E4B
Frigidaire · FCED4900HW 8.0 cu ft Electric Dryer with Quick Dry
The outlet temperature thermistor that monitors exhaust air temperature has an open or shorted circuit. Located near the exhaust duct, this sensor detects dryer efficiency and vent restrictions. Check wiring and connections. If the outlet thermistor consistently fails, check the exhaust vent system for blockage. Replace the thermistor if defective.
Error E4B on the Frigidaire FCED4900HW 8.0 cu ft Electric Dryer with Quick Dry means: Outlet Thermistor Open or Shorted. The top-ranked community fix is “Test and Replace the Outlet Thermistor Sensor” (medium difficulty, ~40 min, DIY cost: $15-$25). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · dryer
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many dryer repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $110-$160.
dryer · 2 fixes
dryer · 2 fixes
dryer · 2 fixes
dryer · 2 fixes
dryer · 2 fixes
Inlet Thermistor Open or Shorted
Door Switch Open — Door Not Closed
Motor Start Failure
Heater Relay Not Closing
Heater Relay Stuck On — FIRE HAZARD
Heating Element Open Circuit
Heater Relay Stuck — Multiple Trips
Stuck Heater Relay — Safety Shutdown
The Frigidaire FCED4900HW 8.0 cu ft Electric Dryer with Quick Dry has 8 other known error codes:
Error code E4B also appears on 5 other Frigidaire models:
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