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Water flow detection
The heat pump only operates whenever there is water flow circulating inside. All models are equipped with a water flow
switch that detects if the water pump is working or not.
Internal parameters
Button
serves to check the internal parameters. These parameters may only be modified by professionals.
When the machine is displaying internal parameters, the icon
Controller state table
Screen
St-by
FLO
AL10 / AL11
AL15 / AL16
AL18
AL17
AL7 / AL8
AL3
AL4
AL5
AL1
AL2
AL6
AL9
AL14
AL19 / AL20
AL21 / AL22 / AL23 /
AL24 / AL25
"flow" LED lighting = water pump working.
"flow" LED not lighting = water pump stopped.
Explanation
Stand-by
No water flow or the flow switch
doesn't detect the water flow
HP error
Too much temperature difference
between water in and water out.
Comp. Out temp. Too high
Low temp protection in cooling
mode
Communication error
Probe error (Water in)
Probe error (Water out)
Probe error (coil.)
Probe error (comp. out)
Probe error (comp. in)
Probe error (ambiance)
Fan error
Outdoor temperature too low
Power supply problem
Electronic/overheating protection
will be shown.
Check
-
- Check if filtration pump is
working.
- Check by-pass setting.
- Check water flow switch position.
Check
electrical
connection
between controller and electronic
card inside the machine.
Check probe connection.
Check fan connection.
Outdoor temp is below -15°C
Ask an electrician specialist to
check power supply.
Stop the power supply for 5 to 10
minutes, check that air flow is not
blocked, turn ON power supply
- 29 -
Solution (if no reset)
-
Contact your seller
Wait
for
the
outdoor
temperature to increase.
Contact your seller
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