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 > Your search for posts made by 'Flinx777' found 5 matches.

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RE: Dometic refrigerator keeps tripping the thermal limit switch

Over the decades I've had to replace 2 cooling units. Both were in RVs I bought used so I suspect they were not operated correctly in the past. Since I've done them myself (pretty easy as they were older, smaller fridges), it was far cheaper than replacing the entire fridge. At this point, you should take stock of how you use your RV. If you always go to RV parks wth hookups (nothing wrong with that, lots of people prefer the comforts provided!) it's time to switch to a residential type fridge. Cheaper than repairing yours even if you do all the work yourself. If you boondock at all or go to state/national campgrounds without hookups, gas fridges are still king. Switching to a residential in those cases usually involves more batteries and an inverter upgrade so you end up spending the same or more. As said above, operating out of level can make fridges run hotter outside increasing the risk of springing a leak from the repeated flexing of the steel from the greater temperature swings. You don't have to be spot on level, what happens occurs on a "sliding scale", the more out of level, the hotter the coils run. Just do your best to get the coach not too far off level and you will be OK. I've seen the obsessed using a 3' level feverishly adding/subtracting blocks to get their rig perfect. Not necessary. Also, if you live in a humid climate, leaving the RV plugged in and the fridge on electric will keep the outside coils hot and lessen chance of them rusting out at one of their welds. https://rvcoolingunit.com/Dometic-Cooling-Units-remanufactured-C4380.aspx?sid=298 I found my unit on their website: https://rvcoolingunit.com/DM2652-Dometic-Cooling-Unit-606a-626a-P5536108.aspx So you think this is easy enough to replace on my own? I just emailed them to ask for installation instructions. Also, how does this system differ from the Dometic system?
Flinx777 06/04/19 10:43am Tech Issues
RE: Dometic refrigerator keeps tripping the thermal limit switch

The Thermal fuse WORKED. That is why there is a Thermal fuse. It shut the refer down because the cooling unit overheated due to NO Ammonia and had leaked out. Doug Yup, same thing the tech said yesterday :)
Flinx777 06/04/19 10:39am Tech Issues
RE: Dometic refrigerator keeps tripping the thermal limit switch

Yellowish residue.......sodium chromate (rust inhibitor in coolant solution) The dried residue is TOXIC Do NOT use air compressor to blow it out Gloves, eye protection, vacuum ----wipe down with wet cloths (dispose of them in a sealed zip lock bag) Good to know...thanks! Will definitely not touch it and will be careful when handling it.
Flinx777 06/04/19 10:38am Tech Issues
RE: Dometic refrigerator keeps tripping the thermal limit switch

I think I have discovered the issue. Spoke with a local RV repairman and he asked if there was any yellow / green fluid that had leaked behind the refrigerator. Sure enough, it can be seen here: https://www.dropbox.com/s/7q1msqr9j5acr4s/2019-06-03_19-33-53.png?dl=0 He informed me that the refrigerator is shot at this point and will be have to be fully replaced as the coolant has leaked out. Bummer :( I'll post a response to some of the questions earlier in a moment.
Flinx777 06/03/19 08:35pm Tech Issues
Dometic refrigerator keeps tripping the thermal limit switch

I have a 2003 dometic refrigerator, RM2652, with an updated panel (update done in 2009 as it had originally been recalled). I just bought the rv used a few weeks back and upon plugging it in to power the refrigerator, the thermal limit switch keeps tripping. I'm not using propane, but rather shore power. As a result, the refrigerator keeps shutting down. I replaced the 5 amp and 3 amp fuses a few days ago on the replaced circuit board as they were no longer functional. Anyone else run into this issue or know of a solution to resolve the issue?
Flinx777 06/03/19 06:54pm Tech Issues
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