30| SAHP - BMTB Installation Manual
V1 Mar 2019US - SD667052
SECTION 10
TROUBLESHOOTING
GUIDE
!
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 gas load.
Air in the hydraulic
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 cleanness of the
hydraulic circuit.
Check the pressure switches
function properly.
Lime deposits inside the
hydraulic circuit: Clean the
filter in the hydraulic 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 load
(check the sight glass for
the refrigerant)
Empty the refrigeration
circuit and refill with fresh
refrigerant.
Check the continuity of the
probe using a multimeter.
Check the temperature
probe connection.
