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My air cond. wont kick on neither will the fan. could it be my thermostat? do you need to charge house air cond? could it be out of freeon

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If the a/c is not turning on it is a power problem The thermostat turns the system on and if it is bad it won't let the system come on. The way to see if it is the thermostat is by this. 1st take the thermostat off the wall. Make sure you take care in the removal of the thermostat Use a pen and paper to mark where you removed your wires. There should be 6 wires on the system however the wires that you need to worry about are red, green, yellow, white. If you turn off all power to your a/c system at the breaker box. This should be a dual 60 amp breaker, once the power has been disconnected twist together the red,green and yellow wires. Go backto your breaker box and turn the a/c system back on. If your furnace and outside unit come on the problem is with the thermostat at this time replace it. If the system doesn't come on then there is an electrical problem which could be quite a few things that would call for a tech to come check out your unit. Good luck on your repairs

Dave

Posted on Sep 03, 2009

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Air handler


This should be doable: First get pen and paper-start at the furnace, theres a group of 5-8 wires leaving the furnace anfd going to the thermostat and a group of 2-3 going to the condenser outside that all need to be identified and the location in the furnace recorded if your furnace has a control board simply right the letter and the corresponding wire color:and whether it belongs to the condenser grp or the T-stat grp.

Furnace
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C-yellow to cond
Y-red to cond and yellow to t-stat
G- green-to t-stat
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If you dont have a circuit board youll be doing the same thing but using the components rather than letters;

Transformer 24v- red to t-stat
transformer 24v com -yellow to cond
Red from cond connected to yellow from t-stat
fan relay - green to t-stat
gas valve - white to t-stat

K then go to you t-stat and simply connect the corasponding component or leter to the thermostat gterminal

Cond Furnace Thermostat

yellow com- blue -C or B
gas valve or w-white -W
fan relay or g -green -G
trans 24v or R -red - R
red connection to cond or Y on board -Y
Hope this helps.

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