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4 wires** blue/red/green/white****need to wire rth221b

Asked May 26, 2010, 07:04 AM — 4 Answers
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KISS's Avatar
KISS Posts: 12,613, Reputation: 4388
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#2

May 26, 2010, 08:03 AM
<Moved from Home electronics>

Blue is a non standard color

Red is R
Green is G
White is W

Blue is probably why
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Theswagg01's Avatar
Theswagg01 Posts: 23, Reputation: 10
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#3

May 26, 2010, 10:05 AM
Blue is the common wire, Red is a/c, Green is blower, White is heat. Sometimes yellow replaces red.
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Joshdta's Avatar
Joshdta Posts: 2,453, Reputation: 230
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#4

May 26, 2010, 02:48 PM
Quote:
Originally Posted by Theswagg01 View Post
Blue is the common wire, Red is a/c, Green is blower, White is heat. Sometimes yellow replaces red.

When does red ever replace yellow? Blue replaces yellow.
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wmproop's Avatar
wmproop Posts: 3,738, Reputation: 554
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#5

May 26, 2010, 06:47 PM
Quote:
Originally Posted by Theswagg01 View Post
Blue is the common wire, Red is a/c, Green is blower, White is heat. Sometimes yellow replaces red.
I guess its according to what world you live in,in our world red isn`t replaced by yellow
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