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ferroli f24 domi compact f37 flashing


 
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coopegas83

from United Kingdom

Joined: 30 Aug 2009
Posts: 21
Location: Birmingham,
United Kingdom

PostPosted: Mon Feb 21, 2011 7:01 pm Reply with quote

hi guys install boiler about 2years ago, customer rang to say f37 flashing which is low water pressure i have reset boiler and away it went call back to say constantly having to reset boiler. i installed new pressure switch to eliminate and also water in system clean i am now unsure as to what i do next as it is still throwing up f37 icon_mad.gif any suggestions would be greatly appreciated
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compheat

from United Kingdom

Joined: 22 Nov 2005
Posts: 1922
Location: Lancashire,
United Kingdom
Thanked: 322 times

PostPosted: Mon Feb 21, 2011 7:28 pm Reply with quote

I had the same thing last week, boiler losing pressure but no sign of any leaks
It was the secondary heat exchanger/recuporater which leaks internally and the water goes down the condense drain.

Ferroli quoted me 285+vat making it 342 for the part.

This boiler is a load of Cr#p
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ecowarrior

from United Kingdom

Joined: 21 May 2010
Posts: 8639
Location: Northamptonshire,
United Kingdom
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PostPosted: Mon Feb 21, 2011 7:32 pm Reply with quote

Common fault mate do about 5-6 a year. they do come up on ebay but usually 2nd hand boilers are sold because of this issue. Same one fits all so that helps a bit
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coopegas83

from United Kingdom

Joined: 30 Aug 2009
Posts: 21
Location: Birmingham,
United Kingdom

PostPosted: Mon Feb 21, 2011 9:25 pm Reply with quote

in this case the boiler isnt losing pressure the customer or myself have not had to top the boiler up at all
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ecowarrior

from United Kingdom

Joined: 21 May 2010
Posts: 8639
Location: Northamptonshire,
United Kingdom
Thanked: 2302 times

PostPosted: Mon Feb 21, 2011 10:57 pm Reply with quote

Look at blocked press gauge. Whist drained down check expn vess. charge to 1 bar. There are no parameters to check press electronically. Give gauge good rodding & look inside pump housing where it fits (not easy if u have the one that comes out the back) This area does sludge up. If the switch is doing its thing at (I think .8bar) the gauge may b reading 1.5 and looking good when its not. So it looks OK at 1.5 but its really kicking out at just below .8 and kicking in at .9. but the gauge is moving from 1.5 - 1.6?
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