Goodman codes

Goodman

1 flash

Lockout

Retry lockout

Ignition retries exceeded on this call.

Walk 1 flash in Diagnose

Sign in for the next measurement

First check

1 Watch one full try — do not reset

Write the Goodman GMSS96 code. Watch inducer, HSI glow, valve click, flame, µA. The step that dies is the repair. Resetting only burns another try into a harder lockout. Watch a try: inducer, HSI, valve, flame.

Expect: W → No W2 path

The rest of the walkthrough is Diagnose.

On the plates

  • Watch a try: inducer, HSI, valve, flame.
  • Gas, rod, ground. Do not keep resetting.

Plates that use 1 flash

Same number, other makers

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