FieldBench
Goodman codes

Goodman

7 flash

Protect

Low flame

Weak µA.

Walk 7 flash in Diagnose

Sign in for the next measurement

First check

1 Measure µA while it is running

Do not clean first and guess. Series-µA the rod on Goodman GMSS96 during a call. Falling µA is oxide, ground, or a dying flame. A hard drop is often the pressure switch or limit opening, not the rod. Clean rod, chassis ground, manifold, LP conversion.

Expect: Typically ≥ 1.0 µA DC on this family — confirm the door card. Rising while running.

The rest of the walkthrough is Diagnose.

On the plates

  • Clean rod, chassis ground, manifold, LP conversion.

Plates that use 7 flash

Same number, other makers

7 flash on Goodman is not the same code on these plates.