Whirlpool Oven Error Code E5 F6

E5 F6 means the control board has no cavity size command stored in its memory. The control requires this value to regulate cooking functions properly. The oven will enter a cavity size select mode on power-up and the value must be programmed using the keypad before normal operation can resume.

The oven will not operate normally while E5 F6 is active because the control board lacks the configuration data it needs to manage cooking functions. You should complete the cavity size programming procedure before attempting to use the oven. This is a configuration issue rather than a safety hazard, but normal cooking operation is not available until the error is resolved.

If the fix is simply reprogramming the control board using the keypad, there is no parts cost involved. If the control board has a memory fault and cannot retain the programmed value, a replacement control board typically costs anywhere from $150 to $400 or more depending on the model, plus labor if a technician performs the repair.

When the oven powers up in cavity size select mode, use key 6 (down) or key 3 (up) to scroll to the correct cavity size for your oven model, then press START to save the selection. This programs the required value into the control board and should clear the error. If the error comes back after the next power cycle, the control board may have a memory fault and need replacement.

Cutting power to the oven will not clear E5 F6 because the error is caused by a missing stored value, not a temporary fault. Each time the control powers up without a programmed cavity size, it will re-enter the cavity size select mode and display the error. The correct resolution is to program the cavity size using keys 3 and 6, then press START to accept.