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To keep the refrigerator working properly, a qualified service technician should, at least once a year,
inspect the connections, the control system, the LP gas pressure and flue baffle. The service and mainte-
nance described in this section is to be performed by service personnel only.
MAINTENANCE & SERVICE
PERIODIC MAINTENANCE
Checking the control system
Check the control system by connecting/disconnecting the
120V AC power, starting/stopping the engine, etc.
Checking the connections
Check all connections in the LP gas system (at the
back of the refrigerator) for gas leaks. The LP gas
supply must be turned on.
Apply a non-corrosive bubble solution to all LP gas
connections. The appearance of bubbles indicates a
leak and should be repaired immediately by a quali-
ed serviceman.
Checking the LP gas pressure
The LP gas pressure should be checked and the main regulator
readjusted if pressure is incorrect. The correct operating pres-
sure is 11 inches of water column. Measure the LP gas pressure
at the test port, just ahead of the burner jet.
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Gas equipment assembly
ELECTRIC EQUIPMENT
Heater
The heat necessary for the operation of an absorption cooling
unit is supplied by an electric heater mounted in a pocket of the
boiler system.
2-way models are equipped with one electrical heater for
120 V AC.
3-way models are equipped with two electrical heaters - one for
120V AC and one for 12V DC.
Replacing the heater
To replace the heater, follow these steps:
Turn off the refrigerator.
Unplug the power cord and disconnect the
12V DC power.
Remove the power module cover.
Disconnect the heater leads.
With a pair of pliers, unfold the lug holding the lid
of the boiler casing. Open the lid.
Remove some insulation wool for the heater to be
accessible.
Turn and lift the heater out of its pocket.
Fit the new heater into the pocket.
Connect the leads and ret the power module cover.
Put back the insulation wool.
Close the lid of the boiler.
Fuses
2-way models are equipped with 2 fuses - one for the refrig-
erator control system and one for the AC heater.
3-way models are equipped with 3 fuses - two fuses in the
power module and one in-line blade fuse.
Control system 3 A
AC heater 5 A
12 V DC heater 30 A
Replacing the fuses
To replace the fuses, follow these steps:
Turn off the refrigerator.
Unplug the power cord and disconnect the
12V wires.
Remove the power module cover.
Snap the fuse out of the fuse holder.
Fit the new fuse in to the fuse holder.
Put back the power module cover.
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EXPLOSION HAZARD. Never use an open
ame to check for gas leaks. Failure to heed this
warning could cause an explosion resulting in
death or severe personal injury.
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