Has anyone experienced/heard of anything like
this?
Setup: two outdoor wireless MS14A motion
sensors, both set to "talk" at channel-2.
TM751 wireless receiver controls a
porch-light switch (set to ch-2) and an
appliance-controller (also set to ch-2)
powering an ordinary door-chime. Initially
everything worked fine: either sensor would
activate both light and chime, and send the
"OFF" code properly one minute later, as
configured in the sensors.
After a couple of weeks, the failure mode is:
sensor "ON" triggers occur properly, light
and chime both come on properly, but then
never go off again. Suspecting the sensors'
"OFF" code transmission I tested the TM751's
functionality using the hand-remote. Manual
"ON" commands for ch-2 work, but manual "OFF"
commands do not, unless I approach within a
few inches of the TM751 antenna. In other
words, the manual behavior is consistent with
the motion-sensor behavior, appearing as a
low-sensitivity to ch-2 OFF-commands only!
Setting an extra appliance controller to ch-4
and testing again with the manual remote
handset produces problem-free ON and OFF
actions on ch-4, from 30 feet away from the
TM751. Similarly ch-1 (inside TM751) is OK.
Sooo...the TM751's sensitivity seems OK (ch-4
tests, and ch-2 ON actions), ch-2 OFF has a
problem (either auto from the sensors, or
manual from the handset) but it's not a
generic OFF-type problem, since both ch-4,
and the TM751's internal ch-1 switch ON and
OFF appropriately.
Any ideas? Before I deploy the ladders and
reconfigure the sensors etc. to use ch-4...
TIA,
Geoff.
