Is The Camco RV Single Stage Thermostat # CAM09221 A 3-Wire Thermostat
Updated 11/03/2025 | Published 12/31/2024
Products Featured in This Question
Question:
IS THE camo9221 a three wire unit, like the dometic 3316410.012 unit? If so, I want one.
asked by: Frank E
Expert Reply:
Hi Frank,
The Camco RV Single-Stage Heat and Cool Wall Thermostat # CAM09221 can be wired to a 3-wire system by using the terminal cross reference chart to determine which wire goes where. With how finicky Dometic's AC systems are you likely would communication errors with the controller if you try to use any other branded thermostat. The correct replacement for your outdated Dometic 3316410.012 thermostat would be the # DMC79FR.
I've attached wiring instructions/diagrams below for both the # CAM09221 and # DMC79FR to help you with the installation process.
(click to enlarge)
(click to enlarge)
(click to enlarge)
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
Camco RV Single-Stage Heat and Cool Wall Thermostat
- Accessories and Parts
- RV Air Conditioners
- RV Heaters
- Thermostat
- White
- Camco
more information >
Continue Researching
- Search Results: dometic thermostat
- Q&A: Purpose of Furrion Wiring Adapter for new R32 Units
- Q&A: Can I Swap My Coleman Mach Q 15 to the Furrion Chill with an Adapter, or do I Need a New Set-up?
- Video: Detailed Breakdown of the Replacement Single Zone Thermostat for Dometic RV Air Conditioners
- Shop: Replacement Single Zone Thermostat for Dometic RV Air Conditioners - Black
- Q&A: Recommended Replacement Air Conditioner for RVP 8000 Series Model 8333A871
- Shop: Dometic CT Thermostat and Control Board - Single Zone - Black
- Q&A: Function of 3 Wires On Dometic CT Thermostat
- Shop: Camco RV Single-Stage Heat and Cool Wall Thermostat
- Search Results: rv skylight accessories and parts
- Search Results: vent cover rv vents and fans
- Search Results: pendant lights
- Shop: Furrion Adapter Wiring Kit for Coleman, Dometic, or Advent Air RV AC Units - R32
- Shop: MaxxAir II RV and Trailer Roof Vent Cover w/ EZClip - Black
- Video: Mount: Curt Trailer Hitch Receiver on a 2023 Toyota Highlander
- Shop: Furrion Adapter Wiring Kit for Coleman, Dometic, or Advent Air RV AC Units - R410a
- Shop: Furrion Chill HE Replacement RV Air Conditioner for Coleman Setup - 15,000 Btu - Black
- Article: Trailer Lighting Requirements
- Search Results: axle
- Shop: RV Exterior Lighting
- Q&A: How To Determine Which Replacement Gear Pack To Use on Lippert Slide Out
- Q&A: Recommended Wall Mounted Thermostat for a EverChill 15,000 Btu AC
- Q&A: Replacement Thermostat for Dometic 3316410.012
- Article: How to Measure for Travel Trailer and Fifth Wheel Steps
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Best RV Roof Vents
- Article: Trailer Wiring Diagrams
Jesse M.
11/3/2025
Hey Frank, how did things go with the replacement thermostat for your Dometic system? Did the # DMC79FR end up working smoothly with your setup? Your update could make it easier for the next person with the same issue.