E5C Moderate Moderate DIY
Frigidaire Dryer E5C — Exhaust thermistor shorted / over temperature
Frigidaire Dryer · Error code E5C
What E5C Means
Control reads thermistor resistance too low or sees an over-temperature condition at the exhaust. Often the sensor is shorted, or airflow is severely restricted causing real overheat.
Symptoms
- E5C shown on display
- Dryer shuts down during cycle
- Cabinet/exhaust hotter than normal
- Long dry times
Common Causes
1
Clogged lint screen or vent duct
Restricted airflow drives real exhaust temp above limit.
2
Shorted exhaust thermistor
Sensor failed shorted, reads near 0 ohms.
3
Stuck-closed heating element relay
Element runs constantly even when control commands off.
4
Main control board fault
Bad input or relay driver.
How to Fix It
- Unplug the dryer.
- Clean the lint filter and inspect the full vent run to the outside hood — clear any blockage.
- Remove access panel and measure exhaust thermistor resistance; replace if near 0 ohms.
- Inspect heater element/relay for welded contacts.
- Run a test cycle and verify exhaust temp with a meter probe — should not exceed ~165°F outlet.
- Replace main control board if relay sticks closed with no command.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Frigidaire Dryer Codes
Verified against manufacturer documentation: frigidaire.com
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.