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Posted by sid on March 02, 2005 at 21:04:23:
In Reply to: Re: boiler cold start mystery posted by Susan on February 26, 2005 at 15:25:22:
: : Susan,sounds like your thermocouple is going bad,when this happens the unit will keep trying to heat the thermocouple until it reaches full extention to keep pressure on main gas switch,if this is getting weak,it will just keep trying to fire until one of the times it works,it will fail completly soon.7 years is about there life time
: : Hope that helps
: : Manny
Some boilers have a low fire setting , as you say the boiler will not go in too high fire tell it has heated to a temp. or pressure . But if your service person cannot find the trouble it may be time to call in someone else