Affected model seriesFrench-door refrigerator service-diagnostic family
Quick answer
Fresh-food icemaker thermistor out of range.
Model compatibility: GE reuses codes across series and model years, so 0511 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Fresh-food icemaker thermistor out of range.
Signs
Symptoms you may notice
The code may return shortly after startup or during the affected cycle stage.
A harvest cycle may run too long or fail to complete.
The fault may return each time the icemaker attempts the same stage.
Ice production may stop or become inconsistent.
Why it happens
Possible causes
A loose icemaker/door harness connection.
Ice binding the mold, rake, bucket, or harvest mechanism.
Wiring damage between the sensor and the main control.
A water-supply problem that prevents a normal harvest/fill sequence.
Moisture/temperature conditions affecting the sensor circuit.
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Do not disconnect internal sensors just to “test” whether the code clears; that can create additional faults.
Check that the ice bucket and user-removable parts are seated normally.
Confirm the household water supply is on if the icemaker fault involves fill.
Note whether the code appears immediately or only after heating/cooling begins; that timing is useful for diagnosis.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your GE appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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