User's Manual

September, 2005 – Operators Manual
ENERNET Corporation
9
TROUBLESHOOTING FAQ
“Where should I locate my thermostat?”
For best performance results, the thermostat should be located
approximately five feet above the floor on an inside wall in an area
with good air circulation. A thermostat should not be located where
air is stagnating such as behind doors, in corners or under cabinets.
Hot or cold drafts from air ducts and windows should be avoided.
Avoid heat from the sun, lighting fixtures, appliances, fireplaces, etc.
“What does the antenna symbol on the display mean?”
The T9000 thermostat will display the antenna icon as
long as it is able to communicate with its RCN(s). If after several
tries communication is not established, the antenna icon will turn off.
This may be caused by control node power being disconnected.
(NOTE: Some T9000 displays use the “RF Link Fail” message in place of
the antenna symbol. In this case, as long as the thermostat is
communicating with its RCN(s) there will be no symbols or messages to see.
The “RF Link Fail” message is the equivalent of losing the antenna
symbol.)
“What do I do if the antenna symbol is no longer displayed?”
Check power to the equipment (i.e. Window a/c, baseboard heater,
fan coil unit). With power restored, force the thermostat to talk to
the RCN(s) by pushing the FAN button or running the set point
temperature above or below the room temperature (above in heating,
below in cooling). The thermostat will also automatically try to
communicate within a maximum of ten minutes from the last
attempt. If communication is successful the antenna icon will turn
back on. Coincidental RF interference could be cause for a
temporary loss of communication. In virtually all such cases, the
interference is temporary. The thermostat will attempt to re-establish
communication with its RCN(s) within a maximum of ten minutes.
(NOTE: If your T9000 uses the “RF Link Fail” message, it will be
displayed whenever the thermostat is unable to communicate with its
RCN(s).)
“I just installed the thermostat and the antenna symbol comes
and goes. What should I do?”
A weak RF signal between the thermostat and one or more RCN is
the cause of this. The further away the thermostat and RCN are from
each other, the weaker the signal becomes. The same weak signal
effect is caused when something is partially shielding or blocking the
T9000’s RF signal energy. Distance, particularly in residential
situations is typically not a problem. The most common cause for a
weak signal is sheet metal shielding the RCN. When installing,
choose a location that is not completely surrounded by sheet metal.
In some cases to overcome a weak signal problem, the RCN has to
be relocated or the thermostat moved closer to it. In rare cases where
the RCN can not be repositioned or where it is completely enclosed
in a sheet metal control box, a small section of sheet metal may need
to be removed and if necessary replaced with plastic.
(NOTE: Always consult with an HVAC contractor or manufacturer
before modifying any equipment electrically or structurally.)