Norsup 7021075 Mode D'emploi page 29

Communication
failure between the
EE 08
controller and the
main board
Communication
failure between
EE 09
Main board and
driver board
VDC voltage too
EE 10
high protection
IPM module
EE 11
protection
VDC voltage too low
EE 12
protection
Input current over
EE 13
high protection.
IPM module
EE 14 thermal circuit is
abnormal
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. Poor signal wire connection
or damaged signal wire
2. Controller malfunction
1. Poor connection
communication wire
2. The wire is damaged
1. Mother line voltage is too
high
2. Driver board is damaged.
1. Data mistake
2. Wrong compressor
connection
3. Compressor liquid and oil
accumulation lead
current becomes larger
4. Compressor or driver board
damaged
1. Mother line voltage is too
low
2. Driver board is damaged.
1. The compressor current is
too large momentary
2. The water flow is abnormal
3. Power fluctuations within a
short time
4. Wrong PFC inductor
1. Output abnormity of IPM
module thermal circuit
2. Fan motor is abnormal or
damaged
3. Fan blade is broken
26
1. Check and re-connect the signal wire
2. Change a new signal wire
3. Turn off electricity supply and restart
machine
4. Change a new controller
of
1. Check the wire connection
2. Change a new wire
1. Check if the power is in the normal
range
2. Change driver board or main board
phase
1. Program error, turn off electricity
supply and restart after 3 minutes
2. Change driver board
to the
3. Check
connection
1. Check if the power is in the normal
range
2. Change driver board
1. Check the compressor
2. Check the waterway system
3. Check if the power is in the normal
range
4. Check if the correct PFC inductor is
used
1. Change a driver board
2. Check if the motor speed is too low or
fan motor damaged, change another one
3. Change another fan blade
compressor sequence