Controller failure
Compressor current
protection
Communication failure
between controller and
main board
Communication failure
between Main control
board and Driving board
VDC voltage too high
protection
IPM module protection
1. Signal is not well connected or damaged
EE06
2. Controller failure
1. The compressor current is too large
instantaneously
2. Wrong connection for compressor phase
sequence
EE07
3. Compressor accumulations of liquid and
oil lead to the current becomes larger
4. Compressor or driver board damaged
5. The water flow is abnormal
6. Power fluctuations within a short time
1. Signal wire is not well connected or
damaged
EE08
2. Controller failure
3. Driving failure
1. Poor connection of communication wire
EE09
2. PCB failure
3. The wire is damaged
1. Line voltage is too high
EE10
2. Driver board is damaged.
1. Data mistake
2. Wrong compressor phase connection
3. Compressor liquid and oil accumulation
EE11
lead to the current becomes larger
4.Poor heat dissipation of drive module or
high ambient temperature
5. Compressor or driver board damaged
4. Change a new exhaust temp. sensor
d6-TH3
5. Check whether the current ambient
temp. and water temp. are beyond the
running temp. of the machine
1. Stop the power supply and restart.
2. Re-connect the signal wire or replace a
new one
3. Replace a new controller
1.Check if the power in the normal range
2. Check the compressor
3. Check the compressor phase
4. Check the phase sequence connection
5. Check the waterway system and
filtration pump
6. Check mains power input
1. Stop the power supply and restart.
Re-connect the signal wire or replace a
new one
2. Check the controller or replace a new
one
3. Check the driving system or update it.
4. Check the driving system or update it.
1. Stop the power supply and restart.
2. Reconnect the communication wire or
replace a new one
3. Check the wirings according to the
electric diagram
4. Replace a new PCB
1. Check whether the power supply is
normal
2. Change driver board or main board
1. Program error, turn off electricity
supply and restart after 3 minutes
2. Check compressor sequence
connection
3. Check the pressure of system by
pressure gauge
4. Check if the ambient and water
temperature is over high
5. If it is the refrigerant system failure,
22