DeDietrich Innovens MCA 35 Installation And Service Manual page 6

8 Troubleshooting .....................................................................................104
9 Spare parts ..............................................................................................121
15/06/12 - 300022160-001-01
7.5 Specific maintenance operations ....................100
7.5.1 Replacing the ionization/ignition electrode ..........100
7.5.2 Replacing the 3-way valve ..................................101
7.5.3 Replacing the non-return valve ...........................102
7.5.4 Assembling the boiler ..........................................103
8.1 Anti-hunting ......................................................104
8.2 Messages (Code type Bxx or Mxx) ..................104
8.3 Message history ................................................107
8.4 Faults (Code type Lxx or Dxx) .........................107
8.4.1 Deletion of sensors from the memory in the
PCB .....................................................................116
8.5 Failure history ...................................................116
8.6 Parameter and input/output check (mode
tests) ..................................................................117
8.6.1 Control system sequence ....................................120
9.1 General ..............................................................121
9.2 Spare parts ........................................................121
9.2.1 Casing .................................................................122
9.2.2 Heat exchanger and burner ................................123
9.2.3 Fan ......................................................................124
9.2.4 Control panel .......................................................125
9.2.5 Connecting pipes ................................................126
9.2.6 Spare parts list ....................................................127
Contents
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