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Old 12-23-2016, 03:50 PM   #1
Junior Member
Brand: Thor Motor Coach
State: California
Posts: 7
THOR #6139
30.1 floor vents won't turn off

Some time over the night my RV decided to turn on the floor vents in the rig. I noticed it early in the morning and couldn't get it to turn off. I unplugged from my house, checked the thermostat to make sure it was off and it was still blowing air. The only way to turn it off was to turn off the battery connect.

Anyone else have this issue? Any suggestions on what i should check? I think my bus might be possessed.

-Socal Josh
Thor motor coach 30.1

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Old 12-23-2016, 05:04 PM   #2
Senior Member
Travelin' Texans's Avatar
Brand: Redwood
State: Texas
Posts: 1,309
THOR #3610
The furnace only blows from the floor vents & it's propane powered by 12volt from the batteries. Like most rvs the floor vents aren't closable due to too much heat build up if closed. If you had your thermostat set on "electric heat" that comes from the roof heat pumps & blows through ceiling vents, but once the inside temp drops 4-5 degrees below the set temperature the furnace fires up til it reaches the thermostat setting then the heat pump will start again. The heat pump will only work adequately until the outside temps reach about 40 degrees then they start blowing cold air & your furnace will start kicking on. Your coach is not possessed, but actually working as it should.

Danny & Linda
Sold our '13 Thor Redwood 36 FB
Currently RV & truckless
Replacement undetermined
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Old 12-23-2016, 05:56 PM   #3
Junior Member
Brand: Thor Motor Coach
State: California
Posts: 7
THOR #6139
I've had the RV for about a month and it just started doing this. The overnight temps have been down to the low to mid 40's but thats it and I didn't notice blower being on. The outside temp was in the 50's when this was happening and I had the thermostat at its lowest setting of 55F. I will check it out today when I get off early. Temps are in the low 60's today.

Thanks for the input. happy holidays

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Old 12-23-2016, 07:54 PM   #4
Senior Member
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Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,692
THOR #5196
Check your thermostat and see if selector switch is set to fan only.
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FMCA 101070S

Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!
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Old 12-24-2016, 02:33 PM   #5
Brand: Thor Motor Coach
Model: ACE 30.1
State: Wisconsin
Posts: 51
THOR #3486
If t-stat is off and fan still runs, check circuit board at furnace for water getting in.
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