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Old 06-16-2017, 12:10 AM   #1
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Brand: Thor Motor Coach
Model: Freedom Elite
State: Oklahoma
Posts: 34
THOR #7244
Furnace won't light

Camping in the Rocky Mountains near Black Hawk, CO and the darn furnace won't light. The blower comes on and you hear it trying to ignite but it won't. Plenty of propane as the stove works, no wasps nests in the compartment, everything looks ok. Wondering about the house batteries? Coach only has 2900 miles on it. We used it in the past and it just about ran us out it worked so well. Gets down to the low 40's at night an a little heat would feel good! Looking for suggestions.
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Old 06-16-2017, 12:24 AM   #2
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Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 2,202
THOR #7035
Spider webs near the igniter? Somebody turned the gas off at the furnace? The valve is a ball valve with a screwdriver head. The slot should be inline with the gas line.
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Old 06-19-2017, 11:49 AM   #3
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Brand: Thor Motor Coach
Model: Miramar 34.4
State: Virginia
Posts: 132
THOR #5560
I have had the same issue with the furnace on my Miramar. It seems to be an intermittent problem because when I go to troubleshoot, it works fine. Have had the dealership look at it but they cannot recreate the fault.
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Old 06-21-2017, 12:34 AM   #4
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Brand: Thor Motor Coach
Model: hurricane 29m
State: Arkansas
Posts: 70
THOR #7095
my last coach and current (thor hurricane 29m) have both had issues starting the propane water heater and propane furnace, water heater worse than furnace after storage periods in between trips. My remedy is to light the gas stove top burners, usually all 3 and let burn for approx 1 minute then while stove top still burning turn on the other appliance (water heater or furnace) they light immediately and the process doesn't need repeated until after another storage.
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Old 06-21-2017, 12:37 AM   #5
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Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,593
THOR #5196
I to have the same problem if the coach had been sitting for a while, takes time to purge air out of the lines.
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Old 06-21-2017, 02:10 AM   #6
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Brand: Thor Motor Coach
Model: 30.1
State: North Carolina
Posts: 320
THOR #3952
There have been some issues with water getting into the furnace from a vent installed improperly in the access door. Seems the vents were pointed the wrong way letting water in. Check to see if your access door has a vent in it. I believe the new ones don't have a vent.
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