Instructions
for Installer,
Maintenance Engineer
and final User
SINFONIA
Rev. 00
H4345 - 00
02/2013
Page 37 of 41
ERROR
POSSIBILE CAUSE
RECOMMENDED SOLUTIONS
The compressor is
not working, the
condenser fan
turns, the
compressor is cold
Overload protector and relay are
not working
Check overload protector or compressor relay.
The relay board is defective
Check that the compressor winding has the right
electrical resistence
Check that the guide relay has control wiring.
The compressor
works but the
temperature is not
ideal
The condenser fan is not working.
Check the circuit. Replace the motor. Check if the
fan is blocked. Check the relay guide board.
Dirty condenser.
Check if the fans of the condenser are dirty or
blocked.
The evaporator fan is not
working.
Check the circuit. Replace the motor and check
that the fans is not blocked. Check the relay guide
board.
No gas in system.
Check if there are leaks or reload only with the
quantity and type of gas recommended by the
manufacturer.
The temperature setting is not
correct.
Set the desired temperature (ref. Programming
manual).
EMS badly programmed.
Check if the energy saving program is correct and
change if necessary (ref. Programming manual).
The compressor
works
continuously.
Defective relay board.
Check the relay board and wiring.
Wrong temperature setting
Check setting.
Gas leak
Reload the cooling unit after repairing the leak.
Evaporator covered
with ice.
Evaporator fan not working.
Check the evaporator fan (see previous
instructions).
The cooling compartment is badly
sealed.
Change the sealing and adjust the internal door
closure.
Check that the product door is not blocked.
OPERATIONS THAT REQUIRE THE OPENING OF THE LOWER PROTECTION OF THE
MACHINE CAN ONLY BE DONE BY SANDENVENDO EUROPE TECHNICIANS OR AUTHORIZED
PERSONNEL, BECAUSE OF POSSIBLE RISKS DUE TO ELECTRIC SHOCKS AND MOVING
MECHANICAL PARTS.