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01-01-2021, 03:47 PM
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#1
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Member
Join Date: Oct 2020
Posts: 31
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HVAC
So this is my problem. I run the furnace at night to keep the temp up. I get up in morning cut it off and try and turn the hvac but it will not come on at all. Not even thr fan. I had bedroom fan going for the noise but then I cut that off and that will not come back on. Any ideas fir this problem? I turned off breakers and battery shut off and nothing. Please help
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01-01-2021, 06:21 PM
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#2
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Senior Member
Join Date: Jun 2012
Location: Southern NM
Posts: 9,561
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Need more details. What RV do you have? What part of HVAC is not working? HVAC is any equipment that keeps your RV at the desired temp, so it includes heater, a/c, heat pump, etc. Do you have one thermostat or zones?
__________________
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD Duramax
Reese Fifth Airborne Sidewinder
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01-01-2021, 06:45 PM
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#3
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Member
Join Date: Oct 2020
Posts: 31
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I have a 2021 Georgetown. The both roof units will not cut on for some reason. All breakers are good. Even just the fans will not come on. Furnace works fine.
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01-01-2021, 07:02 PM
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#4
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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Are you connected to shore power?
Do other 120v items work?
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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01-01-2021, 07:04 PM
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#5
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Member
Join Date: Oct 2020
Posts: 31
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Yes connected to shore and everything else in the rv is working. They units have been working so don't understand why they will not come on.
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01-01-2021, 07:54 PM
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#6
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Senior Member
Join Date: Jun 2015
Location: Payson, AZ
Posts: 3,872
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Will the fans come on if you set the mode to fan only? Does the thermostat control both the furnace and the a/c’s. Do you have only one thermostat or do you have a separate one for each a/c?
__________________
2015 cardinal model 3825fl
2015 dodge ram 3500 dually
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01-01-2021, 07:56 PM
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#7
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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Not knowing which thermostat your Georgetown has, this just a wild guess. You wake up and turn off the furnace and turn on the HVAC expecting the heat pump to come on. Does your Georgetown have the heat pump feature? If it does, is it set up to automatically switch to furnace when the outdoor temperature gets down 40-45 degrees?
Heat pumps do not work well below 40 degrees.
__________________
Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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01-01-2021, 08:31 PM
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#8
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Salty Senior
Join Date: Oct 2020
Location: Pompano Beach
Posts: 52
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Smart Thermostat
A common feature of electronic heating/cooling thermostats is a temperature gap between heat and cool. This hysteresis prevents rapid h/c switching. You may be in that zone.
Happy  camping
Gene. 
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01-01-2021, 08:49 PM
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#9
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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How long have you waited after turning the furnace off when switching to A/C?
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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01-02-2021, 11:16 AM
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#10
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Member
Join Date: Oct 2020
Posts: 31
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No the fans won't even come on and yes I get up cut the furnace off and the try and turn on the heat pump but nothing. I do that to try and save propane. So I guess the units will not cut on unless the outside temp is above 45?
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01-02-2021, 11:44 AM
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#11
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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Quote:
Originally Posted by 69DAWG
No the fans won't even come on and yes I get up cut the furnace off and the try and turn on the heat pump but nothing. I do that to try and save propane. So I guess the units will not cut on unless the outside temp is above 45?
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You got it, bro. If you leave it set to heat pump mode it will automatically switch back and forth as needed. Heat pump above 45, furnace below 45.
__________________
Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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01-02-2021, 11:55 AM
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#12
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Member
Join Date: Oct 2020
Posts: 31
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I have a auto heat setting. So I guess it hS to be on that so it will switch to furnace when it gets below 45 outside correct?
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