Service manual

SECTION 4 - TROUBLESHOOTING
CAFFÈ MIO – OPERATION AND SERVICE Page 33 of 110
Indicator Messages
MESSAGE POSSIBLE CAUSE CORRECTIVE ACTION
EMPTY WATER TANK
PRESS PRODUCT
The “EMP TY W ATER TANK” function
has been accessed.

To empty the water tank, press and
hold the “COFFEE” and “HOT
W ATE R
” buttons simultaneously.
ERROR – CALL FOR
SERVICE
An error is present with the
machine.
 If this message appears, the
caretaker needs to call a technician
for service.
ERROR - CHECK
STUCK BUTTON
A button on the front board is
stuck pressed down.
 Fascia may be binding against the
side of a button. Re-align fascia or
trim fascia around the button(s).
 A front board button may have
collapsed. Replace front board.
 Machine may not be getting any
water - check and fix the water
supply. Switch machine
OFF for ten
seconds and ON AG AI N .
ERROR DETECTED
RELOAD SOFTWARE
The software in the rear board has
been corrupted.
 Using the Data Link Downloader,
re-install the software into the rear
board.
EXACT CHANGE
Equipment requires exact change
to operate.

Insert exact change or add some coins to
the coin changer tubes.
POUR PACKET
CONTENTS
The packet system has been
activated.
 Pour packet contents into the packet
system and activate brew cycle.
PLEASE CHECK
BREW ER
A problem exists with the brewer
motor that prevents it from finding
the home position.
 Check the brewer motor home
switch.
 Check the wiring to the brewer
motor.
 Brewer motor may be seized. Replace
the motor.
 Brewer may be jammed. Repair or
replace the brewer motor.
PLEASE CHECK
BREWER HARNESS
The wiring harness is not
connected to the rear board.
 Connect the wiring harness to the
corresponding connector on the
rear board.
PLEASE CHECK
OVERFLOW HARNESS
The wiring harness is not
connected to the rear board.
 Connect the wiring harness to the
corresponding connector on the
rear board.
PLEASE CHECK
TANK HARNESS
The wiring harness is not
connected to the rear board.
 Connect the wiring harness to the
corresponding connector on the
rear board.