ernie1 wrote:
Dougrainer: As I had stated in a previous response, mine and my two friends bought the same units brand new and had the very same problem from the very first time these refrigerators were put into use BRAND NEW! Attempts to correct the problem through Dometic were futile and costly especially after their response was that their units were performing as designed, as in you're good until 95deg F and that's it you're on your own after that. So, the issue was not that the fridges were old, used and abused, not on level nor looked at by professionals. I have hot wired my fridge on 120vac via my inverter and on shore power and am able to get it down to maybe 35deg F at about 50deg ambient. Doesn't mean much to me because it still climbs above 45-50+ degrees when it's above 95-100 degrees F ambient. No matter how you slice it, the potentially hazardous food will start to spoil under these conditions. The longer the time at such high temps the more bacterial growth you get and the chance that you'll sicker is increased.In the recent past I've replaced the propane gas regulator with a new Marshall unit and used my manometer to adjust the pressure to 11.5 "wc, installed two fans in the rear condenser area, two fans in the freezer and two fans in the refrigerator section. Nothing has helped except that the fins in the refrigerator section don't now freeze up but temps are still too high.
ernie1 wrote:
Old Biscuit: I agree with your statement concerning proper installation is necessary by rv manufacturers to achieve proper cooling. However, I have checked very carefully the installation requirements and clearances according to my owner's installation instruction and have found them to be spot on. I think I recall that Dometic's specs are set at a maximum of 95degrees F ambient which is the temperature at which my refrigerator can not keep up and the internal temps start rising into and above 40 degrees F. By the way, 37 degrees F is not a bad internal temperature for a refrigerator but not at all optimal because something of a lower temperature without freezing the food will give you more lee way in case ambient temps rise. Higher temps allow the bacteria to multiply faster. I think 35 degrees F is better because it won't freeze the food, gives more leeway in case of a rise in ambient and accounts for inaccuracy of thermometers. For what it's worth, my Dometic and those of my two friends who bought their rvs new, have better results with their refridges running on 120ac than they do on propane gas which is odd. This is after careful inspection and some repair by rv shops with careful guidance from Dometic. The results are 40+ degrees F in the 90+ degrees ambient. Totally unacceptable!
ernie1 wrote:
40 degrees Fahrenheit is the absolute maximum temperature that potentially hazardous foods can be kept at. Anything above that and you are asking for trouble. Additionally, the longer time that the food is kept at that temperature, the more hazardous the food becomes. 35degrees F. or so is more ideal.
skipg: My Dometic RML8555, brand new has never done any better than yours and its sad that we consumers are saddled with these lousy appliances. As a side note: my two friends who bought new rvs that have the same fridge as I do, had the same problem also and Dometic's response is that that's the way they are. One friend spent $$$$ and switched to a 12volt compressor fridge and the other spent $$$ trying to repair something that couldn't be fixed. Myself, I've given up.
