FieldBench
ICP codes

ICP

13

Lockout

Limit lockout

Limit/rollout stayed open. Auto-reset ~3 h. Hardened 33.

Walk 13 in Diagnose

3 plates — walk the one on the cabinet

First check

1 Treat this as flame outside the exchanger

Do not reset the ICP N80ESN rollout and walk away. Write the code, kill the call, and look for flame at the burners, crossover, and vestibule before you do anything else.

Expect: No flame outside the exchanger. Burners seated. Crossover lit.

If pass: Still inspect secondary / flue / condensate before you reset.

The rest of the walkthrough is Diagnose.

On the plates

  • Treat as a 33 that won. Filter, heat tap, coil, return, rollout reset.
  • Do not sit on 3-hour resets.

Plates that use 13

Same number, other makers

13 on ICP is not the same code on these plates.