KitchenAid Combination Oven Code F1 E6: microwave thermistor or sensor

What F1 E6 means

On KitchenAid combination microwave-wall ovens such as the KOCE507ESS, F1 E6 means there may be a problem with the microwave thermistor or sensor, or the associated wiring. This temperature-sensing part watches the microwave cavity area. When its reading is wrong, the control shows F1 E6 and may stop the microwave to protect itself. Heat protection is the sensor's job, so the control prefers to stop the microwave than to run blind.

Common causes of F1 E6

Microwave thermistor or sensor out of range
Sensor wiring open or shorted
Control not reading the sensor

✓ One safe check you can try

1. Let the unit cool with the microwave door open a few minutes. 2. Press Cancel. 3. Switch the breaker off for one minute and on again. 4. Run the microwave for thirty seconds with a cup of water. 5. If F1 E6 returns, leave the microwave off and call us.

! Why to stop there

The sensor sits inside the microwave cabinet.
Wiring checks require power-off and discharge steps.
A new sensor may not help if the wiring is the cause.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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F1 E6F1 E6 questions

Does the sensor detect food temperature?

The published meaning refers to a thermistor or sensor for the microwave, not to food. It is a monitoring part that protects the unit from heat. Correct, it watches heat around the microwave section so the unit stays protected, rather than measuring your food.

Could a blocked vent cause it?

Heat from poor ventilation can affect readings, so keep the area around the unit clear. The published meaning still names the sensor and wiring. Heat buildup can confuse the reading, so keep the cabinet clear and the vents free, though the sensor remains the main suspect.

What warranty do you give?

Thirty days on our work. Please leave the microwave unused until a technician has measured the sensor, and call us when you are ready to book, so we can bring a sensor along.