FieldBench
Goodman codes

Goodman

E4

Hazard

Flame when valve should be off

Rod sees flame with both solenoids de-energized.

Walk E4 in Diagnose

9 plates — walk the one on the cabinet

First check

1 Shut the gas cock first

On Goodman GMEC96 the rod sees flame with the valve de-energized. Shut the cock. If flame stays, the valve is leaking — replace it. Do not jump or energize it as a test. Shut the gas cock. Leaking valve — replace, do not jump.

Expect: Flame dies when the cock is shut.

If fail: Leaking valve. Replace. Do not leave the unit.

The rest of the walkthrough is Diagnose.

On the plates

  • Shut the gas cock. If flame stays, leaking valve — replace, do not jump.
  • Rod shorted to ground or IFC flame circuit.
  • Shut the gas cock. Leaking valve — replace, do not jump.
  • Shut the gas cock. If flame stays, leaking modulator — replace, do not drive it as a test.
  • Treat as a hazard until the valve is proven closed.

Plates that use E4

Same number, other makers

E4 on Goodman is not the same code on these plates.