump-Drain hose Pump-Case Drain hose 1. Detergent Drawer Leakage 4. Water Supply Hose Connection 2. Schematic Diagram of Repair Chassis Project Basic Model Type Top-Load All All Tub With Pump / Tact Button Check-1 Cause 1.#2. Symptom : Water Leakage 2-1. => It is recommended that the installer re-install it such that it does not influence on water leakage and vibration. check Step#3. .It is recommended that the gap between the product rear and the wall be maintained at 6in(152㎜). Step 1 ① Over-connection of water supply hose using a tool . . .The screw-head of water supply valve is loose due to abrasion. . ※ Explain to the customer after SVC. ② Check for defect in installed sub-material unit.㎠. Step 3 ① Hose is bent during installation. . .Water leaks due to loose caulking.Error occurs during hot water course. . ② Water leaks due to backward-flow when installing cold-water-only.Water leakage due to backward-flow phenomenon of internal Drawer.Check for water leakage of Y-Joint Unit.Leakage occurs in the scratched part of the end of water supply valve. Step 2 ① Water Supply Hose Unit Check . . : Apply more Seal Taping to the water-supply-related parts.Check the water pressure: Shall not exceed max of 8kgf.11/37 - .Check if internal Packing-Seal is omitted or worn out.Tip 2-1. and thus explain to the customer to install both hot and cold water. Water-Hose & Connection Abnormality Check Point Check the condition of Water-Hose. . ③ If water leaks due to installation condition outside the product.Water leaks due to hose bending and friction caused by the installation of product rear close to the wall. ※ Explain to the customer after SVC. Step 2 ① Check the exterior of water supply valve unit. . ② Check for the clogging and clean the Filter.Water leaks due to bad Packing connection.Clean it regularly to prevent accumulation of foreign substance. Water-V/V & Connection Abnormality Check Point Check the Water-V/V & Connection. .Separate the Filter with a tool. check Step #3.Tip 2-2. ② Check for the water leakage part of water supply valve. Explain to the customer to re-install the product such that it is not influenced by cold temperatures .Water leaks due to damaged body of water supply valve.The body of water supply valve is damaged due to cold temperatures. . . . .12/37 - . . Step 3 ① Water Suply Valve Body Damage .Check if the screw-head is worn out due to overconnection of water supply hose using a tool. Step 1 ① Check if the Filter of water supply hose is clogged by foreign substance. .Water leaks due to continuous water supply because foreign substance enters inside.Check for the scratch at the end of water supply valve in the process of installation. ③ If noise or operation is not normal.Prevent the water leakage caused by valve. ③ Detergent Leakage-Point . Detergent & Bleach Abnormality Check Point Check the condition of Detergent & Bleach. .It is recommended that laundry net be used for the laundry which tends to move to the top.If too much laundry is input. .Waterjet scatters to Burr of the plane inside Nozzle.Check if powder is mistakenly used in drawer for Liquid detergent. : Clean the Filter of water supply valve regularly. OK Leakage-Point ② Bleach Leakage-Point . -> Replace.13/37 - Section A-A’ .Apply Bond to Section A-A’. it is vulnerable to Detergent leakage. . . it scatters during water supply or circulation(cycle) pumping. ② Laundry input . ③ Check the level installation condition of product.