January 2001
3 - 11
Trouble Shooting, Error Codes and Fault Diagnosis
Service Manual Cafitesse 500
1. Flush the dispenser on the
right side.
3. Replace the plug.
(6-poles connector and
BU23)
2. Clean the mixer.
4. Check or replace motor if
required (see pg. 5.C-8).
1. Check the valves and
gaskets at the valves and the
temperature sensor, check
hoses, replace them if
required (refer to pg. 5.A-16
pp.).
1. Install combi-trough properly
2. Check the sensor board,
replace it if necessary
(see pg. 5C-6)
Check the wires (control
board box and BU23)
1. Carry out daily cleaning of
the combi-trough
1. Mixer motor moves
sluggishly.
3. Plug defective (P06).
2. Mixer dirty.
4. Motor defective
1. Boiler is leaking (in
stand-by mode 3 litres
water have been refilled)
1. Combi-trough not
properly installed
2. Sensor board (2 Hall-
sensors) defective or
circuit interrupted
(wires P18/5-7, P20/3,4
(BU23))
1. CLEAN is displayed 4
hours before FLUSH-time
ERR21
Rright mixer motorcurrent
I
mixer
is higher than 2.3 A
after 200 msec.
The LEDs for "EMPTY"
and "ON/OFF" are
flashing.
The dispenser remains
on
The delivery of all
products for which the
right mixer motor is used
is blocked.
All products for which the
right mixer motor is not
used can be delivered.
Cooling remains on.
During the 'FLUSH'
procedure the defective
mixer remains off.
ERR22
Boiler is are leaking
LEDs for empty
indication ON/OFF are
flashing.
The dispenser remains
off. Cooling stays on.
ERR23
Combi-trough fault
LEDs for empty
indication ON/OFF are
flashing.
The dispenser remains
off. Cooling stays on.
CLEAN
The "ON/OFF" LED is
flashing.
All products can be
delivered
Display
Error
Cause
Remedy