Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Observation:

Inspect/verify combustion circuit seals are intact and not leaking products of combustion, an FGA will be required to confirm the integrity of all seals.
  • Burner gasket seal
  • Sump seal
  • Flue interface seals
  • Spark electrode gasket
  • Condensate connections/seals