The directions are clear on the hard start capacitor concerning wiring it to the compressor and run capacitor. My question is to what do I connect the two black (line) wires. If I don't connect to my thermostat wire, won't the compressor run all the time ? After wiring the capacitor according to the diagram on the package, I have the original neutral wire that went to the compressor relay and the two wires that went to the original compressor relay left. How do I wire in the capacitor ? I am trying to install a Supco URC0810 3n1 start relay per local advice.
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you cannot bypass the start capacitor as it is vital to start the compressor
talk with an electrician the pink is the active (120v full time ) the blue is the neutral as it is the return wire and the black should be from the capacitor to the compressor (120v)
It is best advice to talk with an electrician before you do real damage to someone.
Wiring up a compressor
If there is an identifying mark on one side of the capacitor such as a Dash, Red paint or arrow pointing one direction that will be the run side of the capacitor, if no marks you can use either side for start or run.
If you have three terminals on the capacitor you have a dual capacitor, (C = RUN compressor and fan) (HERM = compressor start) and (FAN is fan start wire).
The Start wire goes to one side of the run capacitor it will be the only wire on that side of the capacitor.
The Run wire goes to the terminal side (T2) of the contactor, it will have another
wire from that terminal to the run capacitor which is the opposite side of the start wire.
The Common wire will go to the other side of the contactor (T1).
Start from the capacitor to terminal #1 on start relay There should be another wire from
here to start on the compressor.
Common from contactor (T1) to terminal #5 on start relay. There should be a wire from this terminal to the Common terminal on the compressor.(there will not be a capacitor in this circuit)
Run from the other side of the contactor (T2) to the start capacitor and from the other
Side of the start capacitor to terminal #2 on the start relay. There should also be a wire from this
Terminal to Run on the compressor.
Get rid of the hard start cap. Hard start capacitors should never be used in conjuction with normal compressor operation. Contact your local dealer for goodman and find the correct dual capactor for your machine and install it. Odds are your dual capacitor is either not functioning properly due to over voltage strike or it is the wrong size. On the wiring to your compressor, black is normally common and lead directly back to your main contactor. The red wire is the running lead and again normally goes to the c connection on the dual capacitor which leads back to the other side of the main contactor. The remaining wire on your compressor goes back to the herm connection on your dual capacitor. You may have swapped the wires for your power supply to your capacitor. I did this once and I figured it out about 5 hours later after I performed a wire by wire check against the wiring diagram. If you switch the wire around you turn the start windings into run windings and vice versa. They are not designed to be interchangeble. Just check your wiring against the diagram and the problem should clear up.
Hope this helps.
It's very simple to install a 3N1 Supco Hard Start Relay, Some refrigerators have a run capacitor located on compressor or mounted nearby. It will be important that you use the run capacitor in with the 3N1 Hard Start. Here is a Photo of the=> URCO810_3_N_1
The instructions come with the 3N1 Hard Start Relay. Can you please post the model number of your refrigerator here so I can look up a wiring diagram? Look around the fresh food section door frame for your model number. I do need to know so we can get the right run capacitor in the 3N1 hard start circuit, Thanks Sea Breeze
Start capacitors are disconnected when it is reach a full RPM.
Use a AVR tester - measure AC voltage across capacitors. It shall be off in a few seconds after is running.
If not - centrifugal switch or its components are problem.
depending on the model and the part # of the ptc overload relay will tell you how to wire it back as was,on some ptc O/L's there are spaces on the component where you just plug it on piggyback to this ptc,if not then all you do is wire the capacitor in parallel to the 2 power pins on the compressor,the cap doesn't actually start or run the units compressor,its there to help suppress the arcs on the relay when it starts,the compressor will operate without this capacitor
The fan motor can be wired correctly for up flow and still run backwards for downward flow or reverse when you put the wrong value capacitor or connect a hard start capacitor to an already bad start dual cap. Case in point: I come across a condenser where the fan motor is running (in the right direction, up) but the compressor is not. I put a hard start cap on the dual cap. The compressor comes on but now the fan motor runs reverse. No other wiring was changed. The hard start cap connected to the defective compressor start cap shifted the current, voltage phase 180 degrees to make the fan motor run backwards. I removed the hard start cap, removed the defective dual cap and replaced the dual cap with a known good one and everything worked correctly.
Most likely a bad motor or bad capacitor. I would check the capacitor first as this is probably a $20 fix. The fact that it runs in the correct direction but at a reduced speed really leans hard to the capacitor.
Good Luck and hope this resolves things for you. Let me know.