11.
solution of problems
error
OFF 5
OFF 6B
OFF 10
OFF 14
OFF 17
OFF 24A
OFF 24B
OFF 33A
OFF 33B
OFF 33C
some malfunctions produce an error message shown by the display
of terminal MT1 or MT2-A or signalled by some leds that will
specifically turn on (see page 30);
some general information is
supplied here below for these messages;
see also: Technical Information no. 138
error messages;
actions/comments
EAROM of the CPU board failed; replace the CPU board (see
05.25.a.);
there is a control connecting water reloads with the drinks you
have dispensed; if some water reloads occur without dispensing
any drink, this will produce the 6B error; make sure there is no
leakage in the water circuit;
the values written in the EAROM are not compatible with the
operation of the machine or deleted; reload them; replace the CPU
board CPU; (see 05.25.a.);
there is a control causing the machine to reload water after a well-
defined number of dispensing cycles; otherwise, error 14 is
produced; make sure that the water supply from the outside is
correct (see 03.03. and 05.11.) and that the water circuit of the
machine is orderly (tubes, gaskets, …);
a key of the selection keyboard is not operating (short-circuited); it
may also occur if an operator should operate it for too long while
programming the machine (keys 4 and 5 to increase and decrease
the quantities); (see 05.02.);
the 24 V dc power supply should exceed the limit value; replace
the CPU board (see 05.25.a.);
after al long inactivity, if this error happens, could be enough to
switch off and switch on the machine; if the power failure persists,
pay attention to the cause: a 24 V actuator could be faulty (mixer
or product motor, water inlet electrovalve, …); check the alternate
power supply at the board input; the voltage regulator might be
faulty; replace the CPU board (see 05.25.a.);
the boiler temperature has exceeded the one you have
programmed (see 09.01.b.); replace the temperature probe; the
device of the CPU board is not working according to control;
replace the CPU board;
temperature safety devices tripped (clicsons, thermofuses, …);
restore or replace them; heating element not supplied or not
operating; check the connections and continuity of the heating
element; if necessary, replace it;
temperature probe interrupted; connector to the board, wiring;
make sure that the cable between the probe and the CPU board is
not interrupted or replace the probe (see 05.25.a);
cause
no data storage
water reloads without
dispensing any drink
loss of programming
data
no water reload
selection keyboard out
of order
24 V dc power supply
excessive
24 V dc power supply
inadequate or lacking
water temperature
high
water temperature low
temperature probe
MAN1890105 rel. 02 dated 08.03.2017
page no. 31 of 38
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