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Plumberpro
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
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My boiler is not staying fired up, it fires up then the flames

Resolved Question:

My boiler is not staying fired up, it fires up then the flames go out again after 1 second or so, then it fires up again and this process continues, we have no hot water
Submitted: 2 years ago.
Category: Plumbing
Expert:  Plumberpro replied 2 years ago.
Plumberpro :

Hi does it do the same for heating and hot water?

Customer:

It will not fire up without heating on

Plumberpro :

Hi . its a Combi?

Customer:

Yes biasi M90e 32s

Plumberpro :

Hi . your heating temperature sensor needs replacing . but replace the hot water one at the same time .

Customer:

They were changed about 1 month ago

Plumberpro :

Why? Same problem?

Plumberpro :

Does the heating work on its own?

Customer:

Yes same problem I think, the heating does work on its own but the burner is intermittent

Plumberpro :

Could be a couple of issues going on with it . can you give me a couple of mins to check the wiring diagram on the manual , thanks

Customer:

No problem, thanks

Plumberpro :

Ok . if you have changed the temp sensors then I think the hot water flow switch definitely needs changing. The intermittent burner could be weak fan , air pressure switch or flame sensing probe/ flame rectification probe. I think the way to go is to change the hot water flow switch . and flame rectification probe .

Plumberpro :

If they manual had a wiring diagram I could tell you where to test the hot water flow switch on the board. But if you have a multimeter you could probably test the flow switch on ohms . with hot tap off and hot tap running see if the switch is making .

Customer:

Ok, not sure now if the boiler is worth it, we have had it for 6 years I would have to get the repairs done, do you have any idea how much it will be around?

Plumberpro :

Probably about £250 ,£100 for parts, £ 150 labour , but it really depends who you get to do it. Its not a great boiler I'm afraid to say and when they start to go , they are a lot of trouble

Customer:

Are you based near the Manchester area?

Plumberpro :

I'm not , I'm just outside London I'm afraid .

Customer:

Ok I will call a local heating engineer, at least you have given me some information to pass on and hopefully I don't get ripped off.

Plumberpro :

Sometimes it pays to ask neighbours or local plumbers merchants for a someone with a good reputation , who they have used more than once and can do boiler repairs , instead of just installs

Customer:

Sure, thanks for your help.

Plumberpro :

Your welcome

Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience: Heating and plumbing answers. 20 years experience
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