Trane TVR Pro CO Series Service Manual page 56

1 Error Code Table
Table 6-1.1: Error code table
Error
code
1
E0 Communication error between outdoor units
E2 Communication error between indoor and master unit
Outdoor heat exchanger temperature sensor (T3) error or
E4
outdoor ambient temperature sensor (T4) error
E5 Abnormal power supply voltage
Compressor top or discharge pipe temperature sensor
E7
(T7C1/T7C2) error
E8 Outdoor unit address error
xE9 EEPROM mismatch
xF1 DC bus voltage error
XF6 Electronic expansion valve connection error
Communication error between main control chip and inverter
xH0
driver chip
H2 Number of slave units detected by master unit has decreased
H3 Number of slave units detected by master unit has increased
xH4 Inverter module protection
H5 P2 protection appears three times in 60 minutes
H6 P4 protection appears three times in 100 minutes
Number of indoor units detected by master unit not same as
H7
number set on main PCB
H8 High pressure sensor error
xH9 P9 protection appears ten times in 120 minutes
yHd Slave unit malfunction
C7 PL protection appears three times in 100 minutes
P1 Discharge pipe high pressure protection
P2 Suction pipe low pressure protection
P4 Discharge temperature protection
P5 Outdoor heat exchanger temperature protection
xP9 Fan module protection
Content Remarks
Only displayed on the slave unit
with the error
Only displayed on the master unit
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Refer to Note 3
Displayed on the unit with the error
Only displayed on the master unit
Only displayed on the master unit
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Only displayed on the master unit
Displayed on the unit with the error
Displayed on the unit with the error
Only displayed on the master unit
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
Displayed on the unit with the error
55
Manual re-start
required
2
No
No
No
No
Yes
Yes
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
Yes
No
Yes
No
No
No
No
No
Table continued on next page ...