Refrigerator Won't Cool Below 40 Degrees
A couple of weeks ago my neighbor purchased an older RV with a Dometic RM1350 refrigerator that holds the refrigerator temperature at 40 degrees as verified by a number of different thermometers. I'm ...
Forum Discussion
1st off........
Display is actual temp of food compartment...not set temp
2nd....
Unplugging the thermistor in THAT model will not cause continuous cooling..it will shut fridge down until thermistor is plugged back in or faulty one replaced
3rd...
Moving thermistor location will NOT have much if any affect on temps because fridge has an 'adjustable thermostat' ----1-5 settings
OP
Are the fans in outside compartment functioning...running/moving air?
How are you measuring temp in food compartment?
Fridge has an 'automatic cooling unit cycling system'
Shuts down heating cycle every 48 hours to 'defrost' fins in food compartment
Air Leaks
Door seals......if not fully sealing air leaks in causing warmer then normal temps
Drip tray drain hose 'check valve' if missing in end of drain hose or if drain hose is cracked.air leaks in causing warmer then normal temps
Upper display panel testing continuity
There are 4 contacts on end of circuit board
Temp set point....continuity between 1 & 4
Auto/Gas..........continuity between 3 & 4
On/Off............continuity between 2 & 4
(see pg. 21 in Service Manual Link)
Service Manual RM1350
Display is actual temp of food compartment...not set temp
2nd....
Unplugging the thermistor in THAT model will not cause continuous cooling..it will shut fridge down until thermistor is plugged back in or faulty one replaced
3rd...
Moving thermistor location will NOT have much if any affect on temps because fridge has an 'adjustable thermostat' ----1-5 settings
OP
Are the fans in outside compartment functioning...running/moving air?
How are you measuring temp in food compartment?
Fridge has an 'automatic cooling unit cycling system'
Shuts down heating cycle every 48 hours to 'defrost' fins in food compartment
Air Leaks
Door seals......if not fully sealing air leaks in causing warmer then normal temps
Drip tray drain hose 'check valve' if missing in end of drain hose or if drain hose is cracked.air leaks in causing warmer then normal temps
Upper display panel testing continuity
There are 4 contacts on end of circuit board
Temp set point....continuity between 1 & 4
Auto/Gas..........continuity between 3 & 4
On/Off............continuity between 2 & 4
(see pg. 21 in Service Manual Link)
Service Manual RM1350
