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Picture of aguilar64
posted
I have a Central Air question; I changed the blower motor and now that works fine. Unfortunately, the condenser does not start, it was working up until the day the blower fan died. The condenser has electricity since the person who helped me can start it up by removing the cover and tripping the switch on the condenser unit.

By the way the capacitor is ok.

I was told that the thermostat might not be sending the signal to the condenser and it could be bad, I put a new thermostat and still doesn’t work. Before I go up to the attic, is there a cable I might have not plugged in that sends the cold air request?

By the way if I turn the fan on, it works fine. The wires are connected to the right color/letter on the new thermostat, it is identical to the old thermostat.


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“When the law disarms good guys, bad guys rejoice.”
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Posts: 2225 | Location: North East | Registered: November 02, 2007Reply With QuoteReport This Post
fugitive from reality
Picture of SgtGold
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I'm assuming you mean your compressor won't come on. The condensor is a coil system and it's inert. Is your thermostat battery powered?


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Posts: 7190 | Location: Newyorkistan | Registered: March 28, 2007Reply With QuoteReport This Post
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Picture of aguilar64
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the part/motor that's outside. I put a brand new thermostat and new batteries.



********************
“When the law disarms good guys, bad guys rejoice.”
― Ted Nugent

 
Posts: 2225 | Location: North East | Registered: November 02, 2007Reply With QuoteReport This Post
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Problem: outside unit doesnt operate after changing indoor blower motor.

Why: the outside contactor isn't getting 24 volts from the indoor unit.

Reason: you changed the blower and unhooked the stat/control wiring.

Solution: connect thermostat and control wiring correctly.

Stat cable to control board:
Red to red (r)
White to white (w)
Green to green (g)
Yellow to yellow (y)
*sometimes blue is used for yellow

Condenser to control board:
Red to yellow (y)
White to common (c)
*will have more wiring, if the unit is a heat pump




 
Posts: 10062 | Registered: October 15, 2008Reply With QuoteReport This Post
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Picture of aguilar64
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These were the exact colors before I removed the previous thermostat

I'll have to look at these
Reason: you changed the blower and unhooked the stat/control wiring.



********************
“When the law disarms good guys, bad guys rejoice.”
― Ted Nugent

 
Posts: 2225 | Location: North East | Registered: November 02, 2007Reply With QuoteReport This Post
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I'm referring to the wiring in the indoor unit, that you unhooked to replace the blower motor.
Since it didn't work after you replaced the motor and *before* you changed the stat.

Looking at the above stat wiring...
Do you have separate heating and cooling equipment?




 
Posts: 10062 | Registered: October 15, 2008Reply With QuoteReport This Post
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Picture of lee40215
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Looks like you need to unhook the red wire on the rc and put a jumper wire between r and rc to get your 24 volts on cooling. Is the red wire tied in with your cooling y wire/
 
Posts: 1100 | Location: Louisville, Kentucky | Registered: August 28, 2006Reply With QuoteReport This Post
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BTW, the original Honeywell stat is probably better than any stat you purchased to replace it.




 
Posts: 10062 | Registered: October 15, 2008Reply With QuoteReport This Post
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Picture of aguilar64
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I think I moved the wires without knowing. Can anyone tell me if at all possible how are they supposed to be "wired"?

The red wire standing straight up goes to the motor outside (Compresor)



********************
“When the law disarms good guys, bad guys rejoice.”
― Ted Nugent

 
Posts: 2225 | Location: North East | Registered: November 02, 2007Reply With QuoteReport This Post
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Picture of lee40215
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If the red wire standing up is for the ac outside need to see if it is going back to the furnace and hooked up to a different colored wired if not and it goes straight to the Tstat it goes on the yellow terminal. On the tstat you should have had a small jumper that came with the stat and needs To go between r and rc to power it in the cooling mode. Usually the wire going out to the ac one has the 24 volts on it the other goes back to the common Which goes on the terminal board so check and see which goes to common could be either red or white the other will be the wire going to the stat.
 
Posts: 1100 | Location: Louisville, Kentucky | Registered: August 28, 2006Reply With QuoteReport This Post
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