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https://oldsite.omegaowners.com/forum/YaBB.pl Chat >> General Discussion Area >> Combi Boiler help needed. https://oldsite.omegaowners.com/forum/YaBB.pl?num=1261524044 Message started by Cumbria on 22. Dec 2009 at 23:20

Title: Combi Boiler help needed.
Post by Cumbria on 22. Dec 2009 at 23:20

When i turn hot water tap on boiler doesnt fire up. Checked water pressure and thats ok Also centrel heating working ok. Any ideas what could be wrong. Thanks.

Title: Re: Combi Boiler help needed.
Post by Andy B on 22. Dec 2009 at 23:23

Cumbria wrote on 22. Dec 2009 at 23:20:

When i turn hot water tap on boiler doesnt fire up. Checked water pressure and thats ok Also centrel heating working ok. Any ideas what could be wrong. Thanks.

Isn't there a flow switch somewhere in a combi boiler set up?

Title: Re: Combi Boiler help needed.
Post by Nickbat on 22. Dec 2009 at 23:31

Cumbria wrote on 22. Dec 2009 at 23:20:

When i turn hot water tap on boiler doesnt fire up. Checked water pressure and thats ok Also centrel heating working ok. Any ideas what could be wrong. Thanks.

Had the same problem myself a few weeks back. Changed the diaphragm...job's a good 'un! :y :y
Read all about it here:

http://www.omegaowners.com/forum/YaBB.pl?num=1258299263/0

Title: Re: Combi Boiler help needed.
Post by 000jonboy on 22. Dec 2009 at 23:33

sounds like it is the diapram split the fow switch is in front of it. What make is the boiler might be able to help diaganose the prob ::) :y

Title: Re: Combi Boiler help needed.
Post by Cumbria on 22. Dec 2009 at 23:42

Boiler make Ariston. Cant find a model number though. Also lost instruction booklet.

Title: Re: Combi Boiler help needed.
Post by 000jonboy on 22. Dec 2009 at 23:52

how old is it ? but it will be the dipharm or hot water sensor also kown as a thermistor :y

Title: Re: Combi Boiler help needed.
Post by Cumbria on 22. Dec 2009 at 23:58

Not sure how old only moved in in May. Every thing was working fine untill this cold spell.

Title: Re: Combi Boiler help needed.
Post by sparkyw666. on 23. Dec 2009 at 01:38

Cumbria wrote on 22. Dec 2009 at 23:20:

When i turn hot water tap on boiler doesnt fire up. Checked water pressure and thats ok Also centrel heating working ok. Any ideas what could be wrong. Thanks.

if u put the heating on u should get hot water mine did that and worked that way till it got fixed:-)

Title: Re: Combi Boiler help needed.
Post by mark mv6 on 23. Dec 2009 at 14:58

Either flow switch,diverter valve or heat exchanger,and if its the heat ex,maybe cheaper in the long run to scrap the boiler,especially if its an old one. :y

Title: Re: Combi Boiler help needed.
Post by Marks DTM Calib on 23. Dec 2009 at 20:33

If its a combi then its probably the pressure diapram in the flow switch

Title: Re: Combi Boiler help needed.
Post by Cumbria on 23. Dec 2009 at 22:32

Got someone coming out tomorow. Hope there in the Christmas spirit & settle for a mince pie & a few cans. Had to get a new washing machine a couple of weeks ago. Everything seems to go wrong this time of year.