Zodiac Z950 - 5.3 Advanced setting parameters (accessible by a qualified technician)

23
5.2 I Error code display
Display Fault Possible causes Soluons
A11
Low-pressure fault
- circuit 1
A13
Low-pressure fault
- circuit 2
No signal from the low-pressure
switch
Defecve pressure switch, replace if
necessary
Leak in the cooling circuit Call a qualied technician.
Blocked evaporator, air ow too
low
Remove any dirt or obstacles from the
evaporator blocking the air ow
Frost on the evaporator
Check that the 4-way valve is
operang correctly
Fan operaon problem
Check that the fan is operang
correctly, replace it if necessary
Regulator valve closed
Defecve regulator (or its
controller), replace if necessary.
A12
High-pressure fault
- circuit 1
A14
High-pressure fault
- circuit 1
No signal from the high pressure
switch
Defecve pressure switch, replace if
necessary
Insucient water ow
Increase ow using the by-pass,
check that the pool lter is not clogged
Cooling circuit fault
Check the cooling circuit
A15
Water ow
controller
Water ow problem
• Check that the ow rate is sucient
• Check that the pump is working
• Check the ow switch
A21
Water inlet
temperature
sensor fault
Sensor is faulty or oine
Reconnect or change the sensor
A22
Evaporaon
sensor 1 fault
Sensor is faulty or oine
Reconnect or change the sensor
A23
Evaporaon
sensor 2 fault
Sensor is faulty or oine
Reconnect or change the sensor
A24
Compressor 1
discharge sensor
fault
Sensor is faulty or oine
Reconnect or change the sensor
Discharge temperature too high
A25
Compressor 2
discharge sensor
fault
Sensor is faulty or oine
Reconnect or change the sensor
Discharge temperature too high
A26
A26
Circuit 1 sucon
sensor fault
Sensor is faulty or oine
Reconnect or change the sensor
A27
A27
Circuit 2 sucon
sensor fault
Sensor is faulty or oine
Reconnect or change the sensor
A28
Outside air
temperature
sensor fault
Sensor is faulty or oine
Reconnect or change the sensor
A29
Water outlet
temperature
sensor fault
Sensor is faulty or oine
Reconnect or change the sensor
EN