How can I identify compressor terminals? - Magic Chef MCWC30MCG Compact Wine Cooler

Check the capacitor for the compressor can be 25mfd, 35mfd 50mfd, depend of the compressor size for that you need a tester with that function on it, if the capacitor look like bump at the terminals is bad too, also check terminals at the compressor one maybe burnt, last check would be continuity from compressors terminals to ground if there is any continuity in at least one terminal compressor is blown, if you don't find the compressor grounded, check continuity between terminals if one is missing compressor is bad, Disconnect the powerrrrr first. sure thing you can find videos in youtube and goggle how to read capacitors and or continuity.

The contactor should be the only part that your main voltage wires, from the house to the o.d. unit, connect. The control wires connect to the terminals that are opposite of the line voltage wires. If the line voltage wires(wires that come from the house & the wires that supply through the unit) connect on top and bottom, there should be a connection on the right(2 terminals) & on the left (2 terminals). Doesn't matter which control wire goes on what side. Google : 2pole condenser contactor, should give you a picture of the contactor. Don't forget to turn off the power first

Capacitor Failure Symptoms are sometime harder to identify without the right tools and expertise. Capacitors can be found in several different sizes and shapes. There may be one or multiple capacitors included in your ac with regards to the design. While the most popular capacitors are the types found on circuit boards, the ones most associated with air conditioning will be the bigger capacitors that assist start and run your motors. There are several motors present in an conditioner and heater systems:

1. Compressor Motor Run Capacitor: Here is the most popular capacitor that fails. Most of the time these are duel capacitors, which means that there are 2 capacitors built into one. A duel capacitor will have three terminals on the top where a single capacitor will simply have two terminals on top.
2. Outside Fan Motor Run Capacitor: That is the smaller capacitor found with or part of the Compressor Motor Capacitor. It helps start and run the outside fan that blows air through the outside coils.
3. Indoor Blower Motor Run Capacitor: Similar to the outdoor fan motor capacitor, it is a small, single (two terminals) capacitor that will help start and run the indoor blower motor.
4. Start Capacitor: Some models include an auxiliary start capacitor that helps jump start the motors. Most are found on the compressor. These are less common.

You may need to get that checked out.
Air Conditioning

There should be 3 terminals on the capacitor marked "C" "F" and "H".
A wire from the high voltage contactor goes to the "C".
Another wire from "C" goes to the compressor.
These wires are usually red.
The "F" terminal has a wire going to the fan,usually a brown wire.
The "H" has a wire going to the compressor,usually yellow.
There should be a wiring diagram on the control box cover identifying the terminals,colors and number of wires.

Change the start relay.

The compressor relay can be accessed by removing the terminal cover box. The cover is held on by a tension spring or with a retaining clip.
Beneath the terminal cover is found the compressor relay , overload protector and the electrical terminals of the compressor motor. Remove the compressor relay by pulling it straight off from the compressor.
Pull the wire off of the side terminal of the relay. It is connected with a slip on connector. Firmly pull the connector, do not pull on the wire. You may need to use a pair of needle-nose pliers.
Inspect the connector for corrosion. If it is corroded it should be cleaned or replaced.
Reattach the wire to the new compressor relay and press the relay back onto the compressor terminals. Replace the terminal cover box and plug in the refrigerator.

Tecumseh terminal pins always thought of
in the order: Common, Start, Run. To identify the
terminal pins, we read the order exactly as we would
read a book: That is, we start at the top left hand
corner and read across the first “line” from left to
right. We then drop down to the second line starting
at the left and read across. Some compressor models
have terminal pin identification embossed on the
protective terminal cover.
The common will go to the external overload protector. The run will be connected to the power side of the relay.
Hope this helps.

Before attempting any of these recommendations, First disconnect all the power sources and check your wiring diagrams on the motor and condensing unit.
On the old capacitor if you look on the top near each of the three terminals. Are they marked, fan - C - herm? If they are that is a dual capacitor and that needs to stay because that is also your compressor capacitor.
The Red wire from the conductor is Run and it's connected to C on the old capacitor.
Follow the Yellow wire and see if it goes to the S or start terminal on the compressor, if it does then that is the Start wire for your compressor and it connects to herm on the capacitor.
For the fan motor a lot of times the wiring connections are printed on the motor label.
Check the label, Purple should be run and connect to C on the old capacitor.
Black should be Common and it connects to the opposite side of the contactor as the Red wire. If the Red wire connects to T1 then the Black wire connects to T2.
The Brown wire shoud be the start wire on the fan motor and it connects to the Fan terminal on the old capacitor.
Now if you want to use the new fan capacitor. Take the Purple wire from the motor and look for any marks (red paint or a dash) on or beside the terminals on the new capacitor. If there is an identifying mark then connect the Purple wire to that terminal, if no marks you can connect it to either terminal. Then you need a jumper wire from C on the old capacitor to the purple side of the new capacitor. Then take the brown wire and connect it to opposite terminal of the new capacitor.

OK, locate the terminals on the capacitor marked "HERM"(Compressor lead), "FAN", and "COM".(common)

HERM and COM remian as they are.

The wire going to "FAN" (usually brown) will be placed on either terminal of the new capacitor. (This is the ((usually brown)) wire comming off of the fan motor.) An additional wire needs to be run from the other terminal of the new capacitor to the "COM" on the old capacior.

What you are doing is bypassing the fan side of the old capacitor but still using the compressor side of the old Cap.

The fan should have a wiring diagram on it to help identify the wires if there is no brown wire. The other two wires will be identified on the wiring diagram as well, but one typically goes to the contactor and the other to the board.