High Pressure Switch Failure - Haier AU082FYCRA(HW) Service Manual

[30] High pressure switch failure

If connection between pressure
switch and connecting board is
good
If the system pressure meets the
condition that pressure switch
Make pressure switch
close, measure if terminal
is conductive by multimeter
If the system is clogged
Make pressure switch terminal
on connecting board in short
circuit, check if failure exists
still
Replace pressure switch and
measure again
Y
shuts off
Y
Y
N
N
N
Re-connect
N
Replace pressure switch
N
Replace pressure switch
Y
Check the piping system
Y
Replace connecting board
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