Model reference
Samsung DMR78AHWXAA
Dishwasher
4 documents11 error codes9 service modes
Available documentation
Service Manual
- Samsung Dishwasher DMR77 78 57 Service Manual106 pg
- DISHWASHER SERVICE Manual106 pg
Tech Sheet
- Fast Track Troubleshooting9 pg
Other
- ASC201003080013 pg
MyPros+ Max
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- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (11)
CodeMeaning
4EWater supply error4E1Water supply error due to hot water temperature exceeding 176°F (80°C).5EDrain error9ELow Level Sensor errorbE2Button errorHEHeater errorHE1Heater error related to thermistor or heater relay malfunction.LEWater leakage erroroEOverflow errorPEHalf load errortE1Thermistor errorService modes (9)
- Service Inspection ModePress the Delay Start + Normal + Power keys at the same time for two seconds
- t1 - Inlet Valve / Flow Meter / Low Level Sensor TestEnter Service Inspection Mode, select t1 (default mode)
- t2 - Circulation Motor TestEnter Service Inspection Mode, press Normal key until t2 is displayed
- t3 - Circulation Motor / Heater / Thermistor TestEnter Service Inspection Mode, press Normal key until t3 is displayed
- t4 - Fan Motor TestEnter Service Inspection Mode, press Normal key until t4 is displayed
- t5 - Drain Pump / Low Level Sensor TestEnter Service Inspection Mode, press Normal key until t5 is displayed
- t6 - Low Level Sensor TestEnter Service Inspection Mode, press Normal key until t6 is displayed.
- t7 - Thermistor TestEnter Service Inspection Mode, press Normal key until t7 is displayed.
- t8 - Half Load Position / Distributor Motor / Micro Switch Test (DMR77 model)Enter Service Inspection Mode, press Normal key until t8 is displayed
Full entry steps, exit procedures, and test sequences are available in Max.
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