Question about Heaters
My boiler has been working fine for a few years, recently it does not shut off form some reason and I have to do it manually I was hoping it was the thermostat but I bought this one last year. It might be the wiring I dont know. Help!! Dan
Boiler does not shut off when thermostat reaches temp, i already replaced aquastat but condition still exists
Posted on Nov 19, 2008
Why does my boiler not shut off with time clock
Posted on Jan 04, 2010
Boilers are controlled by a few things, one being a thermostat, secondly a zone valve or circulator control and thirdly by an Aquastat that controls the boiler temperature and safety shutoff. If one of those controls is sticking, your boiler will turn or remain on until it reached a temperature where the safety control shuts it off. If your boiler is not shutting off at all, most likely it is the Aquastat control. The Aquastat will be located on the boiler and may have "Honeywell" printed or stamped on it. Take off the front cover and you will find model numbers on the backside of the cover. If you have some mechanical skills, you could probably replace it. Turn off your power first and wire it wire per wire.
If your boiler is shutting off on high limit, I would suspect a stuck zone valve or circulator control or a bad thermostat or shorted thermostat wire.
Posted on Nov 15, 2007
The boiler just wont stop leakin how do i shut it off
Posted on Dec 19, 2008
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