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View Full Version : Wiring issues on honeywell rth3100c


tonyab
Jun 20, 2009, 05:44 PM
I am trying to install my honeywell rth3100C but I don't know where the wires goes to

What color wire goes to the following

E aux y g o l r b c

Joshdta
Jun 20, 2009, 05:48 PM
What colors were no the old stat?

Joshdta
Jun 20, 2009, 05:50 PM
R=red jumped to rc
aux= white jumped to e
green=g
c=blue
L=black
o=orange
b=not used

This is the most common setup but we need to now what wires were where on your old stat.