Author: ApplianceFixGuide Team

Problem: Flash code 2: Drain system failure; pump obstruction or motor fault (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher and remove lower access panel.
2. Place towels under pump area. Open pump access cover to drain residual water.
3. Remove coarse filter to access pump impeller. Rotate impeller manually—it must spin freely 360°.
4. Clear any debris (food particles, utensils) blocking impeller or housing.
5. If impeller is cracked, broken, or pump housing is damaged: disconnect pump wiring harness.
6. Loosen hose clamps on inlet/outlet hoses. Remove mounting screws securing pump.
7. Extract old drain pump assembly. Clean mounting surface thoroughly.
8. Install new drain pump using OEM part DD31-00010A. Align mounting tabs, secure screws.
9. Reconnect hoses with clamps tightened firmly. Reconnect wiring harness.
10. Reinstall filter and access cover. Restore power. Run Drain cycle to verify complete water removal within 90 seconds.

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Problem: Flash code 3: Door switch malfunction; switch stuck open or wiring fault (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher from electrical power.
2. Ensure door closes fully with firm click. Check door strike plate alignment on frame.
3. Remove inner door panel or control console to access door switch assembly near latch.
4. Test door switch continuity with multimeter: switch must CLOSE when door is pressed shut.
5. If switch fails continuity test: disconnect wiring harness.
6. Remove mounting screws securing switch assembly. Extract old switch.
7. Install new door switch using OEM part DD64-00001A. Verify actuator arm aligns with door latch.
8. Reconnect wiring harness securely. Reassemble door panels.
9. Restore power. Test by opening/closing door while observing control response.
10. Start cycle to confirm dishwasher operates only when door is fully closed and latched.

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Problem: Flash code 4: Temperature sensor fault; thermistor open/shorted (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher and allow components to reach room temperature.
2. Remove lower access panel to access temperature sensor on heater housing.
3. Disconnect wiring harness from thermistor.
4. Measure resistance across sensor terminals with multimeter. Expected: ~10kΩ at 77°F.
5. If reading is infinite (open), near zero (shorted), or significantly off: remove mounting screw.
6. Gently extract thermistor from mounting well. Clean well with isopropyl alcohol.
7. Apply thermal conductive paste to tip of new sensor.
8. Install replacement thermistor using OEM part DD31-00003A. Secure mounting screw to 4 in-lbs torque.
9. Reconnect wiring harness firmly. Reinstall access panel.
10. Restore power. Run cycle to verify temperature display updates accurately and error clears.

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Problem: Flash code 5: Wash motor fault; seized bearings or electrical failure (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher and remove lower access panel.
2. Manually rotate wash impeller from pump housing access. Should turn smoothly with no grinding.
3. Disconnect motor wiring harness from main board. Label connections.
4. Test motor windings resistance between terminals (U-V, V-W, W-U). Readings must be balanced (3-8Ω).
5. Test hall sensor resistance within motor assembly per wiring diagram (typically
6. 5-
7. 5kΩ).
8. Inspect impeller area for foreign objects jamming rotation. Remove obstructions carefully.
9. If motor binds mechanically or electrical tests fail: remove mounting bolts securing motor.
10. Extract old wash motor assembly. Clean mounting surface thoroughly.
11. Install new motor assembly using OEM part DD31-00008A. Torque mounting bolts to 18 in-lbs.
12. Reconnect wiring harness. Restore power. Run motor diagnostic test to verify smooth operation and correct rotation direction.

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Problem: Flash code 6: Control panel error; stuck button or ribbon cable fault (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher from electrical power.
2. Press each button on control panel firmly 5 times to dislodge debris.
3. Remove control console assembly: release clips or remove screws, disconnect ribbon cable.
4. Inspect ribbon cable and connectors for moisture, corrosion, or physical damage. Clean contacts with isopropyl alcohol.
5. Test button matrix continuity using multimeter per service manual pinout.
6. If short circuit persists after cleaning: replace control panel assembly using OEM part DD92-00002A.
7. Transfer all connectors to new panel. Secure mounting hardware.
8. Reconnect ribbon cable firmly until seated completely.
9. Reinstall console assembly. Restore power.
10. Verify all buttons respond correctly during operation and error code does not reappear.

