Goodman EA Error Code: Reversed 115 volt polarity
Updated October 2026 · Sourced from Goodman documentation
🛑 Turn it off and call a licensed pro
The polarity of the 115 volt power to the furnace or control is reversed. The manual also lists a poor furnace ground as a possible cause.
Is it safe to keep running? No. Turn it off and get it checked. Turn the furnace off at the breaker and call a licensed electrician or HVAC technician. Reversed polarity and grounding are wiring faults.
EA at a glance
| Code / how it shows | Meaning | Applies to |
|---|---|---|
| EA Also: EEA Three-digit 7-segment display shows EEA | Reversed 115 volt polarity | Goodman GMVC96 / Amana AMVC96 / GCVC96 / ACVC96 34.5-inch chassis two-stage gas furnaces |
🛑 Stop and call a licensed pro if
- Turn the furnace off at the breaker and call a licensed electrician or HVAC technician. Reversed polarity and grounding are wiring faults.
- You smell gas. Leave the house, do not touch switches, and call your gas utility from outside.
- Flame rollout, limit or pressure switch codes that come back after one reset.
- Anything involving the control board, gas valve, flame sensor, igniter or venting.
- A carbon monoxide alarm sounds. Get everyone outside and call 911 or the fire department.
Safe first steps for any Goodman code
- Count the LED flashes through the blower door window before you switch anything off. Cutting power can clear the code.
- Replace or clean the furnace air filter.
- Check the thermostat: correct mode, set above room temperature, and fresh batteries.
- Make sure the furnace power switch and breaker are on. If the furnace has locked out, turning the power off and back on once restarts it.
- Make sure the gas valve is in the ON position, following the lighting instructions on the furnace label only.
- On high-efficiency furnaces, look at the outside vent and intake pipes for snow, ice, leaves or nests (look only, do not take pipes apart).
Source: Goodman 34.5 in. Chassis ACVC96/AMVC96/GCVC96/GMVC96 Service and Troubleshooting RS6612023R2, p.44. Codes are series-specific, so your unit's own manual is the final word. Reviewed October 2026.
Shaun Cain · Certified HVAC & Refrigeration Technician · Ask an HVAC technician
Related Goodman codes
E0 : Lockout after three failed ignition attemptsE1 : Low-stage pressure switch closed at start of heatingE2 : Low-stage pressure switch circuit openE3 : Primary limit circuit open (furnace overheating)E4 : Flame sensed with no call for heatE5 : Open fuse on the controlE6 : Weak flame sense signalE7 : Problem with igniter circuitE8 : High-stage pressure switch closed at start of heatingE9 : High-stage pressure switch circuit openEb : External gas valve error (valve not energized)EC : Internal gas valve error (valve energized when it should not be)