B
Biggal5
Hi all, wondering if I can get some advice on a fault I had earlier...
Customers had a worcester 28Si combi installed at least 3yrs and all gong fine until recently. C/H system works fine and well, no problems.
When hot taps are turned on the indicator light shows an air flow fault on either air pressure switch, fan or flue? Within a minute of taps turned on fan cuts out for 5 mins. I've left the tap on continuously to see the results and after 5 mins the burner lights up again for 2 mins? then out for 5mins. works like clockwork with 2 mins on then out for 5 mins...
The fan works fine with c/h system on so i don't think the fan is faulty, also i've checked the air pressure switch and cleaned the hoses and also checked the flue for blockages but none there as far as I can see?
Any advice on what the problem could be please? Baffled as fault only on DHW system?
Many thanks in advance.
Customers had a worcester 28Si combi installed at least 3yrs and all gong fine until recently. C/H system works fine and well, no problems.
When hot taps are turned on the indicator light shows an air flow fault on either air pressure switch, fan or flue? Within a minute of taps turned on fan cuts out for 5 mins. I've left the tap on continuously to see the results and after 5 mins the burner lights up again for 2 mins? then out for 5mins. works like clockwork with 2 mins on then out for 5 mins...
The fan works fine with c/h system on so i don't think the fan is faulty, also i've checked the air pressure switch and cleaned the hoses and also checked the flue for blockages but none there as far as I can see?
Any advice on what the problem could be please? Baffled as fault only on DHW system?
Many thanks in advance.
