fluidra 74148 Manuel D'instructions page 28

IPM module thermal
circuit is abnormal
IPM module
temperature too high
protection
PFC module
protection
DC fan motor failure
PFC module thermal
circuit is abnormal
Malfunction
PFC module high
temperature protection
Input power failure
Software control
exception
1. Output abnormity of IPM module
thermal circuit
EE14
2. Fan motor is abnormal or damaged
3. Fan blade is broken
1. Output exception of IPM module
thermal circuit
EE15 2. Fan motor is abnormal or damaged
3. Fan blade is broken
4.The screw on driver board is loose
1. Output exception of PFC module
2. Fan motor is abnormal or damaged
EE16 3. Fan blade is broken
4. Input voltage leap, input power is
abnormal
1. DC motor is damaged
2. For the tri-phase check if the neutral is
EE17 connected
3. Main board is damaged
4. The fan blade is stuck
EE18 The driver board is damaged
Error
code
1. PFC module thermal circuit output
abnormal
2. Fan motor is abnormal or damaged
EE19
3. Fan blade is broken
4. The screw in the driver board is not
tight
EE20 The supply voltage fluctuates too much
1. Compressor runs out of step
2. Wrong program
EE21
3. Impurity inside compressor causes the
unstable rotate speed
Reason
24
1. Check if the motor speed is too low or
fan motor is damaged, replace it by a
new one.
2. Replace a new driver board
3. Change the fan blade if it is broken
1. Check the main board or replace the
driver board
2. Check if the motor speed is too low or
fan motor is damaged, replace it by a
new one if any failure.
3. Change the fan blade if it is broken
4. Check the screw on driver board
1.Check the main board or replace the
driver board
2. Check if the motor speed is too low or
fan motor is damaged, replace it by a
new one.
3. Change the fan blade
4. Check the input voltage
1. Detect DC motor for mono phase
machine, replace a new one if any
failure
2. Check the wiring connection for tri-
phase machine
3. Check the board, replace a new driver
board or main board if any failure
4. Check if there is any barrier in front of
fan blade and remove it
1. Check if the motor speed is too low or
fan motor is damaged, replace it by a
new one.
2. Change a new driver board
Solution
1. Check the main board or replace the
driver board
2. Check if the motor speed is too low
or fan motor is damaged, replace it by a
new one if any failure.
3. Change the fan blade if it is broken
4. Check the screw on driver board
Check whether the voltage is stable
1. Check the main board or change a
new one
2. Update the correct program
3. Check the refrigeration system