㎠ or over.Tip 2-3. : Shall maintain the water pressure at 1kgf. .Adjust it if the angle of assembly is warped. ① Check the water pressure environment to maintain the appropriate pressure. Step 2 ① It scatters outside according to the angle of Nozzle.If the product inclines to the rear side. Step 3 ※ Detergent & Bleach backflows out of Tub. etc.Replace the Case-Bleach(U). . such as bedding. .Crack caused by unmelted injection at the Tub bottom.Check if internal packing is omitted. ② Check the customer usage condition and explain to the customer how to use it properly. .Damage usually occurs at the point 100mm below the tub during high-speed spinning mode due to coin and foreign substance in the laundry.Water leaks due to Cap trap welding. . ② Check for the water leakage part of tub. .Replace the screw fixing Tub-Cover top with more improved sample.Assemble the Clamp. .Explain how to remove coin and foreign substance in the laundry.Tip 2-4.14/37 - . Step 2 ① When aquajet is working. . Step 3 ① Tub below 100mm point damage . . Tub Abnormality Check Point Check the condition of Tub & Aquajet. ③ Re-assemble the water level hose and apply Bond. . check for the overflow. Step 1 ① Check for the water leakage phenomenon of water level hose.Water level hose inserting part damage ② Water level hose separation or assembly omitted. If water droplet forms. 2012) ② Replace the damaged Pump-Case and fix wire. . . ③ Check for the water leakage of Pin-Hole and binding part of drain hose.Insert the taping into hook of wire.Tip 2-5. ② Check for the water leakage of Pump.Replace the Assy of Pump-Case. Pump Connection Abnormality Check Point Check the condition of Pump & Hose. . . Step 2 ① Check for the water leakage of DrainHose(o).Structure of Pump-Case assembly at the Tub bottom (Portion produced before Dec 10. Step 1 ① The structure of Pump-Case Tub bottom connection is damaged or separated. .Replace the Drain-Hose(o).Check the water leakage phenomenon of Pump.15/37 - .Bind it with Cable Tie. . check for crack or tearing. . . since the wire separates and breaks due to continuous vibration. ③ As in photo. explain how to use it. ② Drain hose is installed to deep in the stand pipe in a basement. ② If drain hose is installed after loosening the fixing part. re-install it without disassembling the drain hose fixing part.Tip 2-6. place the drain hose so that drain hose may not go back to the upper part of U-trap. Thus. ③ As in the warning label. Step 1 ① Waste water flows back into the washer. . then water drains continuously. ② Explain to the customer that the water remaining in the detergent drawer drops due to impact when disassembling it. Install & NDF Connection Abnormality Check Point Check the condition of Install & NDF. waste water discharged from first floor flows back into the product.16/37 - Re-install the drain hose which flows back to the U-Trap of pipe. Then. Step 2 ① Water drains during washing mode. Step 3 ① If water drop falls little by little even after washing mode ends. . Weight Weight sensing sensing defect reduce Motor unit constraint Load 3.Water level sensing defect 1. Schematic Diagram of Repair Chassis Project Basic Model Type Top-Load All All Tub With Pump / Tact Button Check-1 Power Supply Water Supply Fail Check-2 Tip Code Power-Cord breakage Fuse breakage EMI-Filter breakage Main-Harness defect 3-1 Cause 1.#3.No power 1. Symptom : Water Supply & Drain 3-1. Water Supply Install close to wall Water valve check Fail Cold/Hot water switched Clean foreign substance in pipe filter Valve coil resistance PBA applied voltage 2.17/37 - Block Rinse PBA PBA Bleach Foreign Pump Wire brea substance damage kage clogging . Pump check Drain Fail 3-2 3-3 3-4 #1 #2 #3 PowerEMI-Filter Harness Cord Installatio Valve n Damage Washing Motor Hall Sensor Water level hose Water level sensor 3-5 Detergent Nd Error check Pump-Case damage Pump Wire breakage 3-6 Drain hose clogged with foreign substance . Detergent residue Detergent Drawer Residue Water level hose Punk Water level hose clogged Water level sensor wire breakage Water level frequency check If water remains If detergent remains Gel-type or highlyenriched detergent 1. ☞Maintain the voltage of 120V – If OK. ② Check for the wire breakage defect in EMI-Filter.Check for the contact fail due to reverse insertion of Housing. check Step #3. . ③ Measure the voltages of both ends of the EMIFilter. replace the wire. replace the PBA.Check if the exterior is corroded. .Check if the internal wire is broken.Replace the fuse if it is open . . Step 3 ① Check the AC power supplied to PBA.Terminal deformation . ☞Maintain the voltage of 120V – If OK. . .Measure the power of socket and check if it is rated.18/37 - . . ☞Maintain the voltage of 120V – If NG. ② Check the Power-Cord.Check if the terminal pin is pushed back. replace the wire. Step 1 ① Unit does not come on.Replace it with the rated capacity. . No Power Abnormality Check Point Check the condition of Power Cord/Fuse/EMI-Filter. Step 2 ① Check for an open fuse. ② Blue↔White of CN1: Check if it maintains the voltage of 120V. ☞Maintain the voltage of 120V – If NG.Tip 3-1. .Turn on all the LED lights to measure the power supply of water supply valve.Separate the filter with a tool. .Clean the Filter with a brush.Tip 3-2. while pressing the power button=> Test Mode . . .Push Temp 4 times to work the valve. ② Check the exterior of valve.Crack in the valve body. Water Supply Fail Abnormality Check Point Check the Water-Hose / Water Supply Valve / Install Condition.0㏀ -> If O. .Water supply fails due to hose bending and friction caused by the close-to-wall installation of the product rear.Turn knob to select tS mode.19/37 - .Check if Harness wire is broken.Check if the terminal pin is pushed back. . Step 2 ① Check the condition of water supply valve connection. If NG. ② If the filter is clogged due to pipe problem or water quality problem. ③ Check the resistance of both ends of water supply valve. replace the valve. . Step 1 ① Check if water supply fails due to hose bent during installation. . ☞ Maintain the supplied voltage of valve at 120V. replace the PBA. Step 3 ① Check the power supplied from PBA. ② Check the applied voltage of both ends of the water supply valve.The solenoid does not sit flush on the valve body.L. . ☞ Maintain the coil resistance at 1. .Press and hold Spin+Soil. . 8±2Ω . .20/37 - CN3 1-U 2-V 3W .Constraint occurs during operation because the surrounding iron powder enters due to the magnetism of Rotor-Magnetic. . check the terminal pin.If coil value open defect. Thus.Check of ⓑ-U(BLU) / ⓒ-V(ORG) ☞ The Voltage : approximately 0~1v Pulse ※ Rotor slow turning by manually ※ ⓓ-GND(GRN) – Contact to (-)Black Tester ⓓ ☞ Replace the Main PCB 0↔1v Step 3 ① Check the Wash Motor Supply Voltage of PCB .Pin #1 / #2 / #3 of CN3 = DC 145v (GND CN1 Black) ☞ Replace the PBA . Weight-Sensing Abnormality Check Point Check the condition of Motor weight-sensing. ③ Incorrect weight-sensing due to defect in Hall Sensor characteristics . Step 1 ① Check the water level by sensing weight with empty tub.Explain that either Other course or Soil is recommended because they correct the water level based on the absorption power of load.Separate the Cover-Panel from product. wrong water level is sensed. Other course Step 2 ① Wrong weight-sensing due to washing motor stator defect . .Motor Coil Resistance ☞ 3-phases of Coil U↔V↔W : 9.Separate the 9Pin housing to measure the Female terminal.Other Course or Soil-Level : approx.Check of ⓐ-VCC(RED) ☞ The Voltage : approximately 5. 80mm .Tip 3-3.0V ⓓ ⓐ ⓐ . 100mm Normal course ② Explain to the customer how to use it. . .Normal Course: approx. ① ② ③ ④ ② Incorrect weight-sensing due to the abnormality of Washing motor rotor. Step 1 ① If 1E error occurs in Main PBA. ③ Check if the contact between water level sensor and terminal is incomplete.4kH : If 25. Thus. do not adjust it. replace it.Measure the water level sensor during stand-by with the power on.Tip 3-4. . Water Level Sensing Abnormality Check Point Check the water level sensor & connection condition. .L. ☞ Maintain the coil resistance at 20~24Ω. ③ Measure the frequency of water level sensor during stand-by. -> If O.9kHz or lower. ※ If it is adjusted. .Simultaneously push the Spin+Delay Start buttons for 10 sec. Not Adjust Bolt ※ SVC Note ① Do not adjust the top part of water level sensor. ② Bond is applied to the top part of water level sensor after setting it at the time of factory shipment. ② When the frequency does not rise during water supply.if the water level hose is punctured or separated.02<->66 are displayed by turns. . it is