Service Manual FB 7100 Event recording and troubleshooting
January, 2005 3 - 9
VMC short circuit
(log book only)
This message indicates a short circuit causing the machine to stop
operating. The message “Out of service” appears in the credit display.
Water level low This message appears if the boiler has not filled within three minutes after
the machine has been switched on.
Switch the machine off, open the water tap, check water connection and
hoses. If the error remains, investigate the possibilities in the table below.
Water pump error
(log book only)
This message indicates an error in the water pump causing the machine to
stop operating. The message “Out of service” appears in the credit display.
Water pump
overload
(log book only)
This message indicates an overload of the water pump causing the machine
to stop operating. The message “Out of service” appears in credit display.
Possible cause Remedy
Short circuit in Harness. Check harness, replace if necessary.
Defective motor for instant ingredients,
whipper or pump
Check motors, replace if necessary.
See
• chap. 5C, page 5C-8, (instant ingre-
dient motor)
• chap. 5C, page 5C-6, (whipper
motor)
or
• chap. 5A, page 5A-6, (pump)
Defective VMC Check, replace if necessary.
See chap. 5K, page 5K-12
Possible cause Remedy
Inlet valve defective or blocked by
limescale build-up
Check, descale or replace if necessary.
See chap. 5A, page 5A-12
Blocked water filter Remove impurities and clean, replace
filter if necessary.
Water supply connection blocked Remove impurities.
Possible cause Remedy
Defective pump Check motor, replace if necessary.
See.chap. 5A, page 5A-6
Defective VMC Check VMC, replace if necessary.
See chap. 5K, page 5K-12
Defective harness Check harness, replace if necessary.
Possible cause Remedy
Limescale build-up blocking pump Descale pump.
See chap. 5A, page 5A-6
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