A/C troubleshooting questions?
1. How to check to see if the fan motor is any good?
2. How to check to see if capacitor is any good?
3. Looking at the capacitor from left to right, the left terminal has two prongs but not connected. The middle terminal has four prongs connecting to a red wire, orange wire and a yellow wire. The right terminal has 3 prongs connecting to the yellow wire.
Which terminal is C, F or Herm?
Answers:
Ok lets start with the last question you asked. The capacitor you describe is what we call a "hermy". All it is is 2 capacitor in one. The "C" terminal is common, the "HERM" terminal is hermetic or compressor, and the "F" terminal is fan. If there isnat any wires on the tone terminal, that would tell me that the fan has ben replaced and they added their own capacitor at the time of the fan replacement and kept the "original" hermy capacitor to run the compressor. I bet if you look some morte, you will find another smaller capacitor somewhere in the unit. If not, to wire this cap. isn't to hard. Wire colors differ with differnet units, but the center term should be common. The wire from the contactor on the opposite side of the black wire to the compressor should go there. That "powers" the capacitor. This terminal can also have a wire going to the compressor to the "RUN" terminal. This wire can be usually red or yellow. On the "HERM" terminal, a wire runs right to the compressor and hooks to the "START" terminal. The "FAN" terminal has a wire and goes to the fan motor. If it is the original fan, it is usually a brown wire, with the other two wires going to the contactor with the compressor wires. Hook the two blacks on the same side of the contactot and power the capacitor with the other side of the contactor. Unot should come on and run fine! The easiest way to check a capacitor is change it out and see if that fixes it. Capacitors dont go bad very often though. To check the fan motor, grab the fan and try to move it side to side. There should be no side play in the bearings of the motor. Up and down is ok, but not side to side. Next use a ampmeter to check amp draw while the motor is running. The max amp draw(RLA) should be on the nameplate of the unit or nameplate on the motor. The amp draw has to be under the RLA on the nameplate. If it isnt, you can try oiling it, or replace it. Hope this helped! Any other questions, just ask!! Good luck!!
Other answers:
you have done your homework! beats me how to work on one but maybe someone can tell me why my ac doesnt seem to cool good and i noticed it is not dripping outside as normal.
you have done your homework! beats me how to work on one but maybe someone can tell me why my ac doesnt seem to cool good and i noticed it is not dripping outside as normal.
there should be wires connected to all three of these. check the schematic . it should be in the unit on the door panel usually. also, the cap. is marked. if you look closely to the top , c, f, herm, are stamped into the metal at each term.