GE Range Error Code ER 24

ER 24 on a GE range indicates a MTwisT control fault where the main control board has detected a wrong number of relays. The control system expects a specific relay count from the relay board, and that count does not match what is being recognized. This points to a relay board failure, a wiring issue between boards, or an incompatible relay board.

A reset by unplugging the range for a few minutes may temporarily clear the code if the fault was caused by a one-time initialization error during a power interruption. However, if there is an actual hardware fault such as a failed relay board or a damaged wiring connector, the code will return after power is restored. A reset alone is not a fix for an underlying component failure.

Repair costs depend on which component is at fault. A relay board replacement typically ranges from around 80 to 200 dollars for the part, plus labor if a technician is hired. A main control board can range from 150 to 350 dollars or more depending on the model. If the issue is only a loose wiring connector, the cost may be limited to a service call fee.

Some basic steps, such as unplugging the range and reseating wiring connectors between the control board and relay board, can be performed by a knowledgeable DIYer. However, if the relay board or main control board needs replacement, working safely around high-voltage components inside the range requires comfort with appliance repair. If you are not experienced with internal appliance diagnostics, a qualified technician is recommended.

ER 24 indicates the control system cannot verify the correct number of active relays, which means one or more heating circuits may not operate correctly or may behave unpredictably. It is not advisable to continue using the range for cooking while this fault is active. The range should be inspected and repaired before regular use resumes.