Dr.coffee F20 - Page 5

Rev 00
Dr.coffee Product Maintenance Manual 5
4.1.12 Medium powder box is not installed in place ............................................................................................................................................ 55
4.1.13 The right powder box is not installed in place ...................................................................................................................................... 55
4.1.14 The bubbler is not installed in place ........................................................................................................................................................ 56
4.1.15 The door is not closed in place ................................................................................................................................................................... 56
4.1.16 The door of the powder feeder is not closed in place .......................................................................................................................... 56
4.1.17 Excessive temperature of powder boiler ...................................................................................................................................................... 57
4.1.18 Steam boiler temperature is too high .......................................................................................................................................................... 57
4.1.19 The coffee hot plate temperature is too high .......................................................................................................................................... 57
4.1.20 The temperature of powder boiler is too low ............................................................................................................................................ 58
4.1.21 Steam boiler temperature is too low ............................................................................................................................................................ 58
4.1.22 The coffee hot plate temperature is too low ............................................................................................................................................ 58
4.1.23 Too high ambient temperature ......................................................................................................................................................................... 59
4.1.24 Low ambient temperature ................................................................................................................................................................................... 59
4.1.25 Insufficient milk ............................................................................................................................................................................................... 59
4.1.26 System water shortage ....................................................................................................................................................................................... 60
4.1.27 Excessive system pressure ............................................................................................................................................................................... 60
4.1.28 Grinder calibration ........................................................................................................................................................................................... 60
4.1.29 Self-inspection of the bubbler ..................................................................................................................................................................... 61
4.1.30 The washing and boiling system needs to be cleaned .............................................................................................................................. 61
4.1.31 The milk system needs to be cleaned ............................................................................................................................................................ 61
4.1.32 The powder system needs to be cleaned ........................................................................................................................................................ 62
4.1.33 The coffee machine needs descaling.............................................................................................................................................................. 62
4.1.34 Network exception ............................................................................................................................................................................................... 62
5 FAULT ....................................................................................................................................................................................... 64
5.1 FAULTS WITH SCREEN PROMPT .............................................................................................................................................................................................. 64
5.1.1 Abnormal water supply of powder boiler ........................................................................................................................................................ 64
5.1.2 Abnormal water supply of coffee hot plate .................................................................................................................................................. 64
5.1.3 Left bean grinder is abnormal.......................................................................................................................................................................... 64
5.1.4 Abnormality of right bean grinder .................................................................................................................................................................. 65
5.1.5 Abnormal washing and boiling system .............................................................................................................................................................. 65
5.1.6 HMI communication abnormality.......................................................................................................................................................................... 65
5.1.7 Abnormal NTC of powder boiler.......................................................................................................................................................................... 66
5.1.8 Steam boiler NTC abnormality ........................................................................................................................................................................... 66
5.1.9 Coffee hot plate NTC abnormality .................................................................................................................................................................... 66
5.1.10 Heating timeout of powder boiler ................................................................................................................................................................. 67
5.1.11 Steam boiler heating timeout ......................................................................................................................................................................... 67
5.1.12 Coffee hot plate heating timeout ................................................................................................................................................................. 67
5.1.13 Steam boiler water make-up timeout.............................................................................................................................................................. 68
5.2 FAULTS WITHOUT SCREEN PROMPT .......................................................................................................................................................................................... 69
5.2.1 Unable to start the machine ............................................................................................................................................................................. 69
5.2.2 Can't suck milk ..................................................................................................................................................................................................... 69
5.2.3 Milk can be produced without milk foam ........................................................................................................................................................ 69
5.2.4 No coffee................................................................................................................................................................................................................. 69