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Old 10-21-2018, 10:11 AM   #1
Slg
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Furnace thermostat

Have 2019 forest river grey wolf 23mk. Have no thermostat for propane furnace. Dometic thermostat controls ac but not heat. Air comes out ceiling vents but not floor vents when dometic control is on
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Old 10-21-2018, 10:15 AM   #2
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not sure what you mean...

are you saying that your Thermostat has no 'HEAT' or 'FURNACE' setting? strange...

or
are you saying that when you turn your setting to 'HEAT' or 'FURNACE', you then have the roof air conditioner fan(s) coming on? if so, change the 'FAN' setting to 'AUTO', as the furnace has it's own fan, which pushes heat only thru the floor vents.
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Old 10-21-2018, 11:04 AM   #3
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Mine has a heat pump and furnace setting. Have you checked your fan settings? Is your fan set to Auto? Does your unit get warm when you heat? Do you have a photo of your thermostat?
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Old 10-21-2018, 11:15 AM   #4
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Have 2019 forest river grey wolf 23mk. Have no thermostat for propane furnace. Dometic thermostat controls ac but not heat. Air comes out ceiling vents but not floor vents when dometic control is on
There is no separate t-stat for the furnace. It's actually pretty simple if you think about it. Why do you have floor vents if you have no furnace AC/heat pump/furnace all in one t-stat.
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Old 10-21-2018, 11:16 AM   #5
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Please post a photo of the thermostat. There is not a separate thermostat for heat and AC.
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Old 10-21-2018, 12:40 PM   #6
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There is usually a switch on the thermostat (Heat/Cool) and perhaps one for fan speed.

The furnace is controlled by a wall thermostat even in tiny popups.

Factory furnished thermostats are a study in "how cheap can we get away with" production. Lowes or Home Depot or Amazon has much better models. You need one powered by a battery. Here's one for 25 bucks. Programmable so it can be toasty warm when you wake.



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Old 10-21-2018, 02:11 PM   #7
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Have 2019 forest river grey wolf 23mk. Have no thermostat for propane furnace. Dometic thermostat controls ac but not heat. Air comes out ceiling vents but not floor vents when dometic control is on

Here's a youtube video on the thermostat that I think you have. If it's not the exact model, usually the same process for switching "modes" is the same.

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Old 10-21-2018, 03:05 PM   #8
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Quote:
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Have 2019 forest river grey wolf 23mk. Have no thermostat for propane furnace. Dometic thermostat controls ac but not heat. Air comes out ceiling vents but not floor vents when dometic control is on
Your Dometic thermostat DOES control the furnace.
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Old 10-21-2018, 03:43 PM   #9
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Here's a youtube video on the thermostat that I think you have. If it's not the exact model, usually the same process for switching "modes" is the same.

I have the fan on auto and then went to heat. Turned up temp setting and still nothing happened. I do not have heat pump only propane furnace
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Old 10-21-2018, 04:12 PM   #10
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Post a pic of your thermostat.
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Old 10-21-2018, 05:11 PM   #11
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I have the fan on auto and then went to heat. Turned up temp setting and still nothing happened. I do not have heat pump only propane furnace

OK. The furnace may have entered shut down mode for some reason. You can reset this by pulling the fuse for the furnace and/or turning all modes on the thermostat OFF. Then re-insert the fuse and try turning on the furnace again via the thermostat.
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Old 10-21-2018, 06:53 PM   #12
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I have the fan on auto and then went to heat. Turned up temp setting and still nothing happened. I do not have heat pump only propane furnace
You need to understand what you have. A Heat pump is a type of AC system. The roof top unit provides AC and heat. Also because you have floor registers. You have a propane furnace. Both units work off the same t-stat. Time for You to read you manusls.
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Old 10-21-2018, 07:43 PM   #13
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Originally Posted by rracer5 View Post
OK. The furnace may have entered shut down mode for some reason. You can reset this by pulling the fuse for the furnace and/or turning all modes on the thermostat OFF. Then re-insert the fuse and try turning on the furnace again via the thermostat.

Thank you so much for trying to help me. Will try this Monday P.M.
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Old 11-02-2018, 08:04 AM   #14
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I have a 2018 23MK w/ the Dometic thermostat. One other thing to try is re-initialize the thermostat. Hold the 'up' then hold the 'on/off' at same time for about 3 seconds. Should get double bars across screen. Touch 'on/off' once to return thermostat to off. Then try touching 'on/off' to get to furnace.
Keep in mind these things are REALLY touch sensitive, so you don't need to mash the buttons. A lesson I learned when my temp kept racing up to 90' when I was trying to bump it up a couple degrees.
I re-initialize the thermostat on every trip now, that also took care of the clicking coming out of the overhead a/c when furnace was on.
Good luck.
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Old 11-05-2018, 01:46 PM   #15
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Thank you so much for trying to help me. Will try this Monday P.M.
The thermostat modes are fan, cool, heat, furnace and off. While in fan mode you can choose auto, low or high.
Cool = air conditioner
Air blows from ceiling registers.
Heat = heat pump (air conditioner reversed)
Air blows from ceiling registers.
Furnace = Propane furnace.
Air blows from lower registers if fan on auto.
Off is hopefully self explanatory.
Did you ever solve this issue??
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