Alpha 240XP hot water issue

[Falky]

Having a problem with my hot water coming from my Alpha 240XP combi boiler. At times it works fine, no issues, but recently it has been providing hot water for about 1 minute, then going cold for ~30 secs / 1 min, then it normally heats backup again. Yesterday, it stayed cold for 5+ mins (at which point i just bit the bullet and had a cold shower). Radiators appear to be working fine, but this hot water problem happens without the heating being on. Does anyone have any advice on this, as my knowledge of boilers is less than minimal. Thanks, Andy

 

[Agile]

The first thing to check is that the diverter valve is operating reliably.

Do a few searches and you should find many posts advising you what to do.

Tony

 

[mercer2773]

I had a simular problem with my Alpha 240 eco combi boiler, it turned out to be the fan was a bit clogged which affected the air pressure switch . i'm not saying this is your problem but it might be something else to check

 

[gas4you]

Sounds like the classic plate HE blocked on the system side

 

[Agile]

It will not be the plate blocked as he says sometime its works fine.

Its either the diverter valve demand switch dropping out or a gas/safety problem.

He can check the diverter valve but the other cause will need a competent gas engineer.

Tony

 

[fanboy]

Check the operation ofn the pin that makes the microswitch for your hot water, and make sure the hot water diaphragm is intact.

 

[gas4you]

It will not be the plate blocked as he says sometime its works fine.

He states the radiators are working fine, not the hot water.

Lost your glasses Tony

 

[Agile]

Having a problem with my hot water coming from my Alpha 240XP combi boiler. At times it works fine, no issues, but recently it has been providing hot water for about 1 minute, then going cold for ~30 secs / 1 min, then it normally heats backup again. Thanks, Andy

I dont interpret it that way Dave!

It seems to me that sometimes it cycles and at other times it work fine.

See you tonight!

Tony