6 Switching off the appliance ...................................................................103
6.1 Installation shutdown .......................................103
6.2 Turning on the antifreeze function ..................103
7 Checking and maintenance ...................................................................104
7.1 General instructions .........................................104
7.2 Maintenance operations to be performed ......104
7.3 Cleaning the 400 µm filter ................................104
7.4 Customising maintenance ...............................105
7.4.1 Maintenance message ........................................105
7.4.2 Contact details of the professional for After Sales
Support ................................................................106
8 Troubleshooting .....................................................................................108
8.1 Anti-hunting ......................................................108
8.2 Messages ...........................................................108
8.3 Message history ................................................110
8.4 Faults (Code type Lxx or Dxx) .........................111
8.4.1 Deletion of sensors from the memory in the
PCB .....................................................................114
8.5 Failure history ...................................................115
8.6 Parameter and input/output check (mode
tests) ..................................................................115
9 Spare parts ..............................................................................................121
9.1 General ..............................................................121
9.2 Spare parts ........................................................121
9.2.1 AWHP 6 MR ........................................................121
9.2.2 AWHP 8 MR ........................................................123
9.2.3 AWHP 11 - 16 .....................................................126
9.2.4 AWHP 22 - 27 .....................................................132
9.2.5 MIT ......................................................................135
Contents
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24/09/2012 - 300027606-001-01
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