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Frigidaire·Microwavelow severity
Frigidaire Microwave Error Code F5
Humidity sensor error
Common Causes
- 1Steam-vent sensor grille caked with food splatter
- 2Loose or corroded sensor connector
- 3Failed humidity-sensing element
Step-by-Step Troubleshooting
- 1
This sensor sniffs the rising steam to decide when a sensor-cook is done, so a fouled one throws F5 and its auto modes misjudge doneness — cleaning the pickup is the first and usual cure
- 2
Find the small vented sensor grille inside the cavity, up top or on a sidewall, and wipe the greasy film off it with a damp cloth so it can actually smell the steam again
- 3
Run the empty oven for a minute to bake off any stubborn residue clinging to the element after the wipe-down
- 4
If sensor-cooks still misfire, unplug the sensor connector and check for a loose seat or corroded pins before writing off the element itself
Pro Diagnostic Tip
Because this pickup only reads steam to time the auto modes, a splatter-clogged grille is almost always the whole problem — a wipe and a one-minute empty run clears most F5 faults. Note that manual time-and-power cooking is unaffected, which is a handy stopgap while you clean or source the part.
You Might Also Notice
- •Sensor auto-cook modes finish wrong
- •Popcorn comes out scorched or still kernelled
- •Auto-reheat runs for the wrong length of time
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 $3,000+ 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?
This sensor sniffs the rising steam to decide when a sensor-cook is done, so a fouled one throws F5 and its auto modes misjudge doneness — cleaning the pickup is the first and usual cure Then, Find the small vented sensor grille inside the cavity, up top or on a sidewall, and wipe the greasy film off it with a damp cloth so it can actually smell the steam again Then, Run the empty oven for a minute to bake off any stubborn residue clinging to the element after the wipe-down 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: Sensor auto-cook modes finish wrong; Popcorn comes out scorched or still kernelled; Auto-reheat runs for the wrong length of time. 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.
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