7
Primary / secondary over-current protection
P3
High discharge temperature protection
P4
High condenser temperature protection
P5
IPM module fault
P6
IDU anti-frosting protection
P7
High IPM temperature protection
P8
Outdoor unit fan motor stall protection
P9
High evaporator temperature protection
P11
DC bus low voltage protection
L1
DC bus high voltage protection
L2
MCE fault / sync / compressor start fault
L4
Zero speed protection
L5
Phase sequence error protection
L7
Compressor stall fault
L8
Frequency limitation because of voltage
LA
Frequency limitation because of evaporator temperature
LB
Frequency limitation because of condenser temperature
LC
Frequency limitation because of discharge temperature
LD
Frequency limitation because of high IPM temperature
LE
Frequency limitation because of current
LF
2
.4 Spot check
⚫
Method 1: After powering on 5s, long press the button in indoor unit PCB for 5s, to enter spot
check. And then short press this button to read more parameters.
⚫
Method 2: After powering on, press “up & down swing” and “left & right swing” button alternately
5 times within 10 seconds to enter spot check. Press “up & down swing” and “left & right swing”
button to read more parameters.
⚫
Spot check table:
