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Old 05-23-2015, 11:47 AM   #1
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Furnace quit HELP

Second night in the new camper and the Suburban furnace quit working. Brand new trailer worked fine 1st night 2nd night temperature dropped to 29 C turn the thermostat up and no heat nothing worked. So checked propane full checked power to furnace good everything else seams to be working fine. Then checked thermostat the fuse was blown . Didn't have that one to replace it it was a small one. So knowing I shouldn't do it I jumped the fuse and it kicked the furnace on .now here's the situation midnight temp dropping in the high twenty's .So I did It put tin foil in and jumped the fuse. I KNOW THAT'S A BIG NO NO! but under the circumstances I chose to have heat (Don't forget about DW don't want her cold) . So I let the furnace cycle a few times and it seemed to be fine till next day to get new fuse. Went to bed. Woke up 1 hour later cold .furnace don't work. any help would be appreciated thanks.
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Old 05-26-2015, 10:03 PM   #2
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No one has any suggestions? Dealer is 4 weeks out on appointments. Though it might be something simple like a fuse in the furnace or something . Also how can I tell if the T-stat is working or why the fuse blew in the first place
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Old 05-26-2015, 10:11 PM   #3
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Make and model of furnace?

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Old 05-26-2015, 10:39 PM   #4
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Sorry Its a suburban SF 30 F furnace and a Colman Mach t-stat
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Old 05-26-2015, 10:52 PM   #5
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Your Trailer is brand new, waiting 4 weeks is ludicrous. Maybe a call to Forest River, explain the situation and get a mobile guy to come by and fix it.

I lay odds if it did work at first the fuse bypass trick caused something else to open up. My money is on the thermostat itself. The coleman has a heat anticipator, at least mine does, this is a piece of wire that heats up and moves the spring to stop operation of the mercury switch.

Thread on replacement of thermostat with a digital

Analog Coleman Mach Thermostat
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Old 05-26-2015, 10:56 PM   #6
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Both of those have very good troubleshooting guides on there respective websites.

https://www.google.com/url?sa=t&sour...5oMEBvtAQVKMGg

https://www.google.com/url?sa=t&sour...AWD2H77VX44Kww

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Old 05-26-2015, 11:11 PM   #7
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Is there any way to test the thermostat
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Old 05-27-2015, 01:33 PM   #8
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Does anyone know what two wires to cross to bypass the thermostat to start 2 furnace
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Old 05-27-2015, 08:12 PM   #9
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Quote:
Originally Posted by B and B View Post
Your Trailer is brand new, waiting 4 weeks is ludicrous. Maybe a call to Forest River, explain the situation and get a mobile guy to come by and fix it.

I lay odds if it did work at first the fuse bypass trick caused something else to open up. My money is on the thermostat itself. The coleman has a heat anticipator, at least mine does, this is a piece of wire that heats up and moves the spring to stop operation of the mercury switch.

Thread on replacement of thermostat with a digital

Analog Coleman Mach Thermostat
Well you were right I jumped the red and the white wire and the furnace worked perfect so I am replacing it with a digital Colman Mach replacement Thankyou
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