Revision Date – 15/07/2020 page 25
8.2 Test AC Rectifier
WARNING: This test should only be performed by a licensed electrician.
Both the DC power supply and AC power supply are controlled via the AC rectifier unit. If the fridge is
not receiving adequate power from the supply source, it is recommended to first eliminate the AC
rectifier as the possible cause.
Remove the front cover as described in Section
9.3.
Plug the AC power plug into the front of fridge and
turn the fridge on.
WARNING:
Certain components inside the fridge will be
live 100-240VAC. Contact with these
components may cause serious injury or
death. Please be very careful not to contact or
touch any components other than described
in this instruction.
Take a multimeter and set the display to DC
voltage.
Locate the compressor control unit on the left
hand side of the fridge connected to the
compressor.
With the multimeter terminals, insert the negative
terminal into the black wire at the top “-“.
Insert the positive terminal into the red wire,
second from the top “+”.
The multimeter will display the voltage produced
from the AC rectifier. Typically, this voltage
should be 24VDC which indicates the AC rectifier
is working correctly for AC rectification.
The 12VDC will also need to be checked. Please
follow the steps below to complete this test.
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