ENERGIE
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HP Protection
E11
The high-pressure switch is
broken
Check the pressure switch and
cold circuit
LP Protection
E12
The low-pressure switch is
broken
Check the pressure switch and
cold circuit
Anti-freezing Prot
E171
Use side water system temp.
is low
1.
Check the water temp. or
change the temp. Sensor
2.
Check the pipe water flow and
whether water system is
jammed or not
Prim Anti-freezing Prot
E19
The ambient temp. is low
Secondary Anti-freezing
Prot
E29
The ambient temp. is low
DC Fan Motor 1 Failure
F031
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
Check the wire connection and
make sure they are in good
contact
DC Fan Motor 2 Failure
F032
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
Check the wire connection and
make sure they are in good
contact
Fan motor speed controller
failure.
E081
Communication failure
between the control board
and the fan speed
management module.
Damaged fan speed
management module.
1.
Check the electrical
connections;
2.
Check the fan speed
management module.
Protection/fault
Fault
display
Reason
Elimination methods
IPM Overcurrent
Shutdown Fault
F00
IPM Input current is large
Check and adjust the current
measurement
Compressor Activation
Failure
F01
Lack of phase, step or
drive hardware
damage
Check the measuring voltage
check requency conversion
board hardware
PFC Fault
F03
The PFC circuit
protection
Check the PFC switch tube
short circuit or not
DC Bus Overload
F05
DC bus voltage>Dc bus
over-voltage protection
value
Check the input voltage
measurement
DC Bus Underload
F06
DC bus voltage<Dc bus
over-voltage protection
value
Check the input voltage
measurement
AC Input Underload
F07
The input voltage is low,
causing the input current
is low
Check the input voltage
measurement