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No hot water & no heating - but boiler is working!

 
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Waterworks



Joined: 14 Apr 2008
Posts: 2
Location: Hertfordshire
PostPosted: Mon Apr 14, 2008 11:18 am    Post subject: No hot water & no heating - but boiler is working! Reply with quote
Boiler, pump and diversion valve all work ok
Hot water not getting to radiators
There is water in the hot water tank
It seems there is no water or air in the radiators when the bleed valve is opened

What is wrong???

Hot water working through immersion.

Please help!!!!
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AlanE
Moderator


Joined: 29 Jun 2003
Posts: 1305
Location: Colchester Essex
PostPosted: Mon Apr 14, 2008 11:38 am    Post subject: Reply with quote
Quote:
What is wrong???

That is an excellent question but impossible to answer with the information supplied!!

Boiler, pump and diversion valve all work ok
In which case where is the heat going to?

It seems there is no water or air in the radiators when the bleed valve is opened
What does happen if you open a bleed valve?

Need
Type of system - Sealed/open vented
How long does boiler run for
Make model of boiler

If system is open vented I would be thinking blocked cold feed, but that is reall just guesswork at this time.
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Waterworks



Joined: 14 Apr 2008
Posts: 2
Location: Hertfordshire
PostPosted: Mon Apr 14, 2008 1:42 pm    Post subject: Diverter Valve Reply with quote
The pipes get hot up to the valve but are cold from the other end of the cylinder coil. Could it be a blockage at the diverter valve?

Type of system - Sealed/open vented -- open vented
How long does boiler run for – about a minute
Make model of boiler – don’t know (will find out!)
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AlanE
Moderator


Joined: 29 Jun 2003
Posts: 1305
Location: Colchester Essex
PostPosted: Mon Apr 14, 2008 4:17 pm    Post subject: Reply with quote
Try draining some water out of the system then check if the F&E tank level drops. If it doesn't there is probably a blockage in the cold feed.

Boiler is only operating to heat water in the pipes. You have little or no circulation.
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