FieldBench
Goodman codes

Goodman

En

Lockout

Igniter open

Igniter circuit measures open.

Walk En in Diagnose

3 plates — walk the one on the cabinet

First check

1 Ohms at the igniter, then at the IFC

On Goodman GR9S80 measure cold ohms at the igniter plug, then at the IFC connector. An open at the plug is the element or local harness. Open only at the IFC is the harness rub-through on the collector. Ohms at the igniter plug, then at the IFC.

Expect: HSI: Hot-surface igniter per SS — not the AR9S96 nitride sticker. 120 VAC during warm-up.

The rest of the walkthrough is Diagnose.

On the plates

  • Ohms at the igniter plug, then at the IFC.
  • Harness rub-through on the collector.
  • Harness rub-through.

Plates that use En

Same number, other makers

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