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Alpha CB33 Combi Condenser not firing, but fan constantly running?

My Alpha HE CB33 has been making a few loud noises recently, then blew the internal 2amp fuse. This was replaced, but now the boiler won't fire (no hot water ot CH), but the fan constantly runs. Any idea's?

Sean
January 2009

Heating, Home Heating Systems Combi Fan Running

I had the same problem. Fitted a new PCB (£309) and it was fine for a month. Just today started doing it again. Trips straight away when I run the hot water and takes a little more time when just the heating is on. STRESS!

Claire Simmons
February 2011

I am having the exact same problem - what was your outcome?

Fiona
February 2009

you need new pcb and maybe pump

peter
January 2009

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Alpha CB33 Combi Condenser not firing, but fan constantly running?

Alpha CB33 Combi Condenser not firing, but fan constantly running?

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Alpha CB33 Combi Condenser not firing, but fan constantly running?

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Worcester boiler dripping water?

Vaillant ecotec 831 plus?

Remove boiler cover?

Siemens RDJ10RF thermostat problem?

Boiler cycle?