High Pressure Switch Shutoff Failure; Protection Of Discharging Temp.too High - Haier AV08NMSETA Service Manual

[30] High pressure switch shutoff 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

[34] Protection of discharging temp.too high

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
If sensor terminal is fixed
well
Yes
If sensor resistor
/characteristic is proper
Yes
If the system is
lack of refrigerant
No
Replace connecting
board
No
No
Replace pressure switch
No
Yes
Check the piping system
Yes
Replace connecting board
No
No
Replace sensor
Yes
Charge refrigerant
62 62
Re-connect
Reconnect