Note: As the static pressure is divided into low static pressure and high
static pressure, corresponding to different speeds, when setting as low static
pressure, then items 7-18 are set as the low static pressure speed values; when
setting as high static pressure, the items are set as the high static pressure
values.
4. Description of DIP Switch:
1
2
5. Fault Code Description
Note: If there is a conflict between a wire controller fault and an internal
unit fault, please prevail with the internal unit fault.
Five core communication:
Fault code table for ON-OFF series
Display
Fault Description
Indoor fan stall protection
F0
Outdoor protection
F2
High pressure protection
F3
F4
Low pressure protection
F5
Water fullfilled protection
Outdoor unit over-current protection
F7
Outdoor unit exhaust temperature
F8
over-high protection
Fault code table for VRF indoor unit
Display
Fault Description
Communication failure of indoor and
E1
outdoor unit
Room temperature sensor failure(T1)
E2
Tube temperature midpoint sensor
E3
failure(T2)
Tube temperature outlet sensor
E4
failure(T2B)
ON
With power-off memory
Reserved
OFF
Without power-off memory
Reserved
Display
Three-phase electricity phase
F9
sequence failure
Communication failure of indoor and
E0
outdoor unit
Indoor unit and wire controller
E1/E9
communication failure
Room ambient temperature
E2
sensor(T1) failure
Evaporator tube temperature
E3
sensor(T2) failure
Condenser tube temperature
E5
sensor(T3) failure
P6
Indoor unit EEPROM failure
Display
Wind testing fault of PG electric motor
E8
E9
Communication fault of wire controller
EA
Outdoor unit current fault
Eb
Outdoor unit IPM fault
09
Fault Description
Fault Description
V.1