Notes

How exactly to Replace a Refrigerator Compressor
When the compressor becomes faulty, your fridge cannot operate correctly, and you also run the risk of having to throw food away.

So, if your refrigerator compressor has broken down, it will need to be replaced. However, before you replace the compressor, you should weigh the cost of replacing it with purchasing a new refrigerator. Investing in a new refrigerator may be a better choice.

Replacing a compressor is an extremely difficult repair to make and involves welding. You should only attempt this repair in case you are experienced and/or a professional technician. It is also an extremely dangerous repair to carry out, as it involves dealing with highly flammable gasses.

Here`s a step-by-step guide for how exactly to replace the compressor.

Step One. Remove the Old Compressor
The first step would be to take away the old compressor. To do that:

Turn the power off to the refrigerator and pull the plug out.
Remove each of the contents of your fridge. Since replacing a compressor may take a long time, it will be best to place your food into coolers.
Pull the fridge right out of the wall to help you access the back of it.
Remove the back panel of the fridge. To remove the panel, you just have to unthread the screws that hold it set up, and it should come off. Once removed, place it taken care of.
Locate the compressor. It is behind the fridge on underneath of it.
Disconnect the power cable, and take away the cover that protects the electrical components.
Remove the relay, the capacitor, and the overload protector.
Release the refrigerant by attaching a perforating valve onto the procedure tube and releasing it. Make sure you have adequate ventilation.

Once released, you must connect a nitrogen cylinder onto the manifold and inject the gas at a pressure of 50 PSI.
Remove the manifold valve.
Sand the compressor tubes in the areas which were soldered so that they are abrasive.
Slice the discharge and suction tubes (leave about 20-30 mm from the end of the process tube).
Remove the compressor.
Remove the filter. You should employ a soldering torch (work with a neutral flame).
If the compressor motor burned out, you need to clean the tubes. This is done by welding on a tube connector to the suction line and then charging a cylinder with about 500 ml of solvent. You then attach the cylinder to the suction line and attach the finish of the cylinder to the solvent cylinder. Put the end of the capillary right into a container to get the used solvent. https://rentry.co/pfboc is possible to inject the solvent through the system. After that, you need to supply the system a nitrogen charge to drive out any residual solvent.
Step Two. Install the New Compressor
Given that you have removed the old compressor, the next thing is to install the new one. To do that:

Attach the new filter (ensure you have the right one). You first have to solder a Schrader valve onto the excess connection (make sure you take the cap off before welding). Next, connect and weld the filter onto the condenser outlet. You can then attach the filter to the capillary tube and weld it on.
Place the new compressor into the correct position.
Connect all of the tubes around it, and weld them on.
You should then execute a leak test by injecting nitrogen into them and using a sniffer tool. In the event that you don`t have a sniffer tool, it is possible to place soapy water onto them and appearance out for just about any bubbles that appear, as this means that there is a leak. Once tested, release the nitrogen.
Use a vacuum pump to remove air from the compressor.
Install the capacitor to the relay, followed by the overload protector, and attach the relay to the compressor`s terminal.
Connect the coolant system wires to the relay and the overload protector terminals.
You can now put the electrical components cover back on.
Fill the compressor with refrigerant (be sure you have the correct volume).
Double-check that of the wires and tubes are correctly positioned, and if so, your new compressor should now be successfully installed.
Step Three. Test That It Works
The final step is to test your new compressor works. You are able to do that simply by turning your refrigerator back on and testing to see if it is working. If not, you will have to contact a technician to have a look at it.

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