FieldBench
Rheem codes

Rheem

0 / blank

Status

Standby

No call. Info, not a fault.

Walk 0 / blank in Diagnose

2 plates — walk the one on the cabinet

First check

1 Confirm this is not a fault

On the Rheem R951T this readout (0 / blank) 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

  • Not a lockout. Confirm W1 at the IFC if the house is cold.

Plates that use 0 / blank