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Protection display table for indoor unit
Our company provides the thoughtful services for customer. Air conditioners had been installed self
diagnosis system to display the information for the units.
Protection content
Indoor unit display status
Code
LED indoor unit without the nixietube
Running lamp
flashing frequency
Tiiming lamp
flashing frequency
Evaporator temperature protection
P1
lighten
1
Overheat. Oover current protection of
inverter module
P2
lighten
2
Over current protection
P3
lighten
3
Compressor discharging temperature
protection
P4
lighten
4
Overheat of compessor top protection
P5
lighten
5
Compressor suction temperature
protection
P6
lighten
6
Power supply over(low) current/overflow)
voltage protection
P7
lighten
7
High pressure of discharge protection
P9
lighten
9
High temperature of condenser protection
PA
lighten
10
High temperature of outdoor ambient
protection
PC
lighten
11
Other protection
PF
lighten
12
Note: Above self check information is commonly applicable in our most air conditioners, but some
are special, you can refer to the User’s Manual for infomnation or contact the dealer or authorized
maintenance people for help.