Sanyo Washing Machine Error Codes



When the following problems occur, the microcomputer will detect the abnormal condition and an electronic buzzer sounds for approximately 10 seconds and digital display indicates flash as shown below.

Error CodesProblem
U4The washer does not spin. Close the Washer Lid.
U3The washer does not spin.
  • Check whether the laundry is clumped on one side of the Wash/ Spin Tub or not.

  • Check whether the Washer is on the level surface or not.
  • U5Does not wash. Check whether the Child safety mode is set or not. Close the Washer Lid.
    E1Water does not flow into tub or water flow is slim. .
  • Turn the water supply faucet on.

  • Check whether the water supply has been cut off or not.

  • Check whether the metal filter of the Water Inlet is clogged or not.

  • Check whether the washer has been freezing or not.
  • E2Water does not drain out.
  • Put down the Drain Hose from the hookhole.

  • Check whether there is anything wrong with the Drain Hose or not.

  • Check the Drain Hose for any obstructions.

  • Check whether the Drain Hose is clogged with lint or not.

  • Check whether the Drain Hose rises too high (more than 15 cm) off the ground or not.

  • Check whether the Drain Hose is too long (longer than 3m) or not.

  • Check whether the diameter of the Drain Hose is too small or not.
  • EAPress the START/ PAUSE button or turn the POWER SWITCH.
    ECPress the START/ PAUSE button or turn the POWER SWITCH.
    EH1Power supply problems; PCB faulty. Wait for frequency nominal conditions.
    EH2Power supply problems; PCB faulty. Wait for voltage nominal conditions.
    EH3Power supply problems; PCB faulty. Wait for voltage nominal conditions.

    NOTE: The Trouble indicators can be released by pressing the START/PAUSE button once if you want to release the emergency stop. Then press the START/PAUSE button again to restart the operation.

    Sanyo Washing Machine Control Panel

    Sanyo Washing Machine Control Panel

    Troubleshooting

    Trouble: Abnormal (Squeaky) sound is heard during washing




    Symptom: The squeaky sound occurs when the brake system operates. During washing, the Pulsator turns CW (clockwise) and CCW (counterclockwise), producing water flow in the CW and CCW direction. The water flow exerts force on the Spin Tub in the same directions though interlocked with the Brake Wheel during washing. The Spin Tub turns a little if the friction with the brake lining reduces, generating braking sound. This symptom will not arise due to use of long duration but is entirely an initial fault.

    Diagnosis: Turn off the power. Open the Washer Lid. Hold the Spin Tub and lightly turn it CW. If sound is heard from the brake, it is defective.

    Cause: The cause can be limited to foreign substance (grease in particular) affixed to the surface of brake lining and brake wheel, which is attributed to poor quality control in the Bearing Assembly manufacturing process.

    Handling: Replace the Bearing Case (complete) and wipe the Brake Wheel surface with alcohol.

    Trouble: Spin tub stops sound (squeak)

    Symptom: Squeaky sound is heard immediately before the Spin Tub stops.

    Cause: This symptom often arises when friction factor between brake lining and brake wheel is too big. Therefore, this occurs when brake time is short, the cause of which is attributed mainly to the improperness of brake lining material, roughness of brake wheel surface and excessive strength of brake spring, but attachment of foreign matter and high humidity can also be responsible for the symptom.

    Diagnosis: Allow water extraction program to complete automatically instead of forcibly, apply the brake, and listen for squeaky sound when the Spin Tub stops.

    Handling: Replace the Bearing Case (complete) and wipe the Brake Wheel surface with alcohol.

    Trouble: Brake does not work

    Symptom: Brake is applied when water extraction has completed, but the Spin Tub takes too long time to come to a complete stop.




    Cause: Braking torque is too small, which is attributed to excessive abrasion of brake lining, attachment of foreign substance (grease in particular) on the surface of brake wheel and brake lining, etc..

    Diagnosis: Taking approx 10 sec. of braking time, which is normally about 5 sec, can be determined to be defective.

    Handling: Replace the Bearing Case (complete) and wipe the Brake Wheel surface with alcohol.

    Trouble: Abrupt braking (When the Spin Tub stops, the entire machine moves)

    Symptom: Brake is applied when the water extraction has complete, but the Spin Tub takes a very short time to come to a complete stop.

    Cause: Braking torque is too big, which is attributed to abnormal shape of brake lining. This symptom occurs particularly when clearance between brake lining and brake wheel is too small at their tips.

    Diagnosis: Taking only 2 or 3 sec. of braking time, which is normally about 5 sec at no load, can be determined to be defective.

    Handling: Replace the Bearing Case (complete) and wipe the Brake Wheel surface with alcohol.

    Trouble: Spin tub does not rotate (Spin Tub is locked)

    Symptom: Spin Tub does not rotate despite water extraction starting stage.

    Cause: When it is caused by electric signals, water level sensor, Magnetic Coil, motor receptacle Housing Assembly, PCB Complete, Safety Switch, etc are likely to response. However, the troubles are mainly caused by related mechanical parts in this case. If this problem occurs, the clutch mechanism of Bearing Ass y will fail. Especially, one-way bearing, which composes part of Bearing Case (complete), rusted by detergent penetrating is the main cause of the trouble. Insufficient transfer of rotation due to inaccurate dimensions of clutch spring also causes the trouble.

    Diagnosis: Assuming that all electric parts are normal, check if the Spin Tub can be easily rotated by hand when the Magnetic Coil is in the state of pulling

    Handling: Replace the Bearing Case (complete) and wipe the Brake Wheel surface clean with alcohol, or replace the Clutch Spring.

    Trouble: Water leakage

    Symptom: Water leaks from somewhere around the Bearing Ass y. Parts of the Bearing are sometimes seen rusted.




    Cause: Oil seal lip lying on the top of ring (complete) is insufficiently fitted in the Outer Tub Bottom.

    Handling: Replace the Bearing Ass’y.

    Trouble: Click sound is heard during washing

    Symptom: Click sound is heard from the vicinity of the Bearing Ass y. Similar sound can also be caused by a small metal piece, such as a coin or hair pin penetrating into the back of the Pulsator, damaging and making its rear ribs into flakes and resultantly generating sound. This will not be discussed here because there is nothing to do with the Bearing Ass’y.

    Cause: Infusion engagement of the Clutch Lever with the ratchet causes the lever to jump, making noises. In the washing process, the Clutch Lever is normally engaged with the ratchet completely, generating no sound.

    Diagnosis: Normally the clearance between the circumference of the ratchet and clutch lever is approximately 3 mm. In the event of this trouble, the clearance should be 5 to 6 mm.

    Sanyo Washing Machine Manual PDF

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