January 2001
3 - 4
Trouble Shooting, Error Codes and Fault Diagnosis
Service Manual Cafitesse 500
Bad
Product dosing error
Dosing
(B2-error)
only dis-
dispenser still operative
played on
Service
Note:
Device
The occurrences of 'Bad
Dosing' are counted, the
number is stored (max.
255) in memory.
With the service device
this number can be reset
to 0. Press CLR button.
ERR2
The heating is on longer
than approx. 1 hour.
The dispenser is switched
off. The cooling system
remains on. The LEDs
for "EMPTY" and "ON/
OFF" are flashing.
ERR3
Temperature sensor
boiler detects
T is higher than the
programmed temperature
T
Set
+9 °F
The dispenser is
switched off. The cooling
system remains on. The
LEDs for "EMPTY" and
"ON/OFF" are flashing.
Display
Malfunction
Cause
Remedy
1. Check the wires P14
(BU21), (control board box)
Replace the control board
box if necessary
(see pg. 5K-4)
2. Replace it or correct its
position
1. Check volume
2. Check the wires (see pg.
5.K-18/19) (from heating
capacity change-over switch
to heating). Replace the
control board box if necessary
3. Replace the relay (cable
harness to control board
box and BU23 (check
contactor))
4. Replace boiler cover
(see pg. 5.A-7)
1. Let the boiler cool down
2. Replace relay on the power
supply unit (see pg. 5K-6)
3. Decalcify or replace the
temperature sensor
(see pg. 5.A-15)
4. Check the wires P02 (BU24).
Replace the control board box
if necessary (see pg. 5K-4)
5. Replace the control board
box (see pg. 5.K-4)
1. Wires P14 defective.
2. Flexi pack defective or
improperly placed
1. Volume exceeds capacity
2. Wires incorrect (P01,
P03), Temperature limiter
3. Safety relay defective
4. Heating element defective
1. Programmed value was
reduced with a heated
boiler
2. Relay defective.
3. Temperature sensor
extremely calcified or
defective
4. Wires P02 to the
temperature sensor is
short circuited
5. Malfunction in control
board
Note:
Refer to diagram on 5.K-16/17 for the correct numbers and location of harnesses.
