Service manual

Bulletin #46 continued
In closing,
there are two more external parts that can cause problems with your AES
refrigerator.
First, if your propane supply to your refrigerator is depleted, no cooling
on gas will take place and the red indicator light will flash.
When it is noticed that the
indicator light is flashing red, always check your fuel supply first. The second external
part that may be causing the problem with the control system is the 12 volt battery. If
a weak or dead battery is used to operate the refrigerator, the AES controls will not
function properly. N
O cooling or bad cooling on gas, electric and 12 volt will occur, if
the battery is discharged or shorted. If the battery drops below 9.5
(+- 1) volts, the
refrigerator will only be operational on gas.
It has also been noted that the AES will
often overcool with a weak battery in line.
No indicator or interior light and no control
functions indicate a weak or dead battery.
Remember, without a constant 12 volt source
to the refrigerator, the system will not work on 120 or 12 volt or on gas.
Some corrosion on the circuit boards resulting in malfunctions have been caused by water
or car wash solution being sprayed onto the back of the refrigerator through the side
vent door louvers.
Sealing the circuit board enclosure should prevent recurrence;
however, the owner should be made aware of this situation.
If you run into any problems that are not addressed here,
please contact our Technical
Services Department available to all Dealers, Service Centers and
OEM's.
A-9-5