Troubleshooting Atwood 31013 Propane/CO Detector Flashing Red
Updated 01/27/2026 | Published 12/29/2025
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Question:
Have a camper with a Atwood 31013 co2/propane detector. It was blinking red earlier. Is that a sign of gas or co present? It wasn’t making a noise just flashing red. My dog knocked it all the wall earlier in the day if that has an effect. It turned back green but still unsure if I should turn furnace back on. Thanks!
asked by: Jt
Expert Reply:
Hi Jt; was there a tone with the red flashing? There should be a sound along with the light if the actual alarm is going off. If you just turned on power it will flash red during the start up sequence. It may have even been that your dog bumping it caused a temporary power loss and it restarted itself.
If it continues to blink red it is probably the end of its life and should be replaced with # RS34FR (white) or # RS54FR (black). Did you smell any propane? I'm sure you would smell it on top of actually hearing the detector if there was a leak.
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RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - White
- RV Gas Detectors
- Carbon Monoxide and Propane
- Alarm
- White
- RV Safe
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Robin H.
1/27/2026
Hey Jt, did the blinking on your Atwood detector stop after it turned green again? Knowing how it behaved later could help others figure out if they’re seeing a normal restart or a sign it’s time to replace the unit. Your update could make it easier for the next person with the same issue.