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Error code · Microwave & Advantium

GE Microwave Code F1: Thermal Sensor Open, Likely From Heat

On GE and Profile microwaves, including over-the-range and countertop models such as the JVM3160, JVM7195, JES1657 and PVM9179 series, F1 means the thermal sensor is open. The likely cause is excess heat inside the cavity that…

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Code
F1
Appliance
Microwave & Advantium
Brand
GE
Warranty
30-day workmanship

What F1 means

On GE and Profile microwaves, including over-the-range and countertop models such as the JVM3160, JVM7195, JES1657 and PVM9179 series, F1 means the thermal sensor is open. The likely cause is excess heat inside the cavity that has damaged or tripped the sensor. You will see F1 on the display and the microwave may stop heating or refuse to run. The code reports a circuit condition rather than a confirmed failed part, so testing is needed before anything is replaced.

Common causes of F1

  • Thermal sensor circuit open
  • Excess heat in the cavity from heavy use or a blocked vent
  • Wiring or connector to the sensor loose
  • Control reading the sensor input wrongly
✓ One safe check you can try

1. Let the microwave cool with the door open for a while. 2. Check that nothing blocks the vents or intake. 3. Turn the circuit breaker or fuse off for 30 seconds, then restore power. 4. Try a short heating test with a cup of water. 5. If F1 comes back, schedule a visit.

! Why to stop there
  • A reset only clears a one-time trip, and a returning F1 means the circuit is still open.
  • We test the sensor circuit and look for a heat source such as a blocked vent.
  • A written price comes before any work.
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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Other Microwave & Advantium codes

ERR / SENSOR ERRORGE Microwave Message "SENSOR ERROR": Steam Not Detected SENSOR ERRORGE Advantium Message "SENSOR ERROR": Food Does Not Match Program LOC / LOCKEDGE Microwave Message "LOC": Control Lock-Out On FOOD / Insert FoodGE Microwave Message "Insert Food": Door Not Opened Cool / -90 / -80GE Microwave Message "Cool": Probe Temperature Below 90 Degrees Use ProbeGE Convection Microwave Message "Use Probe": Probe Not Detected TurnGE Microwave Message "Turn": Turn Food Over OVEN TOO HOT FOR USING ALTERNATE METHODGE Profile Microwave Message "OVEN TOO HOT FOR USING ALTERNATE METHOD": Cavity Above 200°F
F1F1 questions
What does F1 mean on a GE microwave?

The thermal sensor is open, most likely because excess heat built up in the cavity. The control stops heating to protect the oven. You may notice the oven simply will not start.

Is it safe to keep using the microwave with F1?

No. A thermal sensor is a safety device. Leave the microwave off after a returning F1 until we have tested it. That keeps the oven from running without its overheating protection.

Can I clear F1 myself?

Turn the circuit breaker or fuse off for 30 seconds. If the code remains, schedule service, because the sensor circuit still needs to be tested. We explain the result before quoting.

Book a visit

Still seeing F1?

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

(713) 547-5545