Haier 1U12AP2VHA - IPM Protection; Outdoor Unit Display; LED1 Flashes 2 Times; Over-Current of the Compressor

ERROR CODES & PROBLEM SOLVING
PAGE 33
ENGLISH
IPM Protection
Outdoor Display
LED1 Flashes 2 Times
Under this error, please ensure the refrigerant system
pressure is normal with no blockages, then replace power
module
Spare Parts:
Power module
Refrigerant
Turn the unit on.
Is the error displayed before
the compressor starts?
The power module is faulty,
replace the module
Problem persists?
Check for proper
refrigerant charge
The compressor starts normally, but
malfunctions are reported after it has
operated for a period of time.
No
Yes
Yes
Yes
Yes
Over-current of the Compressor
Outdoor Display
LED1 Flashes 3 or 24 or 25 Times
Spare Parts:
Power module
Refrigerant
The compressor starts
normally, but malfunctions are
reported after it has operated
for a period of time.
Correct the power supply
Turn the unit on.
Is the error displayed before
the compressor starts?
Is the power supply
voltage normal?
Check the refrigerant
charge
The power module is
faulty, replace the power
module
Yes Yes
Yes
No
No