Goodman GMVM970803BN Error Code E7: Igniter Fault

What Does Code E7 Mean?

An E7 code on the Goodman GMVM970803BN indicates a problem with the hot surface igniter circuit. The hot surface igniter is the component that heats to red-hot temperatures to ignite the gas burners at the start of each heating cycle. The integrated control module monitors the igniter circuit during the pre-ignition sequence, and if it detects an abnormal condition, it will not open the gas valve. This prevents gas from flowing when the furnace cannot reliably light it.

The most common cause is a failed or shorted hot surface igniter. These igniter elements — made from silicon carbide or silicon nitride — are fragile and can crack from age, thermal cycling, or physical shock. A cracked igniter may short internally, drawing excessive current that the control board detects as an E7 fault. Loose or disconnected wiring between the control board and the igniter terminal is another frequent cause. In some cases, the igniter relay on the integrated control module itself has failed, meaning the board cannot properly energize the igniter even if the element itself is intact. Improper furnace grounding can also trigger this code.

A qualified HVAC technician will need to test the igniter's resistance with a multimeter, inspect wiring connections between the control board and igniter, verify proper furnace grounding, and check the control board's igniter output. If the igniter element has failed, it must be replaced with the correct type for this model.

Common Causes

When to Call a Professional

Contact a licensed HVAC technician if:

• Call a technician to test the igniter resistance and inspect wiring — a shorted or cracked igniter must be replaced with the correct model-specific part
• If the igniter tests good, the technician should check furnace grounding and the igniter relay on the control board, as a faulty control module may require replacement

✓ Verified against manufacturer service manual — March 2026