Swimming Pool Heat Pump Inverboost C /
27
Malfunction
Error code
Reason
Solution
PFC module
protection
EE16
1. Output exception of PFC
module
2. Fan motor is abnormal or
damaged
3. Fan blade is broken
4. Input voltage leap, input
power is abnormal
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
DC fan motor failure
EE17
1. DC motor is damaged
2. For the tri-phase check if
the neutral is connected
3. Main board is damaged
4. The fan blade is stuck
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
PFC module thermal
circuit is abnormal
EE18
The driver board is damaged
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
PFC module high
temperature
protection
EE19
1. PFC module thermal circuit
output abnormal
2. Fan motor is abnormal or
damaged
3. Fan blade is broken
4. The screw in the driver
board is not tight
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
Input power failure
EE20
The supply voltage fluctuates
too much
Check whether the voltage is
stable
Software control
exception
EE21
1. Compressor runs out of
step
2. Wrong program
3. Impurity inside compressor
causes the unstable rotate
speed
1. Check the main board or
change a new one
2. Update the correct program
3. Check the refrigeration system
