Re: Duo-Therm furnace/AC problem
Len,
Try the reset procedure. Had this same problem a year ago while in Miami. Prior to reset though remove thermostat from wall and check cleanliness of phone/flat wire connection on back side. First time I looked thier had a dust bunny the size of Texas in their.
Jeff
The reset procedure is as follows:
a. Turn the ON/OFF switch to ON. The display light with
data should come on. If the light and data are not there,
see Section B2 Cable Assembly.
b. Depress mode to activate display light.
c. Depress the bottom two buttons (up & down) together.
d. While still holding the two buttons add the third from the
bottom (mode) , hold all three for a few seconds.
e. Release the third (mode) button.
f. Release the bottom two (up & down) together.
g. Depress the mode button. The display light should be
off. If not, repeat steps 2 through 6.