Fridge Problem

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   I have a 177 with a Dometic RM8501 3 Way fridge.  I runs on 12 volt and shore power but it will not run on Propane.  I have replaced the Thermocoupling and the Grey control box on the back of the fridge.  The pilot light will come on and it will burn for a short period and then will go out.  Not sure what to check or do next.  
Could a faulty gas valve creat this issue? Is it the main board on the front of the fridge?

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2BOverlanding Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 01 Dec 2021 Online Status: Offline Posts: 8	Post Options Post Reply Quote 2BOverlanding Report Post Quote Reply Topic: Fridge Problem Posted: 13 Jul 2026 at 4:06pm
	I have a 177 with a Dometic RM8501 3 Way fridge. I runs on 12 volt and shore power but it will not run on Propane. I have replaced the Thermocoupling and the Grey control box on the back of the fridge. The pilot light will come on and it will burn for a short period and then will go out. Not sure what to check or do next. Could a faulty gas valve creat this issue? Is it the main board on the front of the fridge?

jato Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 23 Feb 2012 Location: Kewadin, MI Online Status: Offline Posts: 3439	Post Options Post Reply Quote jato Report Post Quote Reply Posted: 17 Jul 2026 at 1:51am
	Carefully clean the two contact rods above the combustion area. Also a partially plugged propane regulator may be at fault.
	God's pod '11 model 177 '17 Ford F-150 4WD 3.5 Ecoboost Jim and Diane by beautiful Torch Lake "...and you will know the Truth and the Truth will set you free."

gpokluda Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 11 Nov 2018 Location: East Idaho Online Status: Offline Posts: 505	Post Options Post Reply Quote gpokluda Report Post Quote Reply Posted: 17 Jul 2026 at 7:08am
	If what jato recommends doesn't work, test your stove and furnace. If they experience any fluctuations in flame or ignition, you regulator may be the issue.
	Gpokluda 2017 Rpod 179(sold 2023) 2022 Escape 5.0TA 2022 Ford F150 4X4 3.5EB Honda SCL500

hogone Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 09 Apr 2013 Location: High Ridge, MO Online Status: Offline Posts: 1076	Post Options Post Reply Quote hogone Report Post Quote Reply Posted: 17 Jul 2026 at 7:28am
	Not gonna be much help here, but had the exact same issue when I had my pod. Did everything that was recommended at the time; cleaned rods, changed regulator (even though all other gas stuff worked great), blew out lines, replaced thermocoupling (I guess that's what its called), cleaned combustion area, etc. Spent about $200 on parts and I never got it working and just gave up. It was a bummer as those fridges really need gas if boondocking and traveling for periods of time. If you ever get it running, Ill be anxious to hear just to see where I failed . Jon
	Jon & Pam 2025 GD 17MKE 2013 RP177(sold Nov 25) 2023 F150 CHEESEHEAD

StephenH Members Profile Send Private Message Find Members Posts Add to Buddy List podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6487	Post Options Post Reply Quote StephenH Report Post Quote Reply Posted: 20 Jul 2026 at 9:51am
	I found that the regulator was okay. The issue was that there was an oily fluid in the gas line leading to the refrigerator. Turn off the propane at the bottle. Then disconnect the hose from the refrigerator end and the regulator end (not the pigtail, but the end that supplies the appliances). Put the regulator end in a container. Using a compressor, blow air in from the refrigerator end. If I am right, a significant amount of thick, oily liquid will be in the container. Then reconnect the lines at both ends and after the air is purged, try the refrigerator again. If it works, then this was the issue. The reason this works is that the stove, furnace, and water heater take a high volume of propane. The flow is enough to push through the liquid for the high-volume appliances. The low flow for the refrigerator does not have the volume to push the liquid aside.
	StephenH Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS