FieldBench
York codes

York

Slow amber

Status

Normal, heat call

Heat sequence running.

Walk Slow amber in Diagnose

5 plates — walk the one on the cabinet

First check

1 Confirm this is not a fault

On the York TM8T this readout (Slow amber) 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

  • If burners are out while amber is slow, you caught it between trials or the fault has not latched yet. Stay and watch.
  • Amber is not ‘weak flame’ — that is rapid amber.
  • Stay and watch if burners are out.
  • Status, not a fault.

Plates that use Slow amber