Parameter list and breakdown table
Protect/fault
Inlet Temp. Sensor
Fault
Outlet Temp. Sensor
Fault
Ambient Temp. Sensor
Fault
Coil 1 Temp. Sensor
Fault
Coil 2 Temp. Sensor
Fault
Suction Temp. Temp.
Sensor Fault
Discharge Temp.
Sensor Fault
Exhaust Air over Temp
Prot.
Antifreeze Temp.
Sensor Fault
Pressure Sensor Fault
High Pressure Prot.
Low Pressure Prot.
Flow Pressure Prot.
Waterway Anti-freezing
Prot.
Inlet and outlet temp.
too big
Anti-freezing Prot.
Primary Anti-freezing
Prot.
Secondary
Anti-freezing Prot.
Comp. Overcurrent
Prot.
Communication Fault
Communication Fault
(speed control module)
Low AT Protection
EC fan feedback Fault
Fan Motor1 Fault
Fan Motor2 Fault
Fault
Reason
display
The temp. sensor is broken or short
P01
circuit
The temp. sensor is broken or short
P02
circuit
The temp. sensor is broken or short
P04
circuit
The temp. sensor is broken or short
P05
circuit
The temp. sensor is broken or short
P15
circuit
The temp. sensor is broken or short
P07
circuit
The temp. sensor is broken or short
P081
circuit
P082
The compressor is overload
Antifreeze Temp. sensor is broken or
P09
short circuit
PP
The pressure sensor is broken
E01
The high-pressure switch is broken
E02
The low-pressure switch is broken
E03
No water/little water in water system
E05
Water temp. or ambient is too low
Water flow is not enough and low
E06
differential pressure
E07
Water flow is not enough
E19
The ambient temp. is low
E29
The ambient temp. is low
E051
The compressor is overload
Communication failure between wire
E08
controller and mainboard
Speed control module and main
E081
board communication fail
TP
Ambient temp. is too low
There is something wrong with fan
F051
motor and fan motor stops running
1
Motor is in locked-motor state
2
The wire connection between
F031
DC-fan motor module and fan
motor is in bad contact
1
Motor is in locked-rotor state
2
The wire connection between
F032
DC-fan motor module and fan
motor is in bad contact
Elimination
Check or change the temp. sensor
Check or change the temp. sensor
Check or change the temp. sensor
Check or change the temp. sensor
Check or change the temp. sensor
Check or change the temp. sensor
Check or change the temp. sensor
Check whether the system of the
compressor running normally
Check or change the temp. sensor
Check or change the pressure sensor or
pressure
Check the pressure switch and cold
circuit
Check the pressure switch and cold
circuit
Check the pressure switch and cold
circuit
Check the water temp. and ambient temp.
Check the pipe water flow and whether
water system is jammed or not
Check the pipe water flow and whether
water system is jammed or not
Check the ambient temp. sensor
Check the ambient temp. sensor
Check whether the system of the
compressor running normally
Check the wire connection between
remote wire
controller and main board
Check the communication connection
Check the ambient temp. sensor
Check whether fan motor is broken or
locked or not
1
2
1
2
35
Change a new fan motor
Check the wire connection and
make sure they are in good contact
Change a new fan motor
Check the wire connection and
make sure they are in good contact