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Error code · Microwave

Code F02 in Your Whirlpool Built-In Microwave: Temperature Sensor Reading

When a Whirlpool built-in microwave or microwave drawer, for example model WMC50522AS, shows F02, the control is reporting a problem that may be in the oven temperature sensor, the control, or the wiring that joins them.…

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Code
F02
Appliance
Microwave
Brand
Whirlpool
Warranty
30-day workmanship

What F02 means

When a Whirlpool built-in microwave or microwave drawer, for example model WMC50522AS, shows F02, the control is reporting a problem that may be in the oven temperature sensor, the control, or the wiring that joins them. This is an older-generation display code, and the same guidance applies to F01. Owners find the oven will not heat or the cycle ends and F02 stays in the display until power is reset.

Common causes of F02

  • Oven temperature sensor
  • Electronic control
  • Wiring or connector in the sensor circuit
✓ One safe check you can try

1. Switch off the breaker feeding the microwave and wait a full minute. 2. Switch the breaker on again. 3. Stay near the oven for one minute and see whether F02 returns. 4. If the display is clear, run a short cycle to verify operation. 5. If F02 returns, avoid restarting it repeatedly.

! Why to stop there
  • After the reset we still need to know whether the sensor reads correctly, so we test its circuit.
  • The control board is checked last, so you are not asked to pay for a board that is working.
  • You see the written price before any part is ordered.
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.
→Same appliance

Other Microwave codes

FC E1Whirlpool Over-the-range Microwave Wi-Fi Code FC E1: Weak Signal FC E2FC E2 on a Whirlpool OTR Microwave: Router Connection Lost FC E3Whirlpool Over-the-range Microwave Showing FC E3 for Wi-Fi: Module Check FC E7Whirlpool OTR Microwave Connection Code FC E7: Appliance Not Reaching the Internet FC E8Whirlpool OTR Microwave Registration Code FC E8: Entry Mistake FCE8Whirlpool Over-the-range Microwave Registration, FCE8: Wrong Model Selected Feature Not Available or Fault DetectedWhirlpool Built-in Microwave Message "Feature Not Available": Retry or Cut Power LOCWhirlpool Microwave LOC on the Display: Control Lock Is On
F02F02 questions
Why does my microwave show F02 instead of F01?

Both are older-style codes with the same guidance for the oven temperature sensor circuit. The different number does not point to a different part, as far as the manufacturer states.

Will a power reset keep F02 away?

It can clear a one-time glitch. If F02 comes back, the circuit still has a problem and we need to test the sensor, control and wiring.

How do I know if repairing it is worth it?

We tell you after the diagnosis. We give a written price, explain the cause, and say plainly if a newer unit would be the better choice.

Book a visit

Still seeing F02?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107