ALARM
CAUSE
SOLUTION
When the espresso boiler
temperature probe of an
espresso unit is disconnected
(circuit open), alarm AL1
appears on the corresponding
unit.
- Check the connection wiring
between the espresso boiler
temperature probe and the
machine board
- Potential espresso boiler
temperature probe fault:
check and replace
- Potential machine board
fault: check and replace.
When the steam boiler
temperature probe reaches a
value higher than 140°C, alarm
AL4 appears on every unit.
- Check the connection wiring
between the steam boiler
temperature probe and the
machine board
- Potential steam boiler
temperature probe fault
(short-circuit): check and
replace
- Potential machine board
fault: check and replace.
When the espresso boiler
temperature probe of an
espresso unit reaches a value
higher than 140°C, alarm AL2
appears on the corresponding
unit.
- Check the connection wiring
between the espresso boiler
temperature probe and the
machine board
- Potential espresso boiler
temperature probe fault:
check and replace
- Potential fault of TRIAC on
expansion board: check and
replace the expansion board
- Potential machine board
fault: check and replace.
ENG
LA REALE
GENERAL INFORMATION
69
Summary of Contents for La Reale
Page 1: ...INSTALLATION AND USE ...
Page 6: ...ENG IV CONTENTS ...
Page 14: ...ENG 8 GENERAL INFORMATION ...
Page 22: ...ENG 16 GENERAL INFORMATION ...
Page 29: ...14 3 5 2 10 15 4 6 10 13 11 13 1 8 12 9 7 12 4 A 4 B ENG LA REALE GENERAL INFORMATION 23 ...
Page 80: ...ENG 74 GENERAL INFORMATION ...
Page 82: ...ENG 76 GENERAL INFORMATION ...
Page 83: ...LA REALE ELECTRIC AND HYDRAULIC DIAGRAMS 8 ...
Page 86: ...ENG 7 PURPLE 7 PURPLE 6 6 6 0 0 0 0 0 0 0 0 0 80 DIAGRAMS ...