30| SAHP - Installation Manual
V3 June 2021US - SD667052
SECTION 10
TROUBLESHOOT-
ING
PROBLEMS
The screen doesn’t show
any information.
The system starts and
stops, the screen
switches off.
A Dot appears on the
screen (when off).
E1 error appears on
screen.
CAUSES
Lack of power.
Incorrect refrigerant
charge.
Air in the plumbing
circuit.
High Pressure switch is
on.
Non condensable gases in
the refrigeration circuit.
Temperature probe.
SOLUTION
Check the power supply.
Check that the power
switch is on.
Please check the gas
through the sight glass.
Verify the cleanliness of
the plumbing circuit.
Check the pressure
switches function
properly.
Lime deposits inside the
plumbing circuit: Clean
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plumbing circuit and
clean the whole system.
Check the functioning
of the water pump and
bleed the pump. Bleed
the air through into air
vent.
Check the R134a / 513a
load (check the sight
glass for the refrigerant)
Empty the refrigeration
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clean refrigerant.
Check the continuity of
the probe using a
multimeter.
Check the temperature
probe connection.
