Electrolux ELFE7637AW 7.6 cu ft Electric Dryer with Steam and Sensor Dry EH3 Error Fix: Voltage Too High on L1 or L2

Error code EH3 on the Electrolux ELFE7637AW 7.6 cu ft Electric Dryer with Steam and Sensor Dry means: Voltage Too High on L1 or L2. The control board has detected that one or both power supply legs (L1 or L2) exceed the safe voltage limit. Nominal voltage is 120V per leg (240V total). If voltage consistently exceeds 132V per leg, the dryer electronics can be damaged. Measure voltage at the dryer outlet with a multimeter. If voltage is indeed high (above 130V), contact your power utility — this is a utility supply problem. If voltage is normal, the control board voltage sensing circuit may be faulty. Do not use the dryer until the voltage issue is resolved.

The most successful fix is "Replace Control Board Voltage Sensing Circuit" (hard difficulty, ~60 minutes). Estimated DIY cost: $50-$100. HomeMD has 2 community-ranked fixes for this error.

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Replace Control Board Voltage Sensing Circuit") is rated hard difficulty and takes about 60 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Needle-nose pliers.

DIY cost: $50-$100. Professional repair typically costs $200-$350. Many homeowners save money by trying the top-ranked community fix first.

The Electrolux ELFE7637AW 7.6 cu ft Electric Dryer with Steam and Sensor 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 EH3 also appears on 1 other Electrolux model: ELFE7637AT 7.4 cu ft Electric Dryer with Steam Refresh and Wrinkle Care. The fix may vary by model, so check each model's specific page for tailored repair steps.