E225MEDIUM
Line Voltage Error
The control board detected incorrect line voltage, either too high or too low, affecting all furnace operations.
What This Error Code Means
Power supply voltage is outside the acceptable range for safe furnace operation.
Common Causes
- Utility power fluctuation
- Undersized electrical wiring
- Faulty transformer
- Loose electrical connections
- Overloaded electrical circuit
Affected Brands
LennoxCarrierTraneGoodmanRheemYorkBryant
How ROMA Heating Fixes This
- Measure incoming voltage at furnace
- Check all electrical connections
- Verify transformer output
- Recommend electrician if utility issue
- Install power monitor if needed
24/7 Emergency Service
Available nights, weekends, and holidays. Fast 1-2 hour response.
Licensed Technicians
TSBC Gas License LGA0202903. Fully insured and WCB covered.
Same-Day Service
We diagnose and fix error code issues quickly.