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Frigidaire·Dryerhigh severity
Frigidaire Dryer Error Code E4A
Exhaust thermistor open
Common Causes
- 1Exhaust thermistor failed
- 2Wiring damage
- 3Connector corrosion
Step-by-Step Troubleshooting
- 1
Locate exhaust thermistor at the blower housing
- 2
Measure resistance — should read ~10K ohms at room temp; infinite = open
- 3
Check wiring connector for heat damage or corrosion
- 4
Replace thermistor if element reads open circuit
Pro Diagnostic Tip
E4A (open thermistor) causes the dryer to refuse to start as a safety measure — it cannot monitor exhaust temperature without the sensor.
You Might Also Notice
- •Dryer will not start
- •No heat detected
- •Error appears immediately on start
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$100–$225
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
137539200 exhaust thermistor
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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Get Professional Help Now
Error code E4A is a high-severity issue that can cause further damage to your dryer if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does Frigidaire error code E4A mean?
Frigidaire error code E4A indicates: Exhaust thermistor open. This is a high-severity issue affecting your dryer.
How do I fix Frigidaire error code E4A?
Locate exhaust thermistor at the blower housing Then, Measure resistance — should read ~10K ohms at room temp; infinite = open Then, Check wiring connector for heat damage or corrosion 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 dryer has error E4A?
Besides the error code on the display, common signs include: Dryer will not start; No heat detected; Error appears immediately on start. If you notice any of these symptoms, check your dryer's display panel for error code E4A.
How much does it cost to fix Frigidaire E4A?
Repair costs for Frigidaire E4A typically range from $100 to $225 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.