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Frigidaire·Microwavelow severity
Frigidaire Microwave Error Code F5
Humidity sensor error
Common Causes
- 1Humidity sensor dirty
- 2Sensor wiring fault
- 3Steam buildup on sensor
Step-by-Step Troubleshooting
- 1
Clean the humidity sensor lens inside the cooking cavity with a damp cloth
- 2
Run the microwave empty for 1 minute to burn off any residue on the sensor
- 3
Check sensor wiring for damage or loose connector
- 4
Replace humidity sensor if cleaning does not resolve F5
Pro Diagnostic Tip
F5 often clears after cleaning the sensor — food splatter on the lens is the most common cause. The sensor is usually on the top or side of the cavity interior.
You Might Also Notice
- •Auto-cook modes do not work correctly
- •Popcorn setting overcooks or undercooks
- •Sensor reheat runs wrong duration
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$75–$175
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
5304514201 humidity sensor
Do You Have the Right Tools?
High-voltage capacitor discharge tool ($90), magnetron tester ($200), microwave leakage detector ($150). Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Microwave capacitors store lethal voltage (4,000V+) even when unplugged. This is the single most dangerous DIY appliance repair. Our techs are licensed and insured — let them handle the risk.
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Frequently Asked Questions
What does Frigidaire error code F5 mean?
Frigidaire error code F5 indicates: Humidity sensor error. This is a low-severity issue affecting your microwave.
How do I fix Frigidaire error code F5?
Clean the humidity sensor lens inside the cooking cavity with a damp cloth Then, Run the microwave empty for 1 minute to burn off any residue on the sensor Then, Check sensor wiring for damage or loose connector There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my microwave has error F5?
Besides the error code on the display, common signs include: Auto-cook modes do not work correctly; Popcorn setting overcooks or undercooks; Sensor reheat runs wrong duration. If you notice any of these symptoms, check your microwave's display panel for error code F5.
How much does it cost to fix Frigidaire F5?
Repair costs for Frigidaire F5 typically range from $75 to $175 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.