hi, I am having problems with my boiler, the glowworm 30 cxi its approx 7 years old we had a power cut as a result by boiler packed up, initially showing a f13 code, after leaving it shut down for a day or two i restarted it and it started up ok so then I went and turned the hot tap on and the boiler kicked in and heated the water ok, so i turned the hot tap off and as I did, it gave me the f13 again, and would not produce any more hot water after that, so I left it a few hours maybe to cool down as I thought and haypresto it worked and turned on an gave me hot water again, but did exactly the same thing again , once the hot tap was turned off it shutdown and gave a f13, can anyone help please,cheers jd.
30 cxi glowork boiler
- Thread starter ginger100
- Start date
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pcb or loose connection into pcb
Paul
Paul
Yes I can help, It's got an F13 fault.
And just ignore all the numpties on here that will advise you to start opening up the boiler, get a gas engineer.
thankyou mr gasright, most helpful, its so refreshing to know there are people out there willing to help a fellow tradesman with anothers expertise,cheers jd
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What kind of tradesman are you?
a poor lowly bricklayer
Loose connection have you had it open and forgot to reconnect wires....if not since its ok when cold then check thermistors around 10k ohms at 25 degrees....then as temp goes up the resistance goes down.....is you ch ok no warning lights all rads heat up....
ok colin will have a go at that, thanks for the reply,cheers jd.
hi colin, out of frustration I decided to replace the main pcb, now the boiler works as it should, with no issues with the hot water or the ch system, so do you think my problem was the pcb and nothing else, cheers jd.
Probably relay on pcb had packed up....since your boiler was working when cold and not working when warm was thinking thermistor might have packed in but obviously if the thermistor checked out ok then the last resort would be pcb....glad its sorted
yep,cheers colin for your help, the wife was doin my head in, now shes as snug as a bug 
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