[30] High Pressure Switch Failure - Haier AU042FPERA Service Manual

[30] High pressure switch failure

If connection between pressure
switch and connecting board is
If the system pressure meets the
condition that pressure switch
is conductive by multimeter
Make pressure switch terminal
on connecting board in short
circuit, check if failure exists still
good
Yes
shuts off
Yes
Make pressure switch
close, measure if terminal
Yes
If the system is clogged
No
No
Replace pressure switch
and measure again
No
No
Replace pressure switch
No
Yes
Check the piping system
Yes
Replace connecting board
48
Re-connect