Frigidaire FCGD4900HW 8.0 cu ft Gas Dryer with Quick Dry EH2 Error Fix: AC Line Frequency Out of Range

Error code EH2 on the Frigidaire FCGD4900HW 8.0 cu ft Gas Dryer with Quick Dry means: AC Line Frequency Out of Range. The control board detected AC power line frequency outside acceptable range (50-60 Hz ± 2 Hz). Check for power quality issues — a faulty generator, unstable power supply, or interference from nearby heavy equipment. If the dryer is on a backup generator, ensure stable 60 Hz output. Replace the control board if power quality is confirmed normal.

The most successful fix is "Test Power Line Frequency and Replace Control Board if Needed" (medium difficulty, ~60 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test Power Line Frequency and Replace Control Board if Needed") is rated medium difficulty and takes about 60 minutes. Tools needed: T20 Torx screwdriver, Digital multimeter with frequency measurement.

DIY cost: $10-$20. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

The Frigidaire FCGD4900HW 8.0 cu ft Gas Dryer with Quick Dry has 8 other known error codes, including: E4A (Inlet Thermistor Open or Shorted), E4B (Outlet Thermistor Open or Shorted), E5B (Door Switch Open — Door Not Closed), E5C (Motor Start Failure), E61 (Heater Relay Not Closing), and 3 more.

Error code EH2 also appears on 5 other Frigidaire models: FCED4900HW 8.0 cu ft Electric Dryer with Quick Dry, FFRE4120SW 7.0 cu ft Electric Dryer with Wrinkle Shield and Sensor Dry, FFRE4120SW2 6.7 cu ft Front Load Electric Dryer, FFRG4120SW 6.7 cu ft Front Load Gas Dryer, GLTE2940FS 5.8 cu ft Gallery Electric Dryer. The fix may vary by model, so check each model's specific page for tailored repair steps.