Please help me figure this problem out.
Initial problem:
by turning my AC unit on from the thermostat, everything seems to work fine, one hour later I notice the inside temperature is rising, inspecting the outside unit I discover that it was not running, setting the thermostat off and then on again made the outside unit working,the cycle repeat again,one hour later the outside unit was not running,after repeating the on and off from the thermostat the cycle reverse itself:
the inside blower didn't come on but the outside unit was running costing the inside lines to freeze.
At this time I replace the thermostat( Honeywell model 890121 ) with Hunter model 44260.
my first mistake was not to turn the power off from the fuse box wile replacing the tstat.
installing the new tstat only made things worse, now the inside blower is running constantly even when the controllers on the tstat are off and the outside unit is refusing to come on.

please help!!!!!!!
here all the numbers:
old tstat: Honeywell model 890121 five wires:red to G, yellow to Y, withe to W, red to R, blue to C
new TSTAT Hunter model 44260
inside unit name ? single phase 115 volts with circuit board : the are five 24 volts wires connected to: blue to C,yellow to Y, brown to GH, red to R, white to W.
there is two more separate 24 volts wires connected to: white to C,red to Y

Outside unit:
GE DAY NIGHT HIGH EFFICIENCY DELUXE.
they are 3 24 volts wires: red white green.
red is connected to a blue wire.
white to a brown wire.
green to nothing

 

check all the fuses that controll the unit maby my screwing around with the t-stat you messed somthing up and overloaded the system maby the t-stat is bad if you have any resets it control the unit see if they activated if they did reset know i don't know if this is possible or not if it is try it shut down all power the a/c unit wait a few minutes and than turn back on one item at a time if this don't work then you did somthing but i say it is either the fuses or the t-stat i say replace both you can get your money back if they are not the problem do throw away any recepts you might need them

 

Thanks,no fuses to be found! this furnace is about 19 years old,there is no power at the tstate and at the 24 volt wire to the contactor outside.
jumping the wires at the tstate did nothing,I also jump the 24 volts wires at the control board and nothing.
the outside unit will come on by pushing the contactor inn.
the transformer is by the control board with 4 wires:black, white, blue, red, black and white wires have power, the blue and red wires are dead, can this be a transformer problem? or control board?

 

problily the circuit i'm no electriction but try it replace it see what it does or jury rig it tape the contacter down with duct-tape and see if the outside unit works the way it is supossed to if so your contacter could be bad but if it works right when its jury rigged than its good enough untill you can find a replacement

P.S if the wires are bad than it might be the tranformer or the circuit if you know how to replace them replace both wouldn't hurt

 

Check the transformer and see if you have 24V there. look on the blower door, should be a wire schermatic there and check it out R should be hot to stat G should be blower W is heat and Y is cool. So you see the color you give dont check out. See how its wired there And at the stat.

ED

 

Thanks ED,
The colors I give are correct, those colors are from the transformer, the tstate wires colors are brown to G, blue to C, red to R, white to W, yellow to Y.
What is the right way to test the transformer or the circuit board ? I prefer to replace $ 35.00 transformer than the $ 300.00 board.
Here is all that has happened so far, maybe someone can make sense out of all this:
The ac was not operating as it should, the outside unit will stop running and the coil in the inside furnace will ice up; by turning the tstate off and on again will make the ac work normally for only a few hours and then it turns itself off again, that is the reason I attempted to replace the tstate, as soon as I replaced the tstate the power to all the 24 volts operating the tstate was gone! At this time I put the old tstate back on and nothing! no power. I checked all of the wires with a meter and there was no power at the tstate at all, only the blower fan stayed on and it is stuck on, the only way to turn it off is by the fuse panel.
At this time I suspect a bad transformer, I'm not sure if I tested this correctly, there are four wires on the transformer, the two left ( black and white ) I imagine the 210 intake are showing current passing through,
the other two ( red and blue ) 24 volts out are showing current only when disconnected from the circuit board, I get no reading when they are connected to the circuit board. One more fact that I discovered is that when I run my meter across the red 24 volt wire I get readings only in the top and bottom of the wire, there is no reading in the middle of the wire, could this be the problem?
Anyway, I insist on being Tim the tool man Taylor, and breaking something before throwing in the towel and calling a technician. Any suggestions would be appreciated!

 

Please do not do this above reccomendation. You'll end up ruining the compressor.

As you stand, what voltage do you now have on the secondary side of the xfrmr ??

 

just let me say sorry by reading other posts i thought the contacter was a safety swich like you find on a washer or dryer that prevents the unlt from runnning when the door is open if i knew that is not what is is and was DANGERUS I WOULD HAVE NEVER SAID TO DO IT

 

thanks!!!!!!!