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09-14-2019, 01:55 PM
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#1
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Junior Member
Join Date: Nov 2016
Location: ENDERBY British Columbia
Posts: 16
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Why two controls
Why does my holiday rambler have two heater controls. I've owned several different motorhome and have never seen this before.
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09-14-2019, 02:26 PM
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#2
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Senior Member
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 9,750
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What year is your coach?
I'm thinking the top thermostat was original, then replacement AC's / heatpumps, required the newer model lower thermostat.
__________________
Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
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09-14-2019, 02:35 PM
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#3
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Floor heat?
My CC has three thermostats. One for the 3 heat pumps, and 2 for the floor heat.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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09-14-2019, 03:48 PM
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#4
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Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: On the road
Posts: 1,920
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In my coach it is a thermostat the operates the exhaust fan in the kitchen.
__________________
Full Time 2000 Dynasty Regent FD, 8.3, Banks Turbo, 5" Diameter Exhaust, 475 HP 1425 Torque, FASS system, towing 05 Pilot 1500 Watts solar 800ah lithium & E-Bike
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09-14-2019, 04:25 PM
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#5
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Senior Member
Join Date: Jun 2012
Location: NorCal
Posts: 3,000
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Ditto on could be exhaust fan, you will need to open vent to check exhaust fan motor
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Outbound
2002 Monaco Executive 500 ISM
2004 GMC 2500HD 4X4
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09-14-2019, 06:51 PM
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#6
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Junior Member
Join Date: Nov 2016
Location: ENDERBY British Columbia
Posts: 16
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Motor home is a 2000 and came with the current heat pump a/c units. I'll check the kitchen fan
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09-15-2019, 08:03 AM
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#7
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Senior Member
Join Date: Dec 2018
Posts: 134
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Looks similar to the controls on my 04 Windsor. Top one is an exhaust fan and bottom one is a two zone thermostat for furnace, AC and heat pump. Also, another one similar to the top one is in the toilet area for an exhaust fan. You need to open the roof vent to make the exhaust fans work.
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09-15-2019, 10:12 AM
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#8
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Oct 2012
Location: Carpentersville, IL
Posts: 233
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Heater controls
Looks like a set-up similar to mine.....the one you show on top looks like it's for the ceiling fantastic fan and the other for the climate control system.
At least that's the way mine is set up.
__________________
Steve & Maryann Nowak
'98 Holiday Rambler Imperial 38WDS
'16 Subaru Outback LTD, '07 Infiniti G Cpe
FMCA # F26083
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09-15-2019, 12:52 PM
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#9
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Senior Member
Monaco Owners Club
Join Date: Feb 2013
Location: SF peninsula, CA
Posts: 195
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In case a comparison might be useful, we have 3 controls in the living room of our 2000 windsor:
Left: AC heatpump thermostat
Middle: kitchen ceiling fan controls
Right: hydro-hot zone thermostat
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Ali & Shannon
2008 Monaco Camelot 36PDQ 
2000 Monaco Windsor 40PBS sold
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09-16-2019, 05:08 PM
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#10
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 6,579
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Resqmedic02, that is not your original Dometic Duo-Therm thermostat. You will notice the thermostat in Ali's picture only has 4 buttons. Your original thermostat only had 4 buttons also. The 4 button models were very problematic and not compatible with newer A/C units. Somene has updated your thermostat to the 5 button model and probably replaced the A/C units as well.
__________________
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
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Linear Mode
