thermostat

We just purchased a new 2025 Rockwood Signature 8337RL 12/09/25 and have a heater issue. It has 3 a/c and the thermostat is a Coleman/Mach. The main system for heat does not come on because it shows a room temp of 77* and does not change no matter what. It also has sensors in rear living room...

Just had a heat-only thermostat installed, Dometic model 9610008133. I can't seem to find a manual for it anywhere online (guy that installed it didn't have one); anyone happen to have one handy?

Hello. New to the forums. Wife and I currently live in our Ultralite while our home is being built. Loving it so far. Some minor hiccups. Currently, the heater is blowing cold air but no heat. We are connected 100% to our EcoFlow solar. The attached picture shows the message...

Helping a friend here. He would like to replace his manual, none display Coleman Mach thermostat with a digital display unit. His unit does not have a heat pump. He has a separate propane furnace controlled by the same thermostat. Can anyone help us out?

Ive moved my 5th wheel 2013 Montana Big Sky to a lake property. I would like to control the heat and ac remotely. It has 2 zones and only zone 1 runs the heat. What would you recommend? Thanks

Hello all, Curious if one can put in a programmable thermostat in a 2024 sandpiper? Be nice to set it when away, as i live in cooler climate during winter season

After years of frustration punching buttons repeatedly on our Dometic Duo-Therm four button thermostat, I decided to take a chance and purchase new button switches for it. These work perfectly and it works as new again. If your considering switching out the obsolete four button thermostat with...

My HVAC thermostat does not want to work. Does anyone have suggestions for a replacement?

this thermostat has given me problems off and on since I bought this motorhome two years ago. I found the Micro Aire 356 that is supposed to replace it. Has anyone replaced theirs with this?

I’ve got an enclosed utility trailer that has an old Coleman Mach roof A/C. It has the manual control knobs for the fan/AC modes and thermostat. I asked an AI chatbot if there was a thermostat that would allow me to adjust the temp below 60 degrees and it told me that one pictured would work...

The motorhome I just purchased has a dual zone + LP heat digital coleman mach thermostat (see picture), with missing buttons. It works fine, but you have to push the button on the circuit board instead of the button cover. Does anyone know where I can get replacement buttons for it? Or anyone...

New to Rving and have a question about the ac / heat source on a 2020 399 th I Used the one control wall mount and set the temps to all 3 ac to 72 / 74. Heat cool Q1) why would inside cabin be 60 degrees if temps are set to 72-74. Cool Q2) is the furnace thermostat different than the ac on...

On a budget here so we purchased a battery operated residential thermostat at a discount shop, not knowing a rv thermostat is required... is there a way to connect to make ac run properly? We don't use propane, so the heater is not needed.thinking it was just color coded, we took off old...

I had an issue with my thermostat not having power and found that it was related to my furnace circuit board which was strange. If the furnace is being serviced then the thermostat doesn't work. I checked the thermostat wiring diagram and it is supposed to be getting 12 volts from the battery...

I’m going to buy a thermostatic mixing valve for my shower. Does anyone have advice on models you have been pleased with? Any that I should avoid? I was wanting a digital model but haven’t found one that will install easily in an RV. I’m currently shopping for a mechanical but I would be...

I have a 2005 Fleetwood Discovery and having a problem with activating both the rear air conditioner and the rear furnace. It appears that the thermostat controls zone 1 which is front air and heat and zone 2 which is rear air and heat. The problem I am having is the thermostat will only display...

I wanted a digital backlit thermostat so last spring I purchased a 9420-381 model as it was a direct replacement for the existing analog thermostat. I installed it and tested everything--heat and AC both worked. So we spent all summer using the AC with very minimal need for heat. No problems...

Good afternoon. I have an issue with my Dometic AC that is very frustrating. I had a new Dometic Revolution 15,500 BTU unit installed two seasons ago. Since that time I have been experiencing issues with the ac unit cycling properly to maintain a constant temperature. I spoke with Dometic and...

Can someone explain why we need -12Vdc to operate our hot water heater, thermostat, furnace and air conditioner? Also, where does this -12v come from? ==> Just the "black box" view will be sufficient. Thanks! ==== Diving Deeper === The simple 9V battery diagram below shows the concept...

I am in the thinking stages of moving the ac temp sensor over to the thermostat. I have access to the brown and white wires on both ends. Only issue is the brown and white wires at the ac were cut short and won't reach the temp sensor wires. In the attached photo is the plug that houses the...

Hello all. 1998 holiday rambler endeavor. Atwood LPG furnace and 2 rooftop AC units. When I received the coach, someone had replaced the comfort control thermostat with one thermostat in the living area and one in the bedroom to control the two ACs independently and only the ACs. I am fine...

I'm hoping for a little insight from the group. I've searched, but couldn't find my exact problem. My intention was to replace the analog thermostat with a digital version to hopefully improve accuracy. Going from a Coleman Mach AR7815 to a Coleman Mach 9420A381, only 6 wires should be a...

The thermostat is stuck on cold, any ideas? Part has been superseded and repair shop told me that I'd have to buy new one and have them rewire the connections.

2025 337RLS two thermostats and neither will turn on. Checked all fuses and breakers. No idea which fuse would control the thermostats.

Greetings! I have a Dometic Penguin ii AC unit that has a CCC control board. Can I hook a CCC2 (10 button) thermostat to it or must it be converted. I have read it can be done by just setting the dip switches and initializing the thermostat. Is this true? Thanks for any help.