GE Range Error Code ER 25

ER 25 indicates a fault in the MTwisT control system described as a false connection on the mains supply. This means the control board has detected something unexpected or inconsistent with how it is receiving line voltage. The cause can range from loose wiring at the terminal block to a failing control board. A thorough inspection of the power supply path is needed to pinpoint the issue.

It is not recommended to continue using the range while this error is active. ER 25 indicates a problem with the main power connection or its detection, which could point to a wiring fault that poses a potential shock or fire hazard. Discontinue use and unplug or disconnect the range at the breaker until the issue is diagnosed and resolved.

Repair costs depend on the root cause. If only a loose connection needs to be secured or a power cord replaced, costs are relatively low, typically in the range of $50 to $150 including labor. If the MTwisT control board itself needs replacement, parts and labor combined can run from $200 to $450 or more depending on the specific model and local labor rates.

Some causes of ER 25, such as a loose terminal block connection or a damaged power cord, are within reach for a knowledgeable DIYer comfortable working with high-voltage appliances. However, because this fault involves mains voltage, there is a real safety risk if proper precautions are not taken. If you are not experienced with appliance electrical work, it is best to have a qualified technician perform the diagnosis and repair.

Resetting the range by cutting power at the breaker for a few minutes may temporarily clear the error code if the fault was caused by a transient voltage fluctuation. However, if the underlying cause is a physical wiring issue or a failing control board, the code will return once power is restored and the control performs its self-check. A reset should be considered a diagnostic step, not a fix.