24
Inverter Drive and
the Main
Controller
Radiator Temp
Sensor Error
P7
/
/
Flash 18
times
P7
P7
Drive Error
Radiator Overheat
Protection
P8
/
/
Flash 19
times
P8
P8
Drive Error
AC Contactor
Protection
P9
/
/
/
P9
P9
Drive Error
Sensor
Connection
Protection
Pd
/
/
/
Pd
Pd
Drive Error
Over Voltage
Protection
PH
/
Flash 11
times
/
PH
PH
Drive Error
Low Voltage
Protection
PL
/
/
Flash 21
times
PL
PL
Drive Error
Temp Drift
Protection
PE
/
/
/
PE
PE
Drive Error
Drive Board
Ambient Temp
Sensor Error
PF
/
/
/
PF
PF
Drive Error
Charging Circuit
Error
PU
/
/
Flash 17
times
PU
PU
Drive Error
Unit n
communication
error
See
Table 16
Flash 6
times
/
/
E6
E6
Indoor
Unit n indoor pipe
midway
temperature
sensor error
See
Table 16
/
Flash twice
/
E2
E2
Indoor
Indoor Evaporator
Temp Sensor
Short/Open-Circuit
See
Table 16
/
Flash twice
/
F2
F2
Indoor
(Air Valve) Unit n
indoor unit pipe
outlet temperature
sensor error
See
Table 16
/
Flash 22
times
/
b7
b7
Indoor
(Liquid Valve)
Unit n indoor pipe
inlet temperature
sensor error
See
Table 16
/
Flash 19
times
/
b5
b5
Indoor
Unit n mode
conflict
See
Table 16
/
Flash once
/
F1
F1
Indoor
Mode Conflict
See
Table 16
Flash 7
times
/
/
E7
E7
Indoor