Whirlpool Cooktop Error Code F6-E3

F6-E3 indicates an over-temperature condition in the warming drawer, sometimes called a runaway temperature fault. The control system detected that the warming drawer exceeded its safe temperature limit and could not regulate it back down. This is a protective fault designed to prevent overheating. The appliance should not be used until the cause is diagnosed and corrected.

You should stop using the warming drawer immediately when this code is active. A runaway temperature condition means the drawer is not being properly controlled and could pose a burn or fire hazard. The cooktop surface burners may still function, but the warming drawer should remain off until the fault is fully resolved.

Repair costs depend on which component has failed. A temperature sensor replacement is generally the least expensive fix, typically ranging from around $20 to $80 for the part. A control board replacement is on the higher end of the cost spectrum, with parts often ranging from $100 to $300 or more depending on the model. Adding professional labor charges will increase the total, commonly bringing the repair into the $150 to $450 range depending on the specific diagnosis.

Some of the diagnostic steps, such as entering diagnostic mode by pressing CANCEL, CANCEL, then START and checking relay operation, can be performed by a knowledgeable DIYer. However, repairs involving the control board, heating element, or temperature sensor require comfort working with electrical components and disassembling the appliance. If you are not experienced with appliance electrical repair, a qualified technician is recommended.

A reset may temporarily clear the code, but if the underlying component failure is still present, the fault will return once the warming drawer is used again. Simply resetting the appliance does not address the failed relay, sensor, or wiring issue causing the runaway temperature condition. A proper diagnosis is necessary to prevent the code from recurring.