R410A Full DC Inverter Split Duct Type Technical Manual MCAC-UTSM-201503
37
8. Trouble shooting
8.1 Outdoor unit malfunction and protection codes
Error
/code
Content
Note
E1
Phase sequence error
E2
Indoor & outdoor unit communication error
E4
Ambient temperature T4/pipe temperature T3 sensor
error
E5
Voltage error
E7
Discharge sensor error
E8
Outdoor unit address is wrong
E9
Eeprom error
H0
IR341 and main control chip communication error
H1
0537 and main control chip communication error
H4
Three times P6 protection in 60 minutes
H5
Three times P2 protection in 60 minutes
H6
Three times P4 protection in 100 minutes
H8
High pressure sensor error
Discharge pressure less than or equal to 0.3MPa
H9
Three times P9 protection in 60 minutes
P0
Top temperature protection of compressor
Display H6, if three times in 100 minutes
P1
High pressure protection or high temperature protection
of discharge sensor
P2
Low pressure protection
Display H5, if three times in 60 minutes
P3
Over-current protection of compressor
P4
Discharge temperature protection
Display H6, if three times in 100 minutes
P5
Pipe temperature protection
P6
Inverter module protection
Display H4, if three times in 60 minutes.
P9
DC fan module protection
Display H9, if three times in 60 minutes
L0
Inverter module error
L1
DC generatrix low voltage error
L2
DC generatrix high voltage error
L4
MCE error/ synchronization/ closed loop
L5
Zero speed protection
L7
Phase sequence error
L8
Frequency difference in one second more than 15Hz
protection
L9
Frequency difference between the real and the setting
frequency more than 15Hz protection
Содержание HIGH POWER HTWC200IX41T3
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