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Problem: Flash code 7: Power supply fault; voltage instability or temporary outage (non-display models)

How to Fix Dishwasher Error

1. Verify household electrical power is restored. Check circuit breaker panel to ensure dishwasher’s dedicated 15A breaker is fully ON.
2. Measure voltage at dishwasher outlet with multimeter during operation—must maintain 110-120V AC.
3. Inspect power cord and terminal block connections inside dishwasher for looseness, corrosion, or arcing damage.
4. Tighten terminal block screws to 8 in-lbs torque if accessible and loose.
5. Ensure dishwasher is on dedicated circuit with no other high-draw appliances sharing the line.
6. For recurring voltage issues: install hole-house voltage regulator or dedicated UPS for dishwasher circuit.
7. After verifying stable power, restore dishwasher operation.
8. Run short cycle to confirm normal operation without error recurrence.
9. Monitor voltage during multiple cycles if problem has occurred repeatedly.
10. If error persists with stable voltage, suspect main control board fault requiring professional diagnosis.

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Problem: Flash code 8: Turbidity sensor fault; dirty window or internal sensor failure (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher and open door.
2. Locate turbidity sensor window on right side wall of tub (near bottom, behind lower rack).
3. Dip soft cloth in isopropyl alcohol. Gently wipe sensor window in circular motion to remove film.
4. Use cotton swab dipped in alcohol to clean edges and crevices of sensor housing.
5. Rinse area with damp cloth to remove alcohol residue.
6. Inspect sensor window for cracks or cloudiness. Replace if physically damaged.
7. If cleaning does not resolve error: remove lower access panel. Disconnect sensor wiring harness.
8. Remove mounting screw securing sensor housing. Extract sensor assembly.
9. Install new turbidity sensor using OEM part DD31-00007A. Ensure O-ring seals properly.
10. Secure mounting screw to 3 in-lbs torque. Reconnect harness. Restore power. Run cycle to verify error clearance.

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Problem: Flash code 9: EEPROM/memory error; corrupted firmware or processor fault (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher from electrical power for 20 minutes to attempt deep memory reset.
2. Restore power and observe if error clears during startup sequence.
3. If persistent, remove lower access panel to expose main control board.
4. Reseat all connectors on main board. Clean pins with electrical contact cleaner.
5. Inspect board for physical damage to memory chips, burnt components, or loose solder joints.
6. Check all board mounting screws and ground connections for tightness and corrosion.
7. If no visible damage but error persists: replace main control board using OEM part DD92-00001A.
8. Transfer all connectors to new board carefully. Secure mounting screws to 4 in-lbs torque.
9. Restore power. Enter service mode per model instructions to initialize board memory.
10. Run full system diagnostic to verify all functions operate correctly and error history is cleared.

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Problem: Flash code 10: Control board processor fault; hardware failure requiring board replacement (non-display models)

How to Fix Dishwasher Error

1. Unplug dishwasher for 15 minutes to reset electronics.
2. Restore power and check if error clears. If persistent, proceed.
3. Remove lower access panel to access main control board.
4. Inspect board thoroughly for burnt components, bulging capacitors, or charred traces near processor chip.
5. Check all board mounting screws and ground connections for tightness and corrosion.
6. Reseat all wiring harness connectors on main board. Clean pins with contact cleaner.
7. If visual inspection shows damage or error persists after reset: replace main control board using OEM part DD92-00001A.
8. Transfer all connectors to new board one-by-one. Secure mounting screws to 4 in-lbs torque.
9. Restore power. Enter service mode per model instructions to initialize board.
10. Run full diagnostic test sequence to verify all subsystems operate correctly and error is cleared.

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Problem: Freezer temperature sensor fault; thermistor open circuit, shorted, or out of operational range

How to Fix Refrigerator Error

1. Unplug refrigerator from electrical power or switch off dedicated circuit breaker.
2. Remove freezer interior panels to access temperature sensor (typically mounted on evaporator cover or freezer wall).
3. Disconnect wiring harness from sensor connector. Note routing path before removal.
4. Measure resistance across sensor terminals with multimeter at current freezer temperature. Compare to service manual chart (e.g., at 0°F/-18°C should be ~17kΩ).
5. If reading is infinite (open), zero (shorted), or deviates >15% from chart: remove mounting clip or screw securing sensor.
6. Gently extract sensor from mounting well without damaging threads or surrounding components.
7. Clean mounting well thoroughly with isopropyl alcohol and lint-free cloth.
8. Apply thin layer of thermal conductive paste to sensing tip of new sensor.
9. Install replacement temperature sensor using OEM part DA32-10104R. Secure in mounting clip or with screw tightened to 3 in-lbs.
10. Route wiring away from sharp edges and moving parts. Reconnect harness until audible click. Reassemble interior panels. Restore power and monitor freezer temperature display for 2 hours to confirm accurate readings.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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