Maintenance & Service; Replacing / Resetting The Fuses; Periodic Maintenance - Dometic DM2652 Operating Instructions Manual

MAINTENANCE & SERVICE
 T o keep the refrigerator working properly, a quali-
fied service technician should, at least once a year,
inspect the connections, the control system, the LP
gas pressure and flue baffle.
 FIRE OR INHALATION HAZARD. If refrig-
erator stops working and/or it emits an ammonia smell,
immediately turn refrigerator OFF (if it is safe to do so),
leave the vicinity, and contact a qualified Service Center.
A high concentration of ammonia refrigerant could cause
an inhalation hazard, could cause chemical burns to the
skin and eyes, and could cause a fire resulting in death or
serious injury.
A.

Replacing / Resetting The Fuses

2-way models are equipped with 2 fuses - one for
the refrigerator control system and one for the AC
heater.
 T he fuse for the control system is a resettable
fuse and can NOT be replaced.
If the resettable fuse has been tripped, deter-
mine and remedy the cause. Once this has
been done, reset the control system fuse by
pressing the ON / OFF button to OFF, wait 5
seconds, and then back ON.
3-way models are equipped with 3 fuses -
two fuses in the power module and one in-
line blade fuse.
Control System
AC Heater
12 Vdc Heater
REPLACING THE FUSES
Power Module
To replace the fuses, follow these steps:
1.  T urn off the refrigerator and unplug the power
cord and disconnect the 12V wires.
2. Remove the power module cover.
3. Snap the fuse out of the fuse holder and fit the
new fuse in to the fuse holder.
4. Put back the power module cover.
DM2652 (OPTIONAL FAN), DM2852 (OPTIONAL
FAN) & DM2862 (OPTIONAL FAN):
Inline Fuse
The inline fuse for the power vent fans is connected
to the 12V DC socket.
To replace the inline fuse, follow these steps:
1.  D isconnect 12V DC power.
2. Open the fuse holder. See (FIG. 14).
3 A
5 A
30 A
13
FIG. 14
3. Replace the fuse. See (FIG. 15).
FIG. 15
4. Put the holder back together. See (FIG. 16).
FIG. 16
B.

Periodic Maintenance

 T o be performed by a qualified service techni-
cian only.
CHECKING THE LP GAS CONNECTIONS
1.  C heck all connections in the LP gas system (at
the back of the refrigerator) for gas leaks. The
LP gas supply must be turned on.
2. Apply an approved leak detection solution to all
LP gas connections. The appearance of bubbles
indicates a leak and should be repaired imme-
diately!
 FIRE OR EXPLOSION HAZ-
ARD. NEVER use an open flame to check for
gas leaks. Failure to obey this warning could re-
sult in death or serious injury.
CHECKING THE CONTROL SYSTEM
Check the control system by connecting/discon-
necting the 120 VAC power, starting/stopping the
engine, etc.
CLEANING THE BURNER
1.  T urn off the refrigerator.
2. Unplug the power cord from the 120 VAC out-
let. Disconnect the wires or shut off the 12 VDC
power supply to the refrigerator.
3. Turn off the manual shut off valve.
4. Remove cover from burner housing.
5. Clean the burner tube with a brush. Blow out the
burner with compressed air.