Honeywell HCI 300 Installation And Operating Instructions Manual page 40

Appendix
Display of
Hometronic
Manager switches
to "Default settings"
or "No Parameters"
instead of "Current
values:".
38
Communication with Hometronic Manager
HCM 200 may have been interfered with.
Check power supply to HCI 300.
►
– or –
► Repeat binding (see "Performing binding"
on Page 17).
Improve
►
"Improving data transfer" on Page 20).
the transmission (see