Display
Designation
Water flow‐rate
sensor defect
Defrost sensor
defect (ST3)
sensor defect
Compressor
discharge sensor
defect (ST5)
Communications'
defect between
the main card A1
and the display
5.2 Malfunctions of the device
Dysfunction
The device is not
operational
The device is
operational, but water
temperature fails to
rise
The fan is turning, but
the compressor stops
from time to time
without an error
message appearing
H03620‐00.B5.EN – 2011/11
Sensor out‐of‐order or
disconnected
(connector J8 white on
(ST4)
Sensor out‐of‐order or
disconnected (terminals
1‐2 of connector J3
white on plate A2)
Sensor out‐of‐order or
Anti‐freeze
disconnected (terminals
3‐4 of connector J3
(ST2)
white on plate A2)
Sensor out‐of‐order or
disconnected
(connector J7 black on
1. Incorrect connection
between plates A1 and
2. Card supply defect
card A2
3. Cards out of order
Causes
No display
The pool temperature is above the
set‐point temperature
A message is displayed on the screen
Absent or inadequate water flow‐rate Check the water flow‐rate (by‐pass, filtration)
Inadequate filtering time
Non‐compliant period of use
The heat pump is under‐dimensioned
The automatic pool water filler is
blocked in the open position
The heat insulating cover is not used
The evaporator is clogged
The device is incorrectly installed
A message is displayed on the screen
The heat pump does defrost cycles
from time to time
The evaporator is clogged
Cause
Replace or reconnect
plate A1)
Replace or reconnect
Replace or reconnect
Replace or reconnect
plate A1)
connections (connectors
J8 and J9 yellow, and J7
A2
and J4‐J5 black)
1, 2 and 3. if the defect
persists, contact an
approved technician
Check the supply voltage and the fuse F1
Increase the set‐point temperature
Check the meaning of message §5.1
Set the filtering system to manual 24‐ hour
operation for temperature control
Check that outdoor temperature is within the
operating range (see §1.3)
Check the characteristics of the heat pump
according to the pool
Check the correct operation of the automatic
filler
Fit the heat insulating cover
Clean the evaporator (see §4.1)
The device must be installed outdoors.
Check that there is no obstacle less than 4
metres from where the blower is facing, and
0.50 metres behind the heat pump.
Check the meaning of message §5.1
This is normal if the outdoor temperature is
below 10 °C
Clean the evaporator (see §4.1)
Solution
Switch the power
automatic reset if
the sensor
Switch the power
the sensor
Switch the power
the sensor
Switch the power
automatic reset if
the sensor
1 and 2. Check
Switch the power
automatic reset if
Verification / solution
Reset
supply off or
the defect
disappears
supply off or
press
supply off or
press
supply off or
the defect
disappears.
supply off or
the defect
disappears
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