Whirlpool Microwave

When i turn my microwave on it will not heat error code F7 comes up

I have a Whirlpool microwave model [MODEL]GH5184XPS4[/MODEL] that is not heating. I am getting an F7 error code. When the oven is turned on to heat, there is a brief period where the timer counts down before the error code appears. During this time you can hear a clicking noise coming from the area of the key panel. Thanks for any guidance!