Dometic RM1350 Elite Troubleshooting Manual

Dometic RM1350 Troubleshooting Guide for Poor Cooling
For use when the temperature indicator is consistently greater than 39 degrees
Assumed to be running on 110V shore power, Temp Setting on '5'
Freezer
START
cooling
HERE
properly?
NO
Ammonia
smell?
NO
Is Frig out of
level more
Than slightly?
NO
Fan
On backside
Of frig
stopped?
NO
External temp
> 95 degrees?
NO
Run for 1-2 days
On LP instead of
Electric
Freezer
cools ok in
LP mode?
NO
Get service to test
Cooling unit per
Dometic specs
1. Add ventilator fan kit 3108705.744 (or equivalent) and check that baffle is directing air across the condenser fins before exiting top vent.
2. Flap mounting brackets: new part #s 3851102024 and 3851103022
3. User manual has instructions on replacing electric heating unit. With heater leads removed, element should show 40-70 ohms
Dometic RM1350 Troubleshooting Flowchart
Freezer should cool to
YES
around 0 degrees F. Ice
cream should be hard.
Probably need
YES
new cooling unit
Level trailer, espec
YES
Front-to-rear.
YES Repair/replace fan
Improve airflow
YES
1
On back of frig
Electric Boiler
YES
3
needs service .
Were doors
open for more
YES
than 30
seconds?
NO
Problem
Restart auto-defrost cycle.
Happens only
YES At 4PM, cut all AC and DC
every few
days?
NO
Is frig full &
tightly packed
With food?
YES
NO
YES
Are
large items
blocking air
circulation
NO
Endcap
missing from YES
Drain hose?
NO
Left
door flap
YES
not closing
tightly?
NO
Dollar bill
Pulls thru seals YES
easily
NO
Thermistor
YES
Near fins?
Allow several hours to
reach normal temp
power, then restart frig.
Leave room for air
circulation and add small
fan to shelf
Replace endcap
Install improved
flap mounting
2
brackets
Adjust doors or fix/
replace seals
If adjustable, move
away from fins
Dan Mayer