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WildernessTalul's avatar
Jul 29, 2016

Unique Off-Grid Propane Fridge - Will not run on propane.

Add me to the list of many people whom cannot get their propane fridge to work. I have a Unique brand propane fridge (1 Year Old) that is suppose to be able to run on electricity, solar power or propane. At this point I am running it on my generator... ugh

Issues with propane:

I do not know anything of propane fridges so bare with me. I just moved into this place with this fridge and it has not worked much since I moved in. The certified propane guy came to look at it and he replaced the thermal coupler. The fridge worked perfect for maybe three days and then it would be out. I would relight and it would run for 12 hours and then out. Then I would try maybe 10 times, it would relight then it would be out 1 hour later. Until the point if it not lighting agian. Propane guy came out once again and replaced the thermal coupler once again. Then it ran for about a week and then the same thing. Died every 12 hours then every hour and then I could not get it lit again. I have been reading a lot online and I replaced all batteries (that I seen). Theres one AAA in the front and four AA in the back. They were all dead. I was able to get the fridge lit after replacing but then went out again and now nothing. I thought maybe the wind was blowing out the flame but that does not seem to be the issue.

Since now running the fridge off of the generator, I put a digital thermometer inside the freezer to see what temp it gets to. It will not go below -2c. It has been running for maybe 8 hours. I also tried this on solar power and still the freezer will not go below -2. And is not keeping anything frozen. When the fridge was working on propane and the dial is above 3 inside of my fridge was starting to freeze. I thought maybe the electricity wasnt working due to my house being 12 volt. I put an extention cord directly to my 4000w genny and still will not drop below -2.

I called the propane guy again, fridge is on warranty but propane guy hates working on them (I live in a remote area and one person has many different jobs) so takes weeks to come over to look but not impressed to even take a guess of whats wrong with it. Meanwhile I am dealing with no fridge or freezer. Trying to find someone to knows a lot about these fridges and could possibly help me pass some info onto the fridge guy so this thing gets fixed.

Any help appreciated! Sorry for my long winded post. Cheers.
  • Jframpey wrote:
    We can only guess until we know the manufacturer and model # of the fridge.


    Manufacturer: Unique
    Model #: UGP - 10
  • Well you could learn to change your own thermocouplers. They only take a couple of minutes. As long as the flame is heating it correctly, it should work right for years. Think about the water heater in a grid house. It will have one thermocoupler for 20+ years!

    Think about a wall heater or floor furnace. I have worked on those with a 750 mV thermocouple that is 10 - 25 years old, and they still work great.

    It might be the thermocouple is not tight, or not in the correct position within the pilot flame. They only make a fraction of a volt, so if the connection is loose, then it will not transfer the whole 0.085 volts, and the flame will go out.

    Also I was working on a buddy's refiregerator in a A-frame trailer. I cleaned out what looked like a white filter in between the pilot and the propane line. Turns out it sort of fell apart in my fingers, then the flame worked right afterwards. I think it was a spider nest. Spiders like the smell of propane, and tend to build a nest near a source of food for their young, normally a pile of dung. But propane has a similar smell to animal dung (Poo). So spiders tend to build a nest in un-lit water heaters and furnaces, and refrigerators.

    Good luck solving your problem. My guess is the pilot flame is not large enough, and increasing the pressure to the pilot flame might solve the problem.

    Also check your data plate. Chances are that the 120 volt electric element is close to 250 - 300 watts, or 770 - 1000 Btu's per hour. Most gas flames are in the 2,000 - 2,500 BtuH rating, or about twice the heating capacity as the electric elements. So you will get twice the cooling effect on gas than electric.

    Hopefully you will get it running right soon!

    Fred.
  • We can only guess until we know the manufacturer and model # of the fridge.

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