considered as water leakage phenomenon due to Tub damage. . water supply stops. the spinning mode is not activated due to change in Reset frequency. .Turn knob to select Heavy-Duty course.21/37 - . replace it. ② Check if the wire of water level sensor is broken.if the water level hose is clogged by foreign substance or bending. Thus. have it checked. Step 2 ① Check the sensing of water level sensor. ※ How-to-read: 02<->66 => 0266 => 26. .6kHz ☞ Frequency of 26. explain to the customer the caution phrase of detergent manufacturer as to dissolving it in water. Step 3 ※ Explain to the customer after SVC. ② open the Siphon-Cap of detergent drawer and fabric softener drawer and check for Burr which occurs during injection. ③ Case of Burr – see photo of phenomenon Step 2 ① If detergent remains. Detergent Drawer Residue Abnormality Check Point Check the condition of Detergent & Bleach. Step 1 ① If water remains. Thus. .22/37 - .Tip 3-5. regarding detergent characteristics ※ Caution : If Product freezes or thickens. ② the detergent was thickened (viscosity↑) and solidified because it had been used for a long period of time. ※ Guide phrase from the manufacturer. dissolve a capful in a cup of water. ① Explain him/her to limit using high-enriched or geltype detergent. Shake well before use. bind it with Cable Tie. . Step 2 ① The structure of Pump-Case Tub bottom connection is damaged or separated.Tip 3-6.When water is draining through drain hose.Check Voltage at Pin Yellow↔Black : 120vAC ☞ Replace the Main PCB . Step 1 ① Check the pump with drain fail. . 2012) ② Replace the damaged portion of Pump-Case and fix Wire. . Drain Fail Abnormality Check Point Check the condition of Pump & Hose. it can make a little bit of noise but it is not a problem . (Portion produced before Dec 10. small foreign materials could drain with water because there is no filter. .Check pump drain impeller is broken.23/37 - .The structure of Tub bottom Pump-Case assembly.Check Pump Coil at Yellow↔Black : 15. So.Insert the taping into hook of wire. . Thus.5Ω ☞ Replace the Wire or Pump ☞ Step #2 Wire Check ② Small foreign materials .Separation and wire breakage occur due to continuous vibration. ② Water supply valve/PBA power supply check Nd Will not drain ① Check the power of drain pump. IE Sensor fail ① Water Sensor ② Measure the water level frequency during stand-by. and if “d” is displayed.24/37 - Next Page . Service Mode Diagnostic Mode Error Check : Delay Start + Extra Rinse (*WA400WA422) : Delay Start + Aquajet (*WA456) : Push Spin. Fix the Error mode displayed on Control Panel. Symptom : Error Check 4-1. turn knob.#4. OE ① Constant water supply from Water supply valve Water over flow ② Excessive foam from detergent for general use LE ① Water level sensor / Water level Water Leakage hose Punk ② Tub Leakage 3E dC Wash Motor Unbalance IMAGE ① Washing Motor Wire Connection ② PBA IPM output voltage check ① Level installation check ② Check the standard for recommended use of laundry . Schematic Diagram of Repair ※ Error Mode Check 1. 2. ② Clean the filter of drain pump. Display (Image) Error Item (*WA456) How-to Nf No Water Fill ① Water supply hose bent. 25/37 - IMAGE . and if “d” is displayed. DS Door is Open ① Door Open check ② Fabric jamming AE PBA ① Sub PBA Wire Connection Communication E2 Button Pressed ① Tact Button Pressed ② Wire Connection 8E/8E1 MEMS Sensor ① MEMS Wire Connection ② MEMS Voltage Check . ① Sensor Wire Connection ② Measure the resistance of sensor temperature. Symptom : Error Check 4-1. Service Mode Diagnostic Mode Error Check : Delay Start + Extra Rinse (*WA400WA422) : Delay Start + Aquajet (*WA456) : Push Spin.#4. 2. Schematic Diagram of Repair ※ Error Mode Check 1. nf1 Water Hose Connection ① Cold/Hot water supply hoses switched. Fix the Error mode displayed on Control Panel. LO Door Will nor Unlock ① PBA Door-Lock operation check ② Measure the Door-Lock resistance. (* WA400WA422) Display (Image) Error Item How-to tE Water temp. FL Fail to Lock ① PBA Door-Lock operation check ② Measure the Door-Lock resistance. turn knob. ☞ Maintain the coil resistance at 1.26/37 - .Clean the filter with a brush. . .Check if Harness wire is broken.Press and hold Spin+Soil. replace the PBA. If NG. . . nF Error Check Point Check the condition of Water-Hose.Tip 4-1. . -> If O.Separate the Filter with a tool. because the product rear is installed too close to the wall.0㏀. ② Check the voltage applied to both ends of water supply valve.Push Temp to work the valve.L. . .Check if the terminal pin is pushed back. ② Check the exterior of valve. => Test Mode . .Turn All the lights on to work the valve.The top core of water supply valve heaves. .Water supply fails due to hose bending and friction. . Step 2 ① Check the condition of water supply valve connection. ☞ Maintain the valve supply voltage at 120V.Crack on the Body ③ Check the resistance of both ends of water supply valve. replace the valve. . ② The filter is clogged due to problems with pipe and water quality. Step 3 ① Check the power supply from PBA. Step 1 nF Error Check ① Check the water supply hose during installation.Turn knob to select tS mode. while pressing the power button. Step 2 ① The structure of Pump-Case Tub bottom connection gets damaged and separated. bind it with Cable Tie.5Ω ☞ Replace the Wire or Pump ☞ Step #2 Wire Check ② Small foreign materials .Check pump drain impeller is broken. small foreign materials could drain with water because there is no filter. . it can make a little bit of noise but it is not a problem . Step 1 nD Error ① Check the Pump with the drain fail. .When water is draining through drain hose.27/37 - . 2012) ② Replace the damaged portion of Pump-Case and fix wire.Check Pump Coil at Yellow↔Black : 15. .Separation and wire breakage occur due to constant vibration.Structure of Tub bottom Pump-Case assembly (Portion produced before Dec 10. nd Error Check Point Check the condition of Pump & Hose. So.Tip 4-2. .Check Voltage at Pin Yellow↔Black : AC120v ☞ Replace the Main PCB . Thus. .Insert the taping into wire hook. . do not adjust it.6kHz ☞ If the frequency is 26. water supply stops.4kH : 25. replace it. .Push the Spin button+Delay Start button for about 10 sec.28/37 - Not Adjust Bolt .L. ※ How-to-read: 02<->66 => 0266 => 26. ☞ Maintain the coil resistance at 20~24Ω -> If O.Measure the water level sensor during stand-by with the power on. Thus. have it checked.Tip 4-3.Measure the coil resistance and check for wire breakage. . ③ Check if the water level sensor terminal contact is incomplete. ② Check the water level sensor. ④ They apply bond to the top part of water level sensor when shipped from factory. Thus.Turn knob to select the Heavy-Duty course. ③ Measure the frequency when the water level sensor is on stand-by. Step 2 OE Check ① Check the sensing of water level sensor. Step 1 IE Check ① If 1E error occurs in Main PBA. which is considered water leakage phenomenon caused by Tub damage. . . ② The frequency does not rise during water supply. . . ※ If you adjust it.if the hose is punctured or detached. IE / OE Error Check Point Check the water level sensor & connection condition.if water level hose is clogged by foreign substance or bending. .02<->66 are displayed by turns.9kHz or lower. replace it. the spinning mode cannot be activated due to change in Reset frequency. . have it replaced. .02<->66 are displayed by turns. ② Measure the frequency when the water is at mid. .Check if air is leaking from punctured water level hose. have it checked.29/37 - .Tip 4-4. . Step 2 Water level hose Air leakage ① If LE error occurs in Main PBA.Crack in the water level hose. LE Error Check Point Check the water level sensor & the water leakage condition. . If it is removed. Step 1 LE Error Check ① If LE error occurs in Main PBA. ② Don’t remove the screw holding drain hose to frame. ※ How-to-read: 02<->66 => 0266 => 26.to high level.Turn knob to select the Heavy-Duty course.Measure the water level sensor during stand-by with the power on. drain hose is down on floor and water is drained out