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Error code reference

GE Cooktop Error Code 108

Line monitor failure.

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What the 108 error code actually means

Error code 108 means your GE cooktop detected a problem with the power supply monitoring system and shut down as a precaution. Try turning the cooktop off at the breaker for about a minute, then turning it back on. If the code comes back after resetting the power, the main control board will likely need to be replaced by a technician.

Diagnostic procedure

The full 108 procedure

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1
First diagnostic step
Recycle power to the cooktop. If fault persists, replace main board and recalibrate inductive sensors.
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Most common causes of 108

Ranked by how often they cause this code
  1. 1Transient power event or voltage irregularity
  2. 2Failed main control board
  3. 3Corrupted control board firmware or logic state
  4. 4Unstable or incorrect supply voltage at the cooktop
  5. 5Inductive sensor calibration loss following board fault

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Questions people ask about 108

What does 108 mean on a GE cooktop?
Error code 108 on a GE cooktop indicates a line monitor failure. The line monitor is a circuit on the main control board that tracks incoming AC power for irregularities. When it detects a problem, the cooktop shuts down and displays code 108 to protect internal components. The fault may be caused by a power disturbance or by a failed main control board.
Is it safe to use my GE cooktop while it shows error code 108?
No, you should not attempt to operate the cooktop while code 108 is active. The cooktop disables itself when this fault is detected specifically to prevent unsafe operation under abnormal power conditions. Resolve the fault before resuming use.
What parts are needed to fix error code 108 if resetting does not work?
If recycling power does not clear the fault, the main control board is the required replacement part. After installing the new board, the inductive sensors must also be recalibrated to restore full cooktop functionality. No other components are specified for this repair.
Will resetting the power clear error code 108 on my GE cooktop?
A power reset is always the correct first step for code 108 and will clear the fault if it was triggered by a transient voltage event. Turn the cooktop off at the circuit breaker for at least one minute, then restore power. If the code returns after the reset, the main control board has likely failed and will need to be replaced.
How much does it cost to fix error code 108 on a GE cooktop?
If the fault clears with a power reset, there is no repair cost involved. If the main control board needs replacement, parts and labor typically range from $200 to $500 or more depending on the specific model and local service rates. Inductive sensor recalibration is also required after a board replacement, which may be included in a technician's service fee.

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