Refrigerator Not Cooling |
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jato
Senior Member Joined: 23 Feb 2012 Location: Kewadin, MI Online Status: Offline Posts: 3252 |
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Topic: Refrigerator Not Cooling Posted: 16 Aug 2022 at 5:29am |
+1 Since your electrode gap is fine, I would agree with StephenH, a cracked electrical insulator is highly suspect. Hopefully you can get that part, and if not, go to an RV store and they may have one you can remove off of another discarded fridge that they have lying around in their dump pile.
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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." |
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mikeyg2347
Groupie Joined: 27 May 2015 Location: MT Online Status: Offline Posts: 75 |
Post Options Quote Reply Posted: 16 Aug 2022 at 7:29am |
That's what I'm hoping. I'm going to make some calls this morning and see what I can find. The only gas control valve I can find online is $450. A lot of money for a tiny ceramic part.
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Mike
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6326 |
Post Options Quote Reply Posted: 16 Aug 2022 at 8:33am |
http://https://www.manualslib.com/manual/1606205/Dometic-Rm-8-Series.html#product-RM%208501
Scroll down until you see the Service Manual. That will have a breakdown of the parts but it does not break down the gas control valve. It may have other information that will help you figure out what is happening though.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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mikeyg2347
Groupie Joined: 27 May 2015 Location: MT Online Status: Offline Posts: 75 |
Post Options Quote Reply Posted: 16 Aug 2022 at 12:49pm |
The little green ceramic or plastic piece is definitely an insulator. I applied about 6 small strips of electrical tape in its place and got 1.5 volts on both sides. It still wouldn't ignite, so I pulled the burner again to re-check the gap on the igniters. The front igniter is 1/8" away from the burner and the back one (the one with the 90 degree angle) is at least 1/4" if not more. Not sure what the gap on the back should be or what its function is. They're both extremely rigid and I'd be surprised if the back one had moved out of position, but I'm a total amateur at this so I'm not assuming anything.
Stephen: I tried that link but it wouldn't work for me. Looked on the manualslib site and could only find installation and operators manuals, no service manual.
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Mike
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6326 |
Post Options Quote Reply Posted: 16 Aug 2022 at 1:37pm |
http://https://www.manualslib.com/manual/1606205/Dometic-Rm-8-Series.html
Try this link instead. As for the probes, one of them is the electrode. The other would sit in the flame. That is the flame detector. If it does not detect a flame, it would cut off the gas to prevent a gas build-up and potential fire. I don't have the RM-8501 any more so I can't check. However, you should be able to trace the wire and see which one is the electrode for ignition and which is the flame detector. If I'm looking at the pictures correctly, the ignitor has the copper-colored wire and the ionization (flame) detector has a black wire. Be sure both of those are plugged into the correct location.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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mikeyg2347
Groupie Joined: 27 May 2015 Location: MT Online Status: Offline Posts: 75 |
Post Options Quote Reply Posted: 17 Aug 2022 at 7:35am |
Probes are situated properly and working. I've determined that I have gas as far as the gas control valve but not beyond that. I replaced the green insulator with multiple strips of electrical tape and I have power on both sides of the control valve. If the solenoid is working should I hear it engaging?
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Mike
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hogone
Senior Member Joined: 09 Apr 2013 Location: St. Louis Online Status: Offline Posts: 1049 |
Post Options Quote Reply Posted: 17 Aug 2022 at 8:11am |
Mike: I am experiencing the identical issue as you have described. I went as far as replacing the entire burner assembly which included the probes/etc. NO luck. I talked with a RV service person, and he definately mentioned the gas valve. Im ready to give up and will just live without gas for the fridge. Everything else works on gas. Jon
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Jon & Pam
2013 RP177 2010 F150 2017 HD Streetglide 2009 HD Lowrider CHEESEHEAD |
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6326 |
Post Options Quote Reply Posted: 17 Aug 2022 at 9:00am |
It is definitely possible that the solenoid for the valve has gone bad. As to whether you can hear it engaging or not, I don't know. I never listened for it when we had the 3-way refrigerator.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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mikeyg2347
Groupie Joined: 27 May 2015 Location: MT Online Status: Offline Posts: 75 |
Post Options Quote Reply Posted: 17 Aug 2022 at 9:05am |
If it's the gas valve that is a $450 item, which is a good down payment on a compressor refrigerator. Stephen, I know you've done that. If I went that route can I get by with my two 6-volt battery system or is it necessary to convert to lithium? Currently I have a 100 wat Renogy solar system I use to charge. If I were to convert, is that a complicated process? Seems like I fight my fridge on an annual basis and I'm about ready to throw in the towel.
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Mike
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Post Options Quote Reply Posted: 17 Aug 2022 at 9:17am |
If you have a couple hundred amp hours battery capacity you should be fine, it doesn't have to be lithium. You might want to get a second 100-120 watt solar module and/or carry a small generator depending on how long you intend to boondock between recharges and how much sun you get where you camp.
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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