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Andrew Smith
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3633
Experience:  Gas cooker specialist
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I recently had a glow worm boiler installed - about 4 weeks

Customer Question

Hello there ! I recently had a glow worm boiler installed - about 4 weeks ago ! - It has stopped 'firing up' and I have no heating or hot water !. There is a code flashing up F28 !
the booklet supplied says to press reset button a maximum of 3 times which I have done but still it will not work! F 28 is still flashing !. Company that installed it is closed until the morning , can you help please .
Submitted: 11 months ago.
Category: Appliance
Expert:  Andrew Smith replied 11 months ago.

Can you confirm the gas is still on?

Has anything been turned off under the boiler?

Customer: replied 11 months ago.
Nothing has been touched ! gas is on and all ok - one minute I was using hot water the next minute everything stopped and the symbol F28 came up!.
Expert:  Andrew Smith replied 11 months ago.

ok, do you have the full model details?

Customer: replied 11 months ago.
On the front of the Glow-worm book they gave me is: Installation manual for Air/flue gas system for ENERGY, SUSTAIN, HOME, ULTIMATE, EASICOM, ESSENTIAL
Customer: replied 11 months ago.
Also on the front of the boiler is GLO WORM - 25c if that is any help!.
Expert:  Andrew Smith replied 11 months ago.

25c, ok is there anything else written on the boiler?

Customer: replied 11 months ago.
No nothing !!
Expert:  Andrew Smith replied 11 months ago.

ok, it could be anything to do with the gas, or anything to do with the ignition.

It is failing to light.

With it only being in for 4 weeks the manufacturer will come out free of charge tomorrow if you ring them in the morning, but without a multimeter and standing in front of it there is not much else i can do.

Expert:  Andrew Smith replied 11 months ago.

It could be a loose connection inside the boiler preventing it sparking, or it could be a faulty part

Expert:  Andrew Smith replied 11 months ago.

Sorry

Expert:  Andrew Smith replied 11 months ago.

https://www.glow-worm.co.uk/trade/service/log-a-service-call/index.en_gb.html

Customer: replied 11 months ago.
OK thank you.
Expert:  Andrew Smith replied 11 months ago.

Did you get this sorted?

Customer: replied 11 months ago.
Almost ! - the manufacturers are coming tomorrow to sort it out, Thank You.
Expert:  Andrew Smith replied 11 months ago.

No problem, it will be interesting to find out the problem

Customer: replied 11 months ago.
Will try and let you know !
Customer: replied 11 months ago.
Man has just been - he said the gas wasn't firing up strongly enough !!
Expert:  Andrew Smith replied 11 months ago.

Was he an expert?

Did he check the gas pressure to the gas valve or the burner?