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Carrier Air Conditioner/Model # 38TG030300

Yesterday it was only putting out faintly cool air. I turned the unit off, hosed it out, changed fuses and turned it back on. It worked perfect, until now.
It started to do the same thing so I turned it off and checked the fuses, searched for any loose wires.... I'm lost. Now the fan kicks on and off but the unit itself doesn't seem to be kicking in.

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Hmm It's passable that the condenser fan motor is not spinning at speed or is running for a period of time and over heating and the Condenser fan motors internal overload protection trips and takes it of line shortly thereafter, of course, the compressor internal overload trips and takes it of line. Spraying with the water hose sped up the cool down on the internal overloads but I'm afraid it probably didn't do much to help the original problem. You could try replacing the Fan condensing motor capacitor-(it's listed on the side of the motor if the capacitor cant be read) and oiling the motor if it has oil ports (2 small plugs located along the perimeter of each end of the motor). If the motor can be oiled and you replace the capacitor theres a fair chance you might get by another year without replacing the condenser fan motor. Charged capacitors pack a nasty jolt so be careful, hope this was helpful, GL!
P.S. If it is the cond. fan motor and you replace it be sure you get a sealed outdoor rated cond. fan motor and the appropriate rain guards are installed.

Posted on Jun 12, 2008

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