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E

eljay

I have a Glow Worm Fuelsaver Mk2 model 40B boiler that is probably the best part of 20 years old. It has a delay in firing up. When I switch it on or when the timer clicks in, I can hear the pump open upstairs and hear the usual clicking and sounds in the boiler but then it takes four minutes until it fires up. Once the flame has fired it works perfectly normal. A month ago I assisted a friend to install two new radiators at my house and this was done on two consecutive weekends which meant draining and refilling the system twice. The problem has only happened since then. I am having difficulty locating a manual for this boiler as it is discontinued and I can't find any Gas Council Number in the unit although it has been suggested that it could be a 41 313 78 but this relates to a Fuelsaver 40R which makes matters more confusing. Could anyone advise on what this problem could be. It is not a major issue as everything is fine once fired up but I was wondering if it may leak any gas within the four minute delay and if this delay may get longer. Any help would be of great value to me.
Thanks
 
Is there power to the gas valve during the time lag?

If not, you may have to trace it back until you find some. Could be electrical rather than valve.
 

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