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4.2 I Error code display
Display of
Exchanger protection
in "cooling" mode
High temperature
error on evaporator in
"cooling" mode
Phase order fault (on
three phase models
only)
Cooling circuit low
pressure fault
Cooling circuit high
pressure fault
Compressor discharge
temperature fault
ST1 sensor fault -
water inlet sensor
ST4 sensor fault - fluid
line sensor
ST3 sensor fault -
Defrost sensor
ST2 sensor fault - air
inlet sensor
19
Possible causes
ST4 sensor temperature
too low
ST3 sensor temperature
over 60°C or evaporator
scaled up
Cabling not respected on
the appliance's supply
terminals,
Electricity provider has
changed the order of the
phases
Temporary disconnection
of the power supply to one
or more phases
Pressure fault in the low
pressure circuit (if problem
persists after resetting)
Exchanger clogged with dirt
Insufficient water flow
Air and water emulsion has
passed into the appliance
Flow switch is blocked
Compressor discharge
temperature too high
Sensor is faulty or offline
Sensor is faulty or offline
Sensor is faulty or offline
Sensor is faulty or offline
Solutions
Wait until the exterior
temperature rises
Clean the evaporator, if
problem persists, call a qualified
technician
Invert phases on power
terminals (appliance switched
off )
Contact the electricity provided
to find out if your installation has
been modified.
Call a qualified technician
Clean the water exchanger
Increase flow using the by-
pass, check that the pool filter is
not clogged
Check the pool's hydraulic
circuit
Check the flow switch
Call a qualified technician
Reconnect or change the
sensor
Reconnect or change the
sensor
Reconnect or change the
sensor
Reconnect or change the
sensor
Reset
Automatic
Automatic if ST3 sensor
temperature below 45 °C
By electricity supply
disconnection or by pressing
• «Steady red» LED =
automatic
• «Flashing red» LED =
press
• «Steady red» LED =
automatic
• «Flashing red» LED =
press
• «Steady red» LED =
automatic
• «Flashing red» LED =
press
By electricity supply
disconnection or automatic
if the fault disappears
By electricity supply
disconnection or automatic
if the fault disappears
By electricity supply
disconnection or automatic
if the fault disappears
By electricity supply
disconnection or automatic
if the fault disappears
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