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Mend Alpha CB28 Boiler Central Heating Hot Water

Alpha cb28 boiler. Hot water is fine but central heating isn't working?

Just attempted to start using central heating again after summer and it isn't working. Combi Alpha CB28 boiler and the water is heating absolutely fine, but no central heating- any suggestions??

Isla
September 2007
AlphaAlpha CB28Heating, Home Heating SystemsBoiler Central Heating Hot Water
boiler flame keeps turnig off and back on every 1 minuter

bob
September 2010
Hello!
My Boiler has stopped working. no lights or hot water or heating. Its an Alpha CB 28?

Any ideas?

lot
November 2009
Can't answer this and I really need to know how to get the CH working, I've just moved into a flat with this boiler. Hot water's fine but no CH. it's bl**dy freezing, help!!

Dave
December 2007
Hello !
Just check your room thermostat, batteries, exact time , temperature setting high enough ?
Switch the room thermostat on and with the help of a screwdriver listen to the pump if the motor is making the right noise ! sept 17 2007.
Thanks for the feedback when fixed ?
ps: no diverter valve on this model nor diaphragm !

JPh
September 2007
can you advise how to check the diverter valve?
Thanks - Isla

Isla
September 2007
check timer, room stat,diverter valve

kris
September 2007

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Alpha CB28 Boiler: No Central Heating