C:\Documents and Settings\mconti.TECHNOGEL-USA\My Documents\MACCHINE\ARTESAN\ART
MANUALS\Mantegel\Inglese\MG 2V Istruzioni Inglese 01-08.doc
51
Troubleshooting
The user can carry out operations on the machine without any risk of
danger only when the user symbol is indicated
In all other cases operations must be carried out exclusively by Authorized Technicians.
MALFUNCTION
CAUSE
REMEDY
Refrigerator compressor
stops.
The thermal overload switch
has tripped.
Maximum pressure switch
has tripped.
Reset by pressing the pushbutton
(pos.
TC
page 29)
Check that there is sufficient
cooling water.
Maximum pressure switch
not calibrated or defective.
Check and adjust.
"Ice-cream ready" buzzer
rings repeatedly on start-up.
Electronic gear-case has been
calibrated too low.
Increase the value stored in gear-
case. (page 14)
Faulty amperometric gear-
case
Check and/or replace.
Freezing time too long.
Scraping blades are worn and
so ice-cream crust forms
limiting thermal transfer.
Replace all scraping blades and
centring blocks (if blocks are not
replaced, the new blades will not
function properly)
Insufficient refrigerating gas.
Thermostat valve is too
tightly closed so evaporation
temperature very low, even
at start of cycle.
Check and fill up if necessary. See
type of Gas and quantity on page
5 or on the machine plate behind
the machine.
Open the thermostat valve or
replace it if blocked.
Dasher motor stops during
ice-cream removal.
The dasher motor stops during
the ice-cream evacuation
stage
Ice-cream is too thick,
triggering overload cutout
switch.
The machine has passed
from the freezing stage to
evacuation passing via STOP
and it waits a few seconds
on STOP.
Reset using the triggering reset
button on the back (page 29
pos.
TM1
) and check the set value
on the amperometric gear-case:
probably too high.
Pass immediately from freezing to
evacuation without pressing STOP.
Reset with the reset button (page
29, pos.
TM2
).
