7.14.2 Example 2: Mismatch between Cables Connecting Indoor and
Outdoor Units and Corresponding Piping (All Model)
The remote control is not showing any malfunction and the system is operating but there is no
flow of warm air from the indoor unit (in heating mode).
The connecting cables and the corresponding piping were not correctly matched.
Recabling was carried out and the fault disappeared.
! Special care must be taken when the pipework and cabling are carried out by different
! Run each indoor unit in turn to check that the system is correctly matched.