FieldBench
Daikin codes

Daikin

E3

Protect

Open limit / rollout circuit

Primary, auxiliary, or rollout opened. ComfortNet bundles these on E3 — inspect rollout before you treat it as a dirty filter.

Walk E3 in Diagnose

4 plates — walk the one on the cabinet

First check

1 Treat this as flame outside the exchanger

Do not reset the Daikin DM80VC 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

  • Heat CFM in the IFC menu, not a tap.
  • Filter, coil, return, static.
  • Rollout portion: exchanger / burners / flue. Manual reset. Recurring rollout is hazard.
  • IFC heat CFM / modulating airflow table, not a tap and not DM96VC ‘high stage.’
  • Filter, coil, static. Rollout is still manual-reset hazard.

Plates that use E3

Same number, other makers

E3 on Daikin is not the same code on these plates.