Data di emissione: Dicembre, 2018 Revisione: 2 Pag. : 41/68
14. TROUBLESHOOTING GUIDE
NOTE: the following procedures must be performed by a qualified service technician.
Problem Possible cause Solution
The machine does not cool,
or cools only partially and
the compressor is running
• The space around the machine is
inadequate for ventilation
• The refrigeration system is working in
DEFROST mode
• The condenser fins are clogged with
airborne particles
• Fan motor is not running
• Refrigerant is leaking
• Allow at least 20cm between the
machine and anything next to it;
keep it away from heat sources
• Return to FREEZE mode
• Clean the condenser fins
• Check the fan motor’s electrical
connections and, if disconnected,
reconnect. If still not operating,
replace the motor
• Locate the leak, eliminate it and
recharge the system
The machine does not cool,
or cools only partially and
the compressor is not
running
• Electrical components of the compressor
are not functioning
• Some electrical connections are not
complete
The compressor is malfunctioning
• Replace the malfunctioning
components
• Check the contacts and and
correct those incomplete
Replace the compressor
The machine is noisy • The fan motor blades are hitting internal
components
• Check and correct
The main power switch is
“ON” but the unit s not
running
• The main cover is not correctly
assembled
• Some electrical connections are not
complete
• The main power switch is broken
• The control board is faulty
• The compressor DC drive is faulty
The gear motor is malfunctioning
• Assemble the main cover
correctly
• Check the contacts and and
correct those incomplete
• Replace the switch
• Replace the control board
• Replace the DC drive
Replace the gear motor
The bowl is leaking
One of the bowl seal is not in place
Replace or reposition the seal
The dispensing valve is
leaking
• The dispensing valve has been
incompletely or incorrectly replaced in its
position
• The free movement of the valve is
impeded
Dispensing valve o-rings are damaged
• Reassemble and replace
• Clean and lubricate the valve
and the valve cylinder with the
lubricant provided with the
machine
Replace the o-rings
Product is flowing into drain
tray through drainage pipe
• The bell shaped seal between the front of
the cylinder and the auger hub has not
been reinstalled properly
• The bell shaped shaft seal or the spindle
bushing seal is damaged or worn
• Find the seal and put it back in
place
• Replace the damaged/worn seal
and check the condition of the
drive shaft
The auger is not turning • The main cover is not correctly
assembled
• Some electrical connections are not
complete
• The control board is faulty
• The compressor DC drive is faulty
The gear motor is malfunctioning
• Assemble the main cover
correctly
• Check the contacts and correct
those incomplete
• Replace the control board
• Replace the DC drive
Replace the gear motor
The auger is creating noise
as it rotates
• The bell shaped shaft seal has been
replaced without lubrication or is
damaged
• The auger has been incompletely or
incorrectly reassembled
• Replace or clean and lubricate
with the lubricant provided with
the machine
• Check and correct
The first and last LED of the
consistency scale are
blinking at the same time
and the machine does not
cool
• The product level inside the bowl is too
low
• Refill the bowl with product until
the level probe is covered
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