FieldBench
Rheem codes

Rheem

11 / 12 / 13

Lockout

Ignition / flame

11 failed ignition, 12 low flame sense, 13 flame lost. Same meanings as the two-stage Rheem IFCs.

Walk 11 / 12 / 13 in Diagnose

2 plates — walk the one on the cabinet

First check

1 Measure µA while it is running

Do not clean first and guess. Series-µA the rod on Rheem R98MV 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. HSI, gas, rod, ground, manifold at the commanded rate — a valve that will not come off minimum looks like 11/13.

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

  • HSI, gas, rod, ground, manifold at the commanded rate — a valve that will not come off minimum looks like 11/13.
  • Do not treat these as EcoNet comm codes.

Plates that use 11 / 12 / 13