La Cimbali M2 Manual page 17

English
MALFUN.
DESCRIPTION
CODE
Boiler temperature
051
malfunctioning
052
Boiler heating timeout
Steam thermocouple
053
Value is outside of acceptable
range
054 KTY plugs
Value is outside of acceptable
range
KTY plugs
055
Timeout plug resistance activation
066
Failure to read impulses by
volumetric meter of turbine
during coffee dispensing
067
Failure to read impulses by
volumetric meter of turbine
during circuit wash cycle
091
Timeout – scheduled daily unit
wash cycle
092
Timeout – scheduled daily milk
circuit wash cycle
15. Defects - Malfunctions
POSSIBLE CAUSES
• D i s c o n n e c t e d
thermocouple
• Malfunctioning card
• The safety thermocouple
has been triggered
• The resistance is
interrupted (cabling
defect)
• The Triac card is
malfunctioning
• No water
• Broken pump
• Too much coffee
• Coffee ground too fine
• Clogged filters
• Coffee solenoid valve
clogged or defective
• Broken turbine
• No water
• Broken pump
• Clogged filters
• Coffee solenoid valve
clogged or defective
• Broken turbine
A unit wash cycle was not
performed within 60 minutes
of the message.
A milk circuit wash cycle was
not performed within 60
minutes of the message.
SOLUTIONS
Open the machine
- Check cabling
- Replace the thermocouple
- Replace the card
Open the machine
- Check if the safety thermostat has been triggered, and
reset it if necessary
- Check if there are interruptions or detached fastons on the
cabling
- Check that the boiler resistance is not interrupted and
replace it if necessary
- Replace the Triac card
1 Open the machine
2 Activate the test panel
3 Use test panel to check if the counter function works
during coffee dispensing
- If the counter works only with a few impulses:
- Check the granulometry and quality of the ground coffee
- Clean the filters
- Check if the coffee solenoid valve and coffee hydraulic
circuit are clogged
- If the counter does NOT function:
- Check if there is water and if the pump works
- Replace the turbine
- Check the cabling
1 Open the machine
2 Activate the test panel
3 Use test panel to check if the counter function works
during the wash cycle
- If the counter works only with a few impulses
- Clean the filters
- Check if the coffee solenoid valve and coffee hydraulic
circuit are clogged
- If the counter does NOT function:
- Check if there is water and if the pump works
- Replace the turbine
- Check the cabling
English