Operation and Use
Protect/fault
Reason
Elimination methods
Fault
display
Standby
Non
Normal boot
Inlet Temp Sensor Fault
The temp. Sensor is broken
or
short circuit
Check or change the temp. Sensor
P01
Outlet Temp Sensor Fault
The temp. Sensor is broken
or short circuit
Check or change the temp. Sensor
P02
Coil temp Sensor Fault
The temp. Sensor is broken
or short circuit
P153
The temp. Sensor is broken
or short circuit
AT Sensor Fault
P04
Suction temp Sensor Fault
P17
EVI Inlet Temp Sensor Fault
EVI Outlet Temp Sensor Fault
P002
P001
Exhaust temp Sensor Fault
Exhaust Overtemp Fault
Exhaust Pressure Sensor Fault
Suction Pressure Sensor Fault
P181
P182
Hotwater Temp Sensor Fault
P032
PP1
PP2
Low AT Protection
TP
Non
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
The temp. Sensor is broken
or short circuit
The temp. Sensor is broken
or short circuit
The temp. Sensor is broken
or short circuit
Check or change the temp. Sensor
The temp. Sensor is broken or
short circuit
The temp. Sensor is broken or
short circuit
Check or change the temp. Sensor
Check or change the temp. Sensor
The pressure Sensor is broken
or short circuit
The pressure Sensor is broken
or short circuit
Check or change the pressure Sensor or
pressure
Check or change the pressure Sensor or
pressure
The ambient temp. is low
The ambient temp. is low
The ambient temp. is low
1. Motor is in locked-rotor state
2.The wire connection between
DC-fan motor module and fan
motor is in bad contact
1. Motor is in locked-rotor state
2.The wire connection between
DC-fan motor module and fan
motor is in bad contact
1.Change a new fan motor
2.Check the wire connection and make sure
they are in good contact
1.Change a new fan motor
2.Check the wire connection and make sure
they are in good contact
Use side water system temp. is low
1. Check the water temp. or change the
temp. Sensor
2.Checkthe pipewater flowand whether
watersystem is jammedor not
F031
The compressor is overload
Check whether the system of the compressor
running normally
2.Parameter list and breakdown table
2.1 Electronic control fault table
Can be judged according to the remote controller failure code and troubleshooting
E04
E11
E29
E051
E12
E032
E081
E19
Flow Switch Protection
Communication Fault(Fan )
Prim Anti-freezing Prot
Electric Overheat Protection
HP Protection
Secondary Anti-freezing Prot
Compressor Overcurrent
Shutdown
Fault
LP Protection
Communication Fault
Anti-freezing Prot
E08
E171
DC Fan Motor 1 Failure
DC Fan Motor 2 Failure
F032
The high-pressure switch is
broken
The low-pressure switch is
broken
Check the pressure switch and cold circuit
Check the pressure switch and cold circuit
No water/little water in water
system
Check the pipe water flow and water pump
The compressor is overload
Check whether the system of the compressor
running normally
Communicat ion failure between
wire controller and mainboard
Check the wire connection between remote
wire controller and main board
Speed control module and main
board communication fail
Check the communication connection
The
protection
switch is broken
electric-heater
Check to see whether the electric heater
has been running under the temperature
over 150
for a long time
2
3
