POOLEX 90 - List of Faults

35
7. Repairs
7.2 List of faults
Code Fault Possible causes Action
03
Flow sensor malfunction
Insufcient water in heat exchanger
Check your water circuit operation and the opening of the By-Pass
valves
Sensor disconnected or defective Reconnect or replace sensor
04
Antifreeze protection
Protection activated when the ambient temperature is too low and
the unit is on standby
No intervention is necessary
05
High pressure protection
Insufcient water ow
Check water pump operation and openings of By-Pass inlet/outlet
valves
Excess refrigerant gas Readjust the refrigerant volume
Defective 4-way valve Replace the 4-way valve
High pressure switch disconnected or defective Reconnect or replace high pressure switch
06
Low pressure protection
Insufcient refrigerant gas Readjust the refrigerant volume
Defective 4-way valve Replace valve
Low pressure switch disconnected or defective Reconnect or replace low pressure switch
09
Connection problem between PCB and wired
remote control
Bad connection Check wiring connections between remote control and PCB
Defective wired remote control Replace remote control
Defective PCB Replace PCB
10
Connection problem between PCB and inverter
module
Bad connection Check wiring connections between PCB and inverter module
Defective inverter module Replace inverter module
Defective PCB Replace PCB
12
Vented air temperature too high Insufcient refrigerant gas Readjust the refrigerant volume
15
Water intake temperature sensor malfunction Sensor disconnected or defective Reconnect or replace sensor
16
Outside coil temperature error Sensor disconnected or defective Reconnect or replace sensor
18
Vented temperature error Sensor disconnected or defective Reconnect or replace sensor
20
Inverter module protection
Defective inverter module
Power off the heat pump and restart
Replace inverter module
Compressor is defective Replace the compressor
21
Ambient temperature error Sensor disconnected or defective Reconnect or replace sensor
23
Water temperature at outlet too low for cooling
mode
Insufcient water ow
Check water pump operation and openings of By-Pass inlet/outlet
valves
27
Water outlet error Sensor disconnected or defective Reconnect or replace sensor
29
Backed temperature error Sensor disconnected or defective Reconnect or replace sensor
32
Outlet temperature too high for heating mode
protection
Insufcient water ow
Check water pump operation and openings of By-Pass inlet/outlet
valves
35
Compressor current protection
The speed of compressor is too high Compressor will be lower the speed auto
Water temperature is too high
Check water pump operation and openings of By-Pass inlet/outlet
valves
Ambient temperature is too high, air volume is too little Check the fan is working properly and the air inlet is unobstructed
42
Inside coil temperature error Sensor disconnected or defective Reconnect or replace sensor