automatically ☞ Check if there are holes on drain hose.Push Spin+Delay Start for about 10 sec. Step 3 Drain hose Siphon ①If drain hose is inserted too deeply into drainage adjust it not to sink to water in drainage. . have it checked.6kHz ☞ Frequency of 21~24kH : If out of range. . Separate the 9Pin housing to measure the Female terminal.Pin #1 / #2 / #3 of CN3 = AC 145v (GND CN1 Black) ☞ Replace the PBA CN3 1-U 2-V 3-W Step 2 ① Washing Motor Stator Defect .Check Voltage at Pin Green and Blue/Orange ※ Spin-Basket slow turning by manually .Check Voltage at Pin Green and Red : 5v ☞ Replace the Main PCB 0↔1v . .Constraint phenomenon occurs during operation because the surrounding iron powder enters by magnetism of Rotor-Magnetic. Step 2 ① Hall Sensor Characteristics Check .Separate the Cover-Panel from product.30/37 - .Tip 4-5.Motor Coil Measurement ☞ between 3 phrases of Coil U↔V↔W : 9. Step 1 ① Check the Wash Motor Supply Voltage of PCB . ② Washing Motor Rotor Constraint . incorrect water level is sensed.Remove CN9 and measure the Resistance : about 40~60 ㏀ .In the case of coil value open defect.Measure the Hall Sensor Resistance Red/Blue/Orange pin (GND CN9 Green) ☞ Replace the Wire or Motor ② Motor Control Signal Characteristics Check .8±2Ω . . Thus. 3E Error Check Point Check the condition of Motor rotation & Hall Sensor. check the terminal pin. net is not used. Step 1 dC Error Salt-Water ① Tub Balancer Check . Case#3 – When washing bedding. ☞ If OK with the recommended washing usage condition & installation condition.For the front and rear of product. Case#1 – Level defect due to floor damage. check the installation condition of Step #2. check the levelnessmeasuring apparatus on the side of Frame. check the levelnessmeasuring apparatus at the top of Lid-T/C. replace the SpinBasket.31/37 - . Case#2 – Shaking due to old laundry room floor(lumber). ② Product moves due to floor shaking.If there is no water sound inside the Balancer when checking Tub. Case#1 – Inclination occurs due to a little or too much laundry.For the left and right of product. Mats. : Water–Proof Sheet.Tip 4-6. Thus. it is defect. . ☞ When complying with recommended washing usage condition. Case#2 – Inclination occurs when the spin-only course is used.Check if moisture-proof cloth is used. clothing ③ Unbalance vibration caused by laundry inclined to one side. ② Unbalance-Retry phenomenon caused by moistureproof cloth . dC Error Abnormality Check Point Check the customer usage-condition/installation for unbalance & the motor condition. . and explain not to use it. Step 2 ① Check for Frame touch caused by inclined installation. . check the Motor & Hall Sensor of Tip 4-6. Check the connection of wire ② Remove 6-Pin Housing ③ Check the thermistor resistance. ② Check for the normal operation of PBA. .Measure the resistance of both ends of Thermistor in the room temperature. ※ Normal resistance : 97~98 ㏀ (10℃) 60~61 ㏀ (20℃) 39~40 ㏀ (30℃) ④ Measure the resistance of both ends of Thermistor in the room temperature of 25℃ (Green/Pink) : 47.2㏀ ☞ Replace the thermistor Step 2 ① Connect 6-Pin Housing and turn the power on. tE Error Abnormality Check Point Explain the Thermistor operation. (Blue/Pink) : DC 2.Tip 4-7. .72v ☞ Replace the PCB Step 3 nF1 ① Check if the cold/hot water supply hoses are switched when installed. Step 1 tE Error ① Wire connection .32/37 - . Step 1 dS Error ① If the dS Error occurs. ② Remove the Rib from Lever inserting part of Door-Lid-T/C.Tip 4-8. Check motor resistance (Checking part : Black-Brown Wire) ※ Normal resistance : 33Ω to 46Ω between the terminals of Motor. FL. Check Door Unlock contact Resistance (Checking part : White-Blue Wire) ☞ If Resistance is satisfied with Spec.33/37 - . ☞ Replace the Door Lid-T/C Rib 제거 Step LO Error ①In state of Door Unlock. ☞ Replace the Door-Lock Step 2 FL Error ① Sensing error occurs due to Door-lock interference because the Door Lid-T/C shrinks in the winter. ☞ Close the Door properly and press Start. ③ If laundry is jammed under the Door. ② In state of Door Unlock. ② If press Start with the Door open. dS. LO Error Abnormality Check Point Check the Door / Door-Lock. ☞ Replace the door-Lock . replace sub PBA. Step 1 AE Error ① Disassemble sub PBA . You can see that the resistance of defective tact switches is not normal.0 ( when tact switch is pressed ) ☞ Replace the Sub-PCB .