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Error code reference
GE Ice Maker Error Code LED flashing 1/2 second
Harvest mode exceeded 16 minutes; evaporator thermistor has not reached 52°F, possibly due to loose/mispositioned thermistor, hot gas valve failure, sealed system leak, or restriction.
SourceGE Monogram Ice Maker - Full Service Manual (ZDI15C, ZDIS15C)p. 6-10
Diagnostic procedure
The full LED flashing 1/2 second procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for an evaporator thermistor that has not reached 52°F; inspect thermistor position, hot gas valve, sealed system for leaks or restrictions.
SourceGE Monogram Ice Maker - Full Service Manual (ZDI15C, ZDIS15C)p. 6-10
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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