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Wiring diagram RSG5DURS required

Compressor not starting,

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Peerless 3.5 single phase compressor with 2 capacitors. require wiring diagram

one is a motor start. The other is a run cap. The run cap will be low value. 4-7uf. the start will be higher. 30-50uf maybe? With pics of the caps and wiring I can help.

Oct 15, 2016 | Air Tools & Compressors


COMPRESSOR check outs semplified.

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} If your wondering how to check out your refrigeration compressor;
Modern Compressors have two operations that have to work together just to run. More items must be considered for them to work and work efficiently in systems. The 2 areas that must work together are electrical and mechanical. Either your compressor is broken inside or the motor and or start components are not working properly.

Ohm the compressor terminals to ground and across to each other.
1. If any read anything to ground the compressor is bad. If not go on to the next step.
2.Your readings between the compressor terminals should all be different and you should have 1 low 1 medium and 1 high resistance reading.
Add the low and mid reading together and the sum should be close to the highest reading. If it reads say 20% more or less then retest it a couple of times to confirm your not slipping on the terminals. If you get only 2 readings don’t panic wait 24 hours for the motor to cool off for sure and recheck it. If still no reading then your compressor motor is open. A new compressor or replacement of the appliance is required. If you now get the 3 readings described make a diagram you feel comfortable with as to where the wires go to each component before removing anything, then continue:
3 Assuming the above checks out: Get a new *Start relay *start capacitor if so equipped relay *external overload and *run capacitor if it has one. In other words everything that is external and attached to the wires or terminals on the compressor or wiring per your diagram and replace them on to the compressor. Then if it starts problem solved if it still does same thing the compressor is bad (broken mechanically inside the compressor) and you have to decide to replace compressor or replace the refrigerating compressor be it AC or Refrigeration.

*May or May NOT have this component:
*Start Relay:
MOST 99.999…% of refrigerators of the household type have a start relay of some kind and they vary in size shape and color. It plugs directly onto the compressor. SOME AC units but not all have one and it is different. These Resemble a box about 2”X2” X 3” with at least 3 terminals on it and these 3 terminals are marked 1, 2, & 5. Each of these will have at least 1 wire on them and there may be other terminals (4 & 6) as well that can be used with several wires on each.
* Start Capacitor
100% of AC and Commercial compressors that use a start relay (and remember some do not have one but those that do…) and only some domestic refrigerators use a Start Capacitor. At least 2 wires going to a black (usually) cylinder which is the start capacitor. Start Capacitors ALWAYS HAVE 2 or more Wires and ALWAYS HAVE TO HAVE A START RELAY.
*External Overload
MOST 99.9% of Household refrigerators, 80%+ of smaller commercial refrigerators, and most 90% of window unit AC’s but almost no central AC compressors Have an external overload. Those that do not have an internal overload. These vary in size and color and description a basic one is round 2 wires and generally black about quarter size USA AND IF USED ALWAYS MOUNTED ON THE COMPRESSOR with the other wires and terminals there.
*Run Capacitor
Some domestic refrigerators (can be a small rectangular box) medium and larger refrigeration and (99.999%... of all) AC central and Window units have a compressor that requires a run capacitor. These type units also have a fan motor that can require a run capacitor. These Capacitors always have at least 2 wires and often 3 or more if the capacitor also is wired to the fan motor.
If a compressor is tight due to linear expansion from heat a tip worth remembering is as something cools it contracts, except for water at freezing. A few times I have gotten a compressor to start after leaving it off for 6 to 12 hours then retrying it. See the compressor unless left off for 6 to 12 hours and sometimes as long as 24 hours may have expanded parts from heat. About 1/2 the time it is ok after new start components are installed with a start capacitor and relay. The other 1/2 the compressor will be ok for a day or 2 then stop again. A “hard spot” in the movement of the internal parts in the compressor, and stopping on this hard spot it can’t overcome the “tightness”.

If you follow most of these steps above you will arrive at a correct diagnosis well over 90% of the time ( allowing for what is unusual or for misunderstandings)

30 years of doing refrigeration and this has not changed..
Please rate me as high as you can and ask me to clarify anything you don’t understand.

on Apr 15, 2009 | Carrier 38BRC036 Air Conditioner

1 Answer

Need to identify the prongs on my compressor. embraco egy90hlp wiring diagram

PDF]General Index - Embraco

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Jan 18, 2016 | Refrigerators

2 Answers

Need wiring diagram on compesor

The compressor has three terminals, Common, Start and Run.... The terminals read left to right, top to bottom just like pages in a book. So if theres one on top, its Common then Start will be the first one in the next row. If theres two on top, it'll be Common on the left and Start on the right then Run on the bottom.

The run capacitor wires in between Start and Run and line voltage is applied to Common and Run.

Apr 11, 2015 | Goodman CKL36AR36 Air Conditioner

1 Answer

Wiring diagram for starting a stock up compressor

I assume you mean a stuck compressor. Sometimes an a/c unit sitting all winter will have a stuck compressor. Open the cover on the compressor to expose the terminals and switch the start and run wires. Turn the power on for a second and then switch the wires back to normal. Turn the unit on and see if the compressor starts. you can also add a start assist device which will help in low voltage conditions or if you have a tight compressor.

May 19, 2014 | LG LSC121PMA Split System Air Conditioner

1 Answer

Please give wiring diagram to wire compressor model UG5A240JUBEM

Your compressor is going to probably require at least a run capacitor wired between the start and run windings. You need to contact the manufactuer to determin the correct size

Apr 17, 2014 | Samsung 1.5 Ton Rotary Compressor 18k Btu...

1 Answer

How hard is it to change the start componants on a bosch fridge freezer cooler compressor unit,

Hi, if the compressor has a separate start/run capacitor, its a matter of making sure you have the right replacement part, with the right microfarads and volt such as 370 volts X 20uf ( example only ) capacitor. Since this compressor is only a single phase compressor, it will have 1 capacitor on it called a run capacitor, even though it starts the compressor also which then the start winding of the compressor will drop out. # phase units require no start or run devices at all!. It will also have a external overload protector, located behind the cover where the wiring connects to the compressor. You will have a S, R, And C for common terminal. The overload is held in place by a strip of flat metal which acts like a spring holding it against the body of the compressor, so if the compressor gets hot for some reason, it will cause this metal strip to expand and trip the black common wire which kills power to the compressor. This keeps it from burning out 95% of the time. So, if you are having a problem with the compressor not starting, start at the thermostat to see if you are getting full voltage to the compressor terminals using a a/c volt meter. If not and you just want to change out the componants that start the compressor, it will be just a capacitor that has 2 wires coming out of the top of it. Look on the diagram and it will show you where it is.
A/C, & Heating Contractor, Commercial Refrigeration Repairman

Jan 16, 2011 | Heating & Cooling

1 Answer

Require instructions and wiring diagrams for Celestial KFR-70GW/K

If you pull the unit out of the case it should have a wireing diagram in a envelope near the compressor

Jul 17, 2009 | Frigidaire FAA065M7A Air Conditioner

2 Answers

Fride not cooling on eather side..

I believe your start relay and capacitor need replaced or the compressor is defective. Don't allow it to continue to try to start until we can find the problem. Let me know, Sea Breeze

Apr 23, 2009 | Maytag MZD2766GES Side by Side...

1 Answer

Need copy of wiring diagram

There should be a wiring diagram tucked in a pouch under the bottom of the refrigerator.
If the compressor windings show proper resistance, my first guess would be a faulty start relay.
A 3-n-1 start may fix your problem.
This suggestion is "old school". I've been away from it for a few years.

Mar 20, 2009 | Refrigerators

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