R3250Hz Universal Outdoor Series Technical Manual
133
GD Chigo Heating & Ventilation Equipment Co., Ltd.
9.2Three-phase unit
Error code display
Display
Definition of fault or protection
Remark
E1
Three-phase power phase sequence fault
E2
Communication fault between the outdoor unit and
themast
Communication is interrupted for more than 2
minutes 20minutes after the initial pow er-on or
within 20 minutes
E4
Temperature sensor fault
E6
Condenser pipe temperature sensor fault
E9
AC over-voltage / under-voltage protection
E10
EEPROM fault
H0
Master chip and DSP communication fault
H4
Display P6 protection for 3 times within 30 minutes Unable to restore unless a second power-on
H5
Display P2 protection for 3 times within 30 minutes Unable to restore unless a second power-on
H6
Display P4 protection for 3 times within 100
minutes
Unable to restore unless a second power-on
H9
Display P9 protection for 2 times within 10 minutes Unable to restore unless a second power-on
H10
3 times of P3 protection occurs within 60 minutes
Unable to restore unless a second power-on
P1
High pressure protection
P2
Low pressure protection
Display H5 after 3 times of P2 protection within
30
minutes
P3
Primary / secondary over current protection
P4
Exhaust overheating protection
3 time of P4 protection appears within 100
minutes and
then H6 occurs
P5
High pipe temperature protection
P6
Module protection
3 times of P6 protection appears within 30
minutes and
then H4 occurs
P9
DC fan fault
Display H9 after 2 times of P9 protection within
10
minutes
P10
Anti-typhoon protection
P11
Refrigeration T2 overheating protection
L0
DC compressor module fault
L1
DC bus low voltage protection
L2
DC bus high voltage protection
L4
MCE fault / sync / closed loop
L5
Zero speed protection
L7
Phase sequence error protection
L8
15Hz protection
