La Cimbali M2 - Page 17

EnglishEnglish
MALFUN.
CODE
051
052
053
054
055
066
067
091
092
SOLUTIONS
15. Defects - Malfunctions
POSSIBLE CAUSESDESCRIPTION
Boiler temperature
malfunctioning
Boiler heating timeout
Steam thermocouple
Value is outside of acceptable
range
 Disconnected
thermocouple
 Malfunctioning card
Open the machine
- Check cabling
- Replace the thermocouple
- Replace the card
 The safety thermocouple
has been triggered
 The resistance is
interrupted (cabling
defect)
 The Triac card is
malfunctioning
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
KTY plugs
Value is outside of acceptable
range
KTY plugs
Timeout plug resistance activation
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
Failure to read impulses by
volumetric meter of turbine
during coffee dispensing
 No water
 Broken pump
 Too much coffee
 Coffee ground too fine
 Clogged filters
 Coffee solenoid valve
clogged or defective
 Broken turbine
Failure to read impulses by
volumetric meter of turbine
during circuit wash cycle
 No water
 Broken pump
 Clogged filters
 Coffee solenoid valve
clogged or defective
 Broken turbine
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
Timeout  scheduled daily unit
wash cycle
A unit wash cycle was not
performed within 60 minutes
of the message.
Timeout  scheduled daily milk
circuit wash cycle
A milk circuit wash cycle was
not performed within 60
minutes of the message.