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Re: furnace keeps going on even tho thermostat temp reached

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Re: furnace keeps going on even tho thermostat temp reached Stormin Mormon 10-03-2006
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Posted by Stormin Mormon on October 3, 2006, 8:23 am


The two things come to mind are bad thermostat, or a bad contactor
(relay) in the furnace. Couple years back, some friends of mine had a
furnace that would heat the house up into the 80s, and would not turn
off. They had replaced the thermostat four times, no joke. The problem
turned out to be a bad relay

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

hello to all you heating gurus:

we have just moved into a new house, and the furnace was working fine.
for some reason, this afternoon when i went upstairs to put my son
down
for a nap, the thermostat said it was 74. it was hot. it was set at
62.
i turned it down all the way, and i still heard the furnace kick in.

is there any simple explanation to this before i call the plumber??

any help would be appreciated. the furnace is quite old, about 25
years, but our inspector told us that it was fine.

jae



PexSupply Full Banner
Posted by Marilyn & Bob on October 3, 2006, 10:58 am



> hello to all you heating gurus:
>
> we have just moved into a new house, and the furnace was working fine.
> for some reason, this afternoon when i went upstairs to put my son
> down
> for a nap, the thermostat said it was 74. it was hot. it was set at
> 62.
> i turned it down all the way, and i still heard the furnace kick in.
>
> is there any simple explanation to this before i call the plumber??
>
> any help would be appreciated. the furnace is quite old, about 25
> years, but our inspector told us that it was fine.
>
> jae
>

Most of the answers so far assume that you have a separate hot water heater.
Is that true or does your boiler also supply domestic hot water?
--
Peace,
BobJ



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