23
EE16
PFC module protecon
The data is incorrect.
Check the printed circuit board.
The fan motor is faulty. Check the fan speed.
The propellers are broken. Check the propellers.
The voltage is unstable.
Check the voltage.
EE17
DC fan error
The fan motor is faulty.
Check the fan motor.
The printed circuit board is faulty.
Replace the printed circuit board.
The propellers are faulty. Check the propellers.
EE18
Abnormal PFC module operang
temperature
The printed circuit board is faulty.
Replace the printed circuit board.
Check the fan speed.
Check the propellers.
EE19
PFC module high temperature protecon
The power supply is incorrect.
Check the printed circuit board
The fan motor is faulty. Check the fan speed.
The propellers are broken. Check the propellers.
The connecons to the power board
are loose.
Check the connecons, ghten
the screws.
EE20
Power supply error
The power supply varies too much.
Check the power supply voltage.
EE21
Programme error.
The compressor is losing power,
operang at an irregular speed.
Check the printed circuit board
Reload the programme
Programme error.
Impurity in the compressor.
EE22
High voltage protecon
The power supply is incorrect.
Replace the printed circuit board.
The power board is faulty.
Replace the printed circuit board.
EE23
Compressor start-up error
The power board is faulty. Check the printed circuit board.
Accumulaon of liquid and gas.
Check the power supply voltages
The voltage is unstable.
Check the voltage.
EE24
Ambient temperature or printed circuit
board
Ambient temperature or input water
temperature too low.
Check and replace the printed
circuit board.
EE25
Compressor power error
The compressor operates with 1 or 2
phases.
Check the wiring.
EE26
4-way valve inversion error
Blockage-inversion of the 4-way valve.
Switch to heang/cooling mode to
check inversion of the valve.
Replace the 4-way valve.
Low refrigerant (no d5-TH2 or d3-TH1
detecon).
Check refrigerant levels.
EE27
EEPROM memory data error
Data loss in the memory.
Reload the data to the memory.
Printed circuit board error.
Replace the printed circuit board.
EE28
Communicaon error with the controller
Printed circuit board error.
O/on to restart.
Check and replace the printed
circuit board.
4.3 I Wiring diagrams
• Wiring diagrams are available at the end of the document, see “Schémas électriques / Wiring diagrams
/ Schaltplan / Elektrischschema / Esquema eléctrico / Esquema eléctrico / Schema elerico”, page 28