GE Range Error Code ER 3

ER 3 on a GE range indicates a Selection of Keys error within the MTwisT control system. The control has detected an invalid, conflicting, or stuck key input signal from the control panel. This fault causes the range to halt normal operation to prevent unintended activation of cooking functions. The issue can originate from a stuck button, a faulty keypad membrane, a damaged ribbon cable, or the control board itself.

A power reset, performed by unplugging the range or turning off its circuit breaker for several minutes, may clear ER 3 if the fault was caused by a transient electrical glitch. However, if a physical problem exists such as a stuck key, contaminated membrane, or damaged control board, the error will return after the reset. A reset is a good first step, but persistent reappearance of ER 3 indicates an underlying hardware issue that requires further diagnosis.

Repair costs for ER 3 vary depending on the root cause. Replacing a keypad membrane assembly typically falls in the range of $75 to $200 for the part alone, while a MTwisT control board replacement can range from $150 to $400 or more depending on the model. Adding professional labor costs will increase the total, generally ranging from $100 to $200 for a service call and repair. A technician should confirm the faulty component before any parts are ordered.

Some causes of ER 3 can be addressed without professional help, such as clearing debris from around stuck keys or reseating a loose ribbon cable. However, replacing the keypad membrane or the MTwisT control board requires disassembly of the control panel and comfort working with electronic components. If you are not experienced with appliance repair, it is advisable to have a qualified technician perform the diagnosis and repair.

It is not recommended to continue using the range while ER 3 is active. The error indicates the control system cannot reliably interpret key inputs, which means cooking functions may not respond correctly or could behave unpredictably. Discontinue use until the fault has been diagnosed and resolved to avoid any unintended operation.