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Old 06-04-2014, 08:16 AM   #1
Music Man
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Join Date: Aug 2013
Location: Willits
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M.O.C. #13720

2014 Montana 3100RL
AC blower comes on when Heater is turned on. Is this normal? Can't consult Manual, it is in storage with trailer.
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Old 06-04-2014, 09:11 AM   #2
Montana Master
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Location: North Ridgeville
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M.O.C. #2839
Yes if the system is not set up properly.
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Old 06-04-2014, 10:14 AM   #3
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Location: Box Elder
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M.O.C. #12947
Go into your thermostat settings, and in the A/C mode, set the fan control to AUTO, then go back to the heat mode. We had the same with ours a couple winters ago.
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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Old 06-04-2014, 10:44 AM   #4
carl n susan
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Location: Carmichael - CA
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M.O.C. #4831
Yup, having the A/C fan running with the heater is a "feature". As rohrmann wrote, you have to set the fan on Auto in A/C mode to avoid having it run in heater mode. Why? Nobody knows the reason but it is documented in the manual for the thermostat.
Carl (n Susan) Youngren
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB

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Old 06-04-2014, 03:41 PM   #5
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Music man, glad you got your problem figured out. Since you,Rich and Carl have one of those new fangled rigs I bet you can control your thermostat from your Lazy Boy.... When Ma tells me she is cold I need to get up and walk over and crank the heat up by hand.. But I figure that is good time to get a beer or coffee (depending on the time of day of course)... I knew one of the boys with the newer systems would be able to help you out.
2007.5 Dodge 3/4 ton, SRW,2WD,6.7,SB
2002 3295RK, Magmun Hybrid 3012 inverter with 1305 watt solar at 82 volts. Midnite Classic 150 controller
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