Revision Date
– 22/12/2014
page 30
Using an AC voltmeter, check that the same AC
voltage is measured between the live “L” and
neutral “N” terminals on the output side of the
main circuit board as shown.
NOTE: The main circuit board has been
removed from the fridge for clarity only.
This test should be performed with the
circuit board installed in the fridge.
TEST PASS
– AC POWER IS MEASURED ON BOTH SIDES OF THE MAIN CIRCUIT BOARD
The same AC power measurement is recorded across both the input and output pins of the main
circuit board. In this case, the AC power section of the main circuit board is functioning correctly.
The main circuit board has now been eliminated as a possible fault.
TEST FAIL
AC POWER IS ONLY MEASURED ON THE INPUT SIDE OF THE MAIN CIRCUIT BOARD
AC power is measured across the input pins of the main circuit board but not across the output pins. In
this case, it is likely that the main circuit board is faulty.
The main circuit board should be replaced and the test repeated (refer to section
Output “L”
Output “N”
