Main 2 flashes red Fault Code

Also written as 2FLASHESRED — same fault.

The Main 2 flashes red fault code means: your boiler has switched itself off because it has become dangerously hot inside, likely due to a blockage in the water flow or a mechanical internal fault.. It appears on 1 Main model in our database.

Technical description: High temperature protection (Over-temperature thermostat on heat exchanger activated, No water flow through heat exchanger, Over-temperature thermostat fault or bad connection, PCB over-temperature condition, Flue fault)