How to Wire the Atwood RV Carbon Monoxide and Propane Gas Detector Part # AT36681
Updated 11/18/2021 | Published 03/02/2018 >
Question:
The safe t alert CO and Propane unit I have seems to be defective after 1 year. Id like to try this unit although it isnt the same size. My major concern is the safe t alert is a two wire connection. How do I connect the three wire atwood unit to my two wires?
asked by: Greg
Expert Reply:
The Atwood RV Carbon Monoxide and Propane Gas Detector part # AT36681 has three wires as you mentioned but only two will need to be used. There are two red wires and one black wire. The black wire is ground and the two red wires are for power. Only one of the red wires will need to be used. The other red wire is for an optional backup power source.
I have attached a wiring diagram to explain this for you as well. Please note that because LP gas is heavier than air, this detector should be installed no more than 18" from the floor so that it can accurately detect the amount of gas in your RV.

Continue Researching
- Shop: Solera XL 12V Power RV Awning - 21' Wide - 9'8" Projection - White Fade
- Shop: Thetford Aqua-Magic Style Plus RV Toilet - Standard Height - Round Bowl - Slow Close - Bone Ceramic
- Shop: RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - Black
- Video: Breaking Down the Thetford Aqua-Magic Style Plus RV Toilet
- Q&A: Replacement Carbon Monoxide Detector for Atwood 36681
- Search Results: truma coolers
- Shop: RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - White
- Shop: Solera XL 12V Power RV Awning - 19' Wide - 9'8" Projection - White Fade
- Shop: Truma Electric Cooler - Single Zone - 46 Qts - Gray
- Q&A: How to Connect Wires of Atwood RV Carbon Monoxide and Propane Gas Detector
- Shop: RV Propane Gas Detector - 12 Volt - 2 Wire - Black
- Q&A: Replacement for ProTECHtor RV LP Gas Detector
- Q&A: Difference Between Atwood Protechtor and Non-Digital Carbon Monoxide and LP Gas Detector
- Search Results: latches
- Q&A: Correct Wiring for the Atwood RV Carbon Monoxide and Propane Gas Detector
- Shop: Mud Flaps
- Q&A: Recommended Replacement Carbon Monoxide Detector
- Q&A: Will Atwood RV Carbon Monoxide and Propane Gas Detector # AT36681 Replace 31011
- Search Results: lp sensor
- Search Results: morryde cargo tray
- Search Results: propane detector
- Search Results: rv safe
- Video: An In-Depth Look at the RV Propane Gas and Carbon Monoxide Detector
- Search Results: carbon monoxide and propane rv gas detectors
- Video: Breaking Down the RV Propane Gas Detector
- Shop: Trailer Hitch
Dr F.
11/13/2021
My sensor would not stop "squealing" so I disabled it. where can I purchase a replacement? Thanks for ypur assistance. Frank