Thermostat RTH3100C


  #1  
Old 11-26-07, 08:30 PM
H
Member
Thread Starter
Join Date: Nov 2007
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Thermostat RTH3100C

Changed out old thermostat T874R with new digital RTH3100C
honeywell.

T874R WIRING DIGITAL RTH3100C WIRING
W-WHITE E-LIGHT BROWN
B-BROWN AUX-WHITE
G-GREEN Y-YELLOW
R-RED G-GREEN
X-N.C. O-ORANGE
H-N.C. L-N.C.
O-ORANGE R-RED
Y-YELLOW B-N.C.
T-N.C. C-BLUE
Heat will not stay on very long, cycle on and off,temp will not raise when you call for more heat..is it a wiring problem??
 
  #2  
Old 11-27-07, 08:26 PM
Jay11J's Avatar
Member
Join Date: Sep 2001
Location: Rochester, Minnesota
Posts: 18,427
Upvotes: 0
Received 0 Upvotes on 0 Posts
I am not clear on what you are trying to show?

T874R WIRING DIGITAL RTH3100C WIRING
W-WHITE E-LIGHT BROWN
B-BROWN AUX-WHITE
G-GREEN Y-YELLOW
R-RED G-GREEN
X-N.C. O-ORANGE
H-N.C. L-N.C.
O-ORANGE R-RED
Y-YELLOW B-N.C.
T-N.C. C-BLUE
do you mean on the old T874R hook up was,

B-Brown
G-Green
R-Red
X- N.C? (No wire?)
H- N.C
O- Orange
Y- Yellow
t-


and on the new RTH3100C,

E- Light brown
Aux-White
Y-Yellow
G- Green
O- orange
L-
R-Red
B-
C-Blue

What is the make and model of the furnace (or air handler?)

and outdoor unit?
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: