FieldBench
Goodman codes

Goodman

idle / Ht1 / Ht2 / CF / CL1 / CL2

Status

Status, not a fault

Normal run states on the triple display. idle = standby. Ht1 / Ht2 = low / high heat. CF = continuous fan. CL1 / CL2 = cooling stage.

Walk idle / Ht1 / Ht2 / CF / CL1 / CL2 in Diagnose

2 plates — walk the one on the cabinet

First check

1 Confirm this is not a fault

On the Goodman GMVC80 this readout (idle / Ht1 / Ht2 / CF / CL1 / CL2) is run status, not a lockout. Write what the display actually shows and whether W/Y/G is present at the IFC.

Expect: Idle / Ht / CF / stage+CFM words change when you apply and remove the call.

If fail: If the word never changes on a real call, the call is not reaching this IFC.

If pass: The board is alive. Diagnose the comfort complaint, not this code.

The rest of the walkthrough is Diagnose.

On the plates

  • Do not replace the board because it says Ht1 or CF.
  • CF is continuous-fan CFM, not a capacitor.
  • Ht1 forever with a high-fire request → staging / E8–E9 path, not a ‘bad Ht1 code.’

Plates that use idle / Ht1 / Ht2 / CF / CL1 / CL2

Same number, other makers

idle / Ht1 / Ht2 / CF / CL1 / CL2 on Goodman is not the same code on these plates.