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Furnace is not turning on

We have a intertherm 14 year old propane furnace.In the summer when it was like 90 degrees outside the blower turned on and would not shut off,so i turned of the breaker to it.Since then we have used the furnace with no problems untill recently.We did not use the furnace for a short time due to money issues so we turned the thermostate down. When we went to use the furnace again we turned up the thermostat but it did not turn on like usual.The pilot is lit and the furnace hums like usual but the blower does not turn on like before.We were told it was the thermal coupler so we bought a new one and had it put in,but still did not work.Do you have any suggestions.We are very low on funds so any help would be great.I have been taking advantage before payed almost 400 dollars to a professional to come to my house with a different furnace to fix it.Did this and did that and then found out through someone the heat exchanged was cracked needed a new furnace and could have killed my family.

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If you have fuse in your furnace check the fuses if some of them got busted.
If your filter is too dirty, it could cause your "fuse" to blow up because
the fan is having hard time to **** air into it. Therefore the fuse will
overload and will burn. I have a problem (won't turn on) with my furnace just two ago.
I thought my thermostat had a problem, so I bought a new one and
replaced the old one. After reading some of the solutions here I found
out that I can remove the cover infront of the thermostat, so i checked
and pryed out the front cover and found a small door where all the electrical
connections were and the 4 fuses in it. That's where i found the fuses
and replaced the two burned ones. When checking the fuses,make sure
you turn off the furnace breaker, to avoid getting injury or electrecuted. I bought
4 new fuses to Lowe's hardware and stalled the new fuses. I solved my problem,
now my furnace heater is working.

Posted on Mar 16, 2009

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Sounds like you have a bad fan limit. they will sometimes kick on in the summer when the temp gets high enough. now it sounds like it is not working at all. it is usually mounted with a metal square cover over it removing the cover would expose the dial this it what turns as the furnace heats up and kicks on the fan . turning it by hand will check to see if fan will kick on(turn a lttle clockwise)

Posted on Jan 10, 2009

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Posted on Jan 02, 2017

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