What F3 E3 Means
Built-In Microwave, including the microwave-oven combination: KitchenAid publishes for F3 E3 "There may be a problem with the Oven Meat Probe, Meat Probe Receptacle, or the associated wiring." Unlike the probe codes that carry only a diagram and a connection check, this one names the parts. The control reads the probe as a resistance and works out food temperature from it; a value that cannot be a real temperature is what raises the code.
Common Causes of F3 E3
- A meat probe failed, or damaged along its lead
- A receptacle with a bent, dirty or spread contact
- Wiring between the receptacle and the control
🔧 One Safe Check You Can Try
Let the probe and the cavity cool before handling either - a probe pulled from a roast is hot enough to burn. Then check the plug is fully seated in its receptacle, look at the lead for kinks or damage where it passes the door, and make sure you are using the probe meant for this cavity. If F3 E3 stays, power the unit down by switching off the circuit breakers for one minute, power it back up, watch the oven for one minute to see whether the code returns, and verify the oven operates.
⚠ Why You Shouldn't Go Further Than That
- The receptacle is mounted in the cavity wall with its wiring on the far side, so anything beyond cleaning the plug is inside the appliance.
- The magnetron circuit runs at thousands of volts and its capacitor holds that charge with the appliance dead and cold, so no part of this diagnosis is an owner task once the case is on the other side of it.
- A probe that reads wrongly rather than not at all will happily report that meat is done when it is not, which is a food-safety problem rather than an inconvenience.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.