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Old 03-03-2013, 06:13 PM   #1
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No Heat!

So, in the middle of the night, the furnace kicked off and would only blow cool air. Propane tank was near full, so it wasn't that. Any ideas?
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Old 03-03-2013, 06:18 PM   #2
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How cold was it outside?
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Old 03-03-2013, 06:42 PM   #3
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45 or so, Had the same problem during the day close to 55 out
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Old 03-03-2013, 07:27 PM   #4
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How is the flame on the stove? I know you said the tank was near full. How long have you been running the furnace on the full tank? A 20# tank will last 3 to 4 nights when running the furnace.
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Old 03-03-2013, 07:34 PM   #5
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Just for kicks and whistles......... turn tank completely off then slowly re-open tank valve.
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Old 03-03-2013, 07:55 PM   #6
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Quote:
Originally Posted by caper View Post
How is the flame on the stove? I know you said the tank was near full. How long have you been running the furnace on the full tank? A 20# tank will last 3 to 4 nights when running the furnace.
stove fame is strong as ever, the fridge pilot was on and keeping everything cool. the tank was filled before I left and the furnace kapooted mid way through the first night.
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Old 03-03-2013, 07:58 PM   #7
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Originally Posted by f1100turbo View Post
Just for kicks and whistles......... turn tank completely off then slowly re-open tank valve.
I will give it a shot, but don't understand what that would accomplish if propane is going to the other appliances as it should be
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Old 03-03-2013, 07:59 PM   #8
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Are you in hookups?

Furnace requires a STRONG battery to run. Low voltage may not spin the fan hard enough to close the sail switch. Charge up your battery and try again.

Let me know if you are in hookups.
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Old 03-03-2013, 08:20 PM   #9
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Are you in hookups?

Furnace requires a STRONG battery to run. Low voltage may not spin the fan hard enough to close the sail switch. Charge up your battery and try again.

Let me know if you are in hookups.
Batt. was at near full charge, pushed by two Trojan 6V...same issue when I hooked up the generator. im really thinking it is an internal furnace issue, a switch of some sort or an igniter. anyone had a similar issue and a result that I can look at.

Great talk, thank for the hint, keep em comming
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Old 03-03-2013, 08:35 PM   #10
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Maybe a bad sail switch, if the switch went bad the unit will shut down because this is what proves air flow, and or photo cell, if the photo cell can not see the flame because either bad or dirty it will shut the gas valve down and will not start back up....
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