Model reference

GE GDF640HSM0SS

Dishwasher

2 documents48 error codes4 service modes

Available documentation

Service Manual

GE GDF640HSM0SS Dishwasher Service Manual2 pg
Covers this model
Technical Service Guide79 pg
Covers this model

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AcF on my GE GDF640HSM0SS

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High supply voltage - supply voltage is

From Service Manual 344401, p.13:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WR55X10942

Main control board

Error codes (48)

CodeMeaning

AcFHigh supply voltage AdcInternal board failure (critical fault).CFEContinuous fill error (critical fault).CleanTurbidity Sensor Error dLFDoor latch failure (critical fault).F1Communication error with User Interface (UI) board.F112Key stuck.F128Low rinse aid detected.F153Door latch failure.F155Key stuck.F16High water temperature.F32Water level sensor invalid.F33Low pressure sensor reading.F34Leak detected.F36CSM tripped (CSM lock out).F37Diverter feedback error.F48Turbidity sensor high.F49Turbidity sensor low.F50Temperature sensor high.F51Temperature sensor low.F52Turbidity sensor calibration fail.F53Circulating pump failure.F54Drain pump failure.F55Blown pump fuse on main control board.F56Failure to drain.F58Dry heater thermistor error F59Dry heater thermistor error F60Heater relay stuck on fault.F61CSM check failed.F62Dry heater fan error.

View all 48 error codes

F63Flood condition fault F64Ignore fault.F66Dry heater fault.F86No fill failure.F87Dry heater diagnostic fault.F96Ignore fault.F97Absent heat source.F98Non-draining sump (turbidity based).F99Minimum wash temperature not met.FtdFailure to drain (critical fault).FuSBoard circulation pump fuse failure (critical fault).H20Water supply failure (critical fault).Heated DryWash Temperature Error HrfInternal board failure (critical fault).LockAlways illuminated when Error Code Display Mode is active.PrSPressure sensor failure (critical fault).StartCommunications Failure Wash BoostThermistor Error

Service modes (4)

Consumer Error ModeWhen the dishwasher is in Standby Mode (Cycle Selection Mode), press and hold the Cycle Select and…
Demo Mode ExitTo exit Demo Mode, hold SELECT CYCLE and HEATED DRY at the same time for 5-seconds.
Error ModeWith the dishwasher in Standby Mode (not running a cycle), press and hold the furthest most pad on…
Service ModeCan only be entered during Error Mode

Full entry steps, exit procedures, and test sequences are available in Max.

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