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User
Manual
65
6.2 Table of Display Codes for U-match unit
6.2.1 Table of Error Codes of Outdoor Unit
Error
Code
Content
Error
Code
Content
E4
Discharge Protection
LA
Outdoor Fan 2 Error
H4
Overload Protection
L3
Outdoor Fan 1 Error
PA
ODU AC Current
Protection
E3
System Low Pressure
Protection
H5
Module Current Protection
E1
System High Pressure
Protection
P8
Module Temperature
Protection
U3
DC Bus Voltage Drop Error
E2
Freeze Protection
U5
Current Detecting Error of
Complete Unit
L9
High Power Protection
PU
Capacitor Charging Error
U2
Compressor Phase
Loss/Phase Reversal/Out
of Phase
U1
Compressor Phase Current
Circuit Detecting Error
HC
PFC Overcurrent Error
H7
Compressor
Non-synchronism
PH
High Voltage Protection of
DC Bus
HE
Compressor
Demagnetization Protection
PL
Low Voltage Protection of
DC Bus
LE
Compressor Stalling
Lc
Startup Failure
P6
Drive Board Communication
Error