I'm having a problem with a new wireless thermostat and wonder if I
could get some advice.
The thermostat is a Carrier TSTATCCPRF (thermostat) and TSTATCCREC01
(receiver). The manual is at
or http://tinyurl.com/2fntx3 , or see
or http://tinyurl.com/yvxdah for the entire set.
The furnace relay on the other end is a Honeywell R845A (manual at
http://tinyurl.com/yskwj4 ). This is for an oil fired furnace.
I have the T T connections from the relay going to the W and R
connections on the thermostat.
Now, when I first hooked up the thermostat, everything worked fine for
a while. Then the relay at the furnace started buzzing. This happens
even if the transmitter and receiver are right next to each other.
When I put back the old thermostat the problem goes away. I got a
replacement thermostat of the same model and the same problem happens,
so I don't think it is defective.
The back of the manual mentions that with a 4 wire system, adding a
270 ohm, 10 watt resistor across the Y and C terminals at the furnace
will provide more power, but I have a 2 wire system and I'm not using
the C terminal.
Thanks for any advice you can give on this problem.