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13.
TROUBLESHOOTING
WARNING
•
Have all repairs to the electrical system performed
by a qualified service technician.
If your appliance is not functioning correctly, use the troubleshooting guide below to see whether you can resolve
the problem yourself. If not, please contact your dealer.
Error message
Possible cause
Display
C2 (coffee)
Coffee maker doesn't work.
Dry-boil protection switched off.
C3 (coffee)
Coffee maker doesn't fill any more.
I
C3 (coffee)
Coffee maker fills too slowly.
II
C4 (coffee)
Water inlet valve doesn't close properly.
C7 (coffee)
Minimum electrode fault.
C8 (coffee)
Error C3 changes to C8 after 10 minutes.
The inlet valve is closed for safety.
Please note: this also happens when the
max level is reached!
C9 (coffee)
Problems with registering the volume of
water.
ComBi line
Action
Reset dry-boil protection coffee making unit
(fig. 1-6). Check to see if the coffee maker
needs to be descaled, and descale if necessary.
Check the water pressure, turn the water supply
taps completely open, check if the connecting
hose is fastened. Problem solved, error
message disappears.
Check the water pressure, turn the water supply
taps completely open, check if the connecting
hose is fastened.
Call the service engineer or dealer.
Call the service engineer or dealer.
Restore water supply and restart the coffee
making process.
Call the service engineer or dealer.
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