Daikin codes

Daikin

% / run status

Status

Modulating run, not a fault

Display showing a firing percent or a run word is status.

Walk % / run status in Diagnose

Sign in for the next measurement

First check

1 Confirm this is not a fault

On the Daikin DM97MC this readout (% / run status) 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 treat a low percent as a lockout. The stat asked for that rate.
  • If it never leaves minimum, look at the call, the valve offset, and inducer prove — not a missing W2.

Plates that use % / run status