∞ ( when tact switch is not pressed ) .34/37 - . ☞ Replace the Sub-PCB Step 2 nE Error ① If there are no button stuck on control panel. ☞ The Resistance : .Tip 4-9. AE. ※ This case can be caused when tact switches on sub PBA are defective. nE Error Abnormality Check Point Check the PBA-communication / Button. ② Check the connector which connects sub PBA and main PBA on sub PBA. 6V . .45~85㏀ / DC +2. 10Pin YEL (SD0) .6V . 8E1 Error Abnormality Check Point Check the PBA-communication / Button. ② Check for MEMS wire breakage & circuit defect. there is difference in measurement due to difference in Impedance.L). ☞ Replace the PBA of Voltage .Separate the terminal to measure the MEMS-Resistance. . 8Pin WHT (SPC) .6V .MEMS Terminal Check . . 9Pin ORG (SD1) . Step 1 8E Error ① Main PCB all-in-one type MEMS circuit ② Check for the incomplete contact of water level sensor terminal.According to characteristics of Tester. ☞ Replace the PBA Step 2 8E1 Error Check Point ① Check the condition of terminal contact to check MEMS.45~85㏀ / DC +3. 11Pin PNK(CS1) .45~85㏀ / DC +2. . 8E.Connect the terminal and measure the voltage with the power on.45~85㏀ / DC +2.45~85㏀ / DC +2.35/37 - MEMS Check MEMS-Resistance Check PBA-Voltage . 7Pin RED (VCC) .6V ※12Pin BLU(GND) – Contact to (-) Tester ☞ Replace the MEMS of Resistance .3V .Judgment should focus on wire breakage (O.Tip 4-10. door lock S/W by pressing a button.36/37 - . ② Software version is displayed and turn jog-dial so that the version disappears. circulation pump. Power Off Status Quick Test Mode Power On Status Service Mode Quick Spin Test Mode S/W Version Check Mode Board Input Test Mode Diagnostic Code Check Mode Model Quick test Quick spin mode test mode WA400 WA422 Delay start + Pre Soak +Power Key Spin+ Soil level+ Power key Delay start WA456 + Eco Plus +Power Key Service S/W version Board input Diagnostic mode check mode test mode mode Delay Start Extra Rinse +Extra rinse Soil level Spin Delay Start Eco plus +Aquajet # Quick Test Mode You can check the operation of main electric parts easily on quick test mode. (Water valve. Model WA400 WA422 WA456 Key Check part Temp Water valve Spin Drain pump Soil level Door lock S/W . heater. Door lock S/W. ③ You can check the operation of water valve. Heater. drain pump.#5. Schematic Diagram of Repair Check Point Test Mode Check the Test Mode / Diagnostic Mode. Symptom : Test Mode & Circuit Diagram 5-1. Drain pump) ① Enter Quick test mode. When you enter Service mode. . And if you turn jog-dial in a clockwise or counter-clockwise. As it enters into quick spin test mode. CL:close) Door lock S/W status (UL:unlock LO:lock) # Diagnostic Mode You can check what error codes have occurred through diagnostic mode. . it starts spinning and reaches to its maximum RPM. you can see motor spin RPM. Service mode can be entered during all washing cycle without interrupting the cycle except some of test modes.37/37 - Water Frequency . Turn jog-dial so that the LED turns on and press the start / pause button. Course Display Normal Water temp. you can enter into quick spin test mode. # Board Input Test Mode Board input test mode is to display a specified input.# Service Mode Service mode enables service technicians to verify the operation of washing machine and do troubleshooting.The washer must be on to go into the Service mode. ‘d’ is displayed. # Quick Spin Test Mode You can check motor spinning on quick spin test mode. When motor is not spinning. you can see error codes that have happened recently. When you enter into diagnostic mode. As it enters into board input test mode. (℃) Perm Press Water temp. (℉) Delicates/ Quick Wash Pure Cycle Hand Wash Door status (OP:open. .