High Pressure Protection - Haier AV08NMSETA Service Manual

[40] High pressure protection

If in heating indoor fan
motor runs normally
and if filter is clogged
If characteristic
of high pressure
sensors are normal
Yes
If stop valve
opens fully
Yes
If in cooling
outdoor fan motor
runs normally
Yes
No
Check if piping
system is clogged
No
Replace pressure sensor
No
Open stop valve
No
Check fan motor
Yes
Check indoor
Yes
Clear the piping
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