Hydro-Pro 7024515 - Page 29

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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
4. Check the phase sequence
connection
EE 08
Communication
failure between the
controller and the
main board
1. Poor signal wire connection or
damaged signal wire
2. Controller malfunction
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
EE 09
Communication
failure between
Main board and
driver board
1. Poor connection of
communication wire
2. The wire is damaged
1. Check the wire connection
2. Change a new wire
EE 10
VDC voltage too
high protection
1. Mother line voltage is too high
2. Driver board is damaged.
1. Check if the power is in the normal
range
2. Change driver board or main board
EE 11
IPM module
protection
1. Data mistake
2. Wrong compressor phase
connection
3. Compressor liquid and oil
accumulation lead to the current
becomes larger
4. Compressor or driver board
damaged
1. Program error, turn off electricity
supply and restart after 3 minutes
2. Change driver board
3. Check compressor sequence
connection
EE 12
VDC voltage too low
protection
1. Mother line voltage is too low
2. Driver board is damaged.
1. Check if the power is in the normal
range
2. Change driver board
EE 13
Input current over
high protection.
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. 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
EE 14
IPM module
thermal circuit is
abnormal
1. Output abnormity of IPM module
thermal circuit
2. Fan motor is abnormal or
damaged
3. Fan blade is broken
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