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Les_Balty's avatar
Les_Balty
Explorer
Aug 26, 2016

Dometic Refrigerator inoperative

We have been back & forth our Dometic fridge in our 2015 Montana 5er. It quit working properly in early June. The dealer replaced the cooling unit and it worked for 24 hours then back to temps in the 50s and chunky milk. It has been back to the dealer to have all sorts of baffling and insulation added as well as another fan. No rhyme or reason to its functioning. It will be good 30s to low 40s for a day or so, then back to 57 for 2 or three days. The problems commenced before Keystone warranty expired & a year to go on the Dometic before our service plan kicks in. Dometic blames Keystone. Keystone blames Dometic. I want a functional fridge!
  • Have decided to take donn0128 advice. If Keystone or Dometic want to be reasonable & pony up a little $ that would be good. We have been dinking around with this thing for 3 months now. Replace it & go happy is great advice. More than a little disappointed with these RV equipment manufacturers though. Will let you know if they make good on their guarantees, but not looking back.
  • A easy way to figure out if it's the cooling unit or the control is to take the electric heater wires and wire it directly to 120 volts. If the unit cools properly it's a control problem if it doesn't it's the cooling unit. If when the dealer changed out the cooling unit and didn't seal around the outside area where the cooling cools are the unit will not work like it should.

    Denny
  • If you are working with Dometic, maybe you could talk them in to a new DMC compressor model, which would be a direct swap out, same door panels, built for travel and cabinet installation- no inverter required.
  • After the final cooling unit in my rig did the same - operated for about 2 weeks then failed to cool. But resumed normal operation after sitting 48 hours unfired I trashed the Norcold. But Sal and I at KOOL FUN an absorbsion WD and cooling unit rebuilder in Inwindale CA chopped open the new cooling unit at my expense. The 3rd warranty replacement unit.

    We found welding slag inside the tubing. About a thimble full that escaped being evacuated upon depressurization of the unit. This was the autumn after the great events on the Yucatan peninsula.

    Bottom line: Sal theorized the slag percolated upward slow but sure and managed to plug an orifice. A tech rep from Norcold examimed the refrigerator and my rig. He said nothing was done incorrectly on the install. This is absolutely aside the unit temperature "issues" I experienced for four months. When I moved to San Cristobal de Las Casas elevation 7,000 ft the refrigerator temp dropped to acceptable level. But it did not stop nor did anything else stop the 2 week periods of operation failure with the original nor THREE NEW Norcold cooling unit replacements. The tech supervised the last install.
  • So... We took Donn0128's advice. We dumped the Dometic boat anchor (all it is good for) & had a new GE residential fridge installed by Mitch Holland of Infinity Upholstery of Nacogdoches. The Electrical work installing 1KW inverter & 2 deep cycle AGM batteries was done by Isaac Anderson at Old Town Motorcoach, also of Nacogdoches. We view this to be an elegant upgrade to our Montana. Severely disappointed in Keystone & Dometic's lame warranty service over a 3 month period though happy with our improvement.