FieldBench
Trane codes

Trane

E5.x

Hazard

Unexpected flame / flame sense family (door-card confirm)

Flame-sense or unexpected-flame family. Confirm the exact decimal and OEM line on THIS S9V2 door card / service facts.

Walk E5.x in Diagnose

2 plates — walk the one on the cabinet

First check

1 Shut the gas cock first

On Trane S8V2 the rod sees flame with the valve de-energized. Shut the cock. If flame stays, the valve is leaking — replace it. Do not jump or energize it as a test. Unexpected flame: shut the cock. Leaking valve is a hazard — do not jump it.

Expect: Flame dies when the cock is shut.

If fail: Leaking valve. Replace. Do not leave the unit.

The rest of the walkthrough is Diagnose.

On the plates

  • Unexpected flame: shut the cock. Leaking valve is a hazard — do not jump it.
  • No / weak prove: rod µA, ground, nitride, valve 24 VAC during trial.
  • Do not map these to Amana E4/E6 or Carrier 22/34 by number.

Plates that use E5.x