Boiler cabinet is very hot to the touch, insulation may smell or discolor

Safety: Turn off power and allow the boiler to cool. Do not touch hot metal surfaces.

• Step 1 – Check clearances: Ensure the Triangle Tube boiler has the required clearances from walls and other equipment as specified in the manual.
• Step 2 – Inspect intake and exhaust: Verify that the intake is not blocked and that the boiler room has adequate ventilation if using room air.
• Step 3 – Internal inspection (professional): A technician should inspect the combustion chamber insulation and replace any missing or damaged panels, and clean the heat exchanger if fouled.