GE Refrigerator Error Code F108

The F108 error code on a GE refrigerator indicates that the freezer icemaker has entered Fault Mode as a direct result of a preceding Harvest Fault condition. The harvest cycle is the process by which the icemaker heats its evaporator plate or mold to release formed ice cubes into the storage bin. When the icemaker control detects that this harvest cycle has failed to complete within the expected time window, it first logs a Harvest Fault. If the icemaker cannot recover from that harvest failure, the system escalates and locks the icemaker into a full Fault Mode, which is what F108 represents. In this state, the icemaker stops attempting to produce ice entirely until the fault is addressed.

The components most likely involved in triggering this fault chain include the icemaker thermistor or temperature sensor, the harvest heater, the icemaker motor, and the water inlet valve. A failed or out-of-range thermistor may prevent the control board from confirming that the mold has reached the correct temperature for ice release. A defective harvest heater would prevent the mold from warming sufficiently to release the ice, causing the cycle to time out. Mechanical binding in the ejector or motor assembly can also prevent the harvest cycle from completing even if the heater is functional.

Additional causes include restricted water flow leading to incomplete or malformed ice that binds during ejection, as well as a faulty icemaker control module that misreads cycle completion. Because F108 is a secondary fault that follows a Harvest Fault, simply resetting the code without identifying and correcting the root cause will typically result in the fault returning after the next harvest attempt.