55
1 Error Code Table
Table 6-1.1: Error code table
Error
code
1
Content Remarks
Manual re-start
required
2
E0 Communication error between outdoor units
Only displayed on the slave unit
with the error
No
E2 Communication error between indoor and master unit Only displayed on the master unit No
E4
Outdoor
heat exchanger temperature sensor (T3) error or
outdoor ambient temperature sensor (T4) error
Displayed on the unit with the error No
E5 Abnormal power supply voltage Displayed on the unit with the error No
E7
Compressor top or discharge pipe temperature sensor (T7C1/2)
error
Displayed on the unit with the error Yes
E8 Outdoor unit address error Displayed on the unit with the error Yes
xE9 EEPROM mismatch Displayed on the unit with the error Yes
xF1 DC bus voltage error Displayed on the unit with the error No
F3
Plate heat exchanger cooling refrigerant outlet temperature
sensor (T6B) error
Displayed on the unit with the error No
F5
Plate heat exchanger cooling refrigerant inlet temperature sensor
(T6A) error
Displayed on the unit with the error No
xF6 Electronic expansion valve connection error
Displayed on the unit with the error
Refer to Note 3
Yes
xH0
Communication error between main control chip and inverter
driver chip
Displayed on the unit with the error No
H2 Number of slave units detected by master unit has decreased Only displayed on the master unit No
H3 Number of slave units detected by master unit has increased Only displayed on the master unit No
xH4 Inverter module protection Displayed on the unit with the error Yes
H5 P2 protection appears three times in 60 minutes Displayed on the unit with the error Yes
H6 P4 protection appears three times in 100 minutes Displayed on the unit with the error Yes
H7
Number of indoor units detected by master unit not same as
number set on main PCB
Only displayed on the master unit No
H8 High pressure sensor error Displayed on the unit with the error No
H9 P9 protection appears ten times in 120 minutes Displayed on the unit with the error Yes
yHd Slave unit malfunction Only displayed on the master unit No
C7 PL protection appears three times in 100 minutes Displayed on the unit with the error Yes
P1 Discharge pipe high pressure protection Displayed on the unit with the error No
P2 Suction pipe low pressure protection Displayed on the unit with the error No
xP3 Compressor current protection Displayed on the unit with the error No
P4 Discharge temperature protection Displayed on the unit with the error No
P5 Outdoor heat exchanger temperature protection Displayed on the unit with the error No
xP9 Fan module protection Displayed on the unit with the error No
Table continued on next page …
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