When the compressor becomes faulty, your fridge cannot operate correctly, and you run the risk of experiencing to throw food away.
So, if your refrigerator compressor has broken down, it'll need to be replaced. However, before you replace the compressor, you should weigh the expense of replacing it with investing in a new refrigerator. Investing in a new refrigerator may be a better choice.
Replacing a compressor is a very difficult repair to create and involves welding. You should only attempt this repair for anyone who is experienced and/or a qualified technician. Additionally it is an extremely dangerous repair to carry out, as it involves working with highly flammable gasses.
Here`s a step-by-step guide for how exactly to replace the compressor.
Step One. Take away the Old Compressor
The first step would be to remove the old compressor. To do that:
Turn the power off to the refrigerator and pull the plug out.
Remove all of the contents of your fridge. Since replacing a compressor can take a long time, it will be best to place your meal into coolers.
Pull the fridge right out of the wall in order to access the back of it.
Take away the back panel of the fridge. To remove the panel, you just need to unthread the screws that hold it set up, also it should come off. Once removed, stick it out of the way.
Locate the compressor. It really is at the back of the fridge on the bottom 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 then releasing it. Be sure to have adequate ventilation.
Once released, you need to 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 have been soldered so they are abrasive.
Cut refrigerators repair and suction tubes (leave about 20-30 mm from the end of the procedure tube).
Remove the compressor.
Remove the filter. You need to use a soldering torch (work with a neutral flame).
If the compressor motor burned out, you will need to clean the tubes. That 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 tip of the capillary right into a container to get the used solvent. It is possible to inject the solvent through the machine. After that, you will need to supply the system a nitrogen charge to clear out any residual solvent.
Step Two. Install the brand new Compressor
Now that you have removed the old compressor, the next thing is to install the brand new one. To achieve that:
Attach the new filter (be sure you have the correct one). You first have to solder a Schrader valve onto the excess connection (be 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 brand new compressor in to the correct position.
Connect all the tubes up to it, and weld them on.
You should then do a leak test by injecting nitrogen into them and using a sniffer tool. If you don`t have a sniffer tool, you can 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.
Work with a vacuum pump to eliminate 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 cooling system wires to the relay and the overload protector terminals.
Now you can 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 when so, your new compressor should now be successfully installed.
Step Three. Test That It Works
The final step would be to test your new compressor works. You can do that simply by turning your refrigerator back on and testing to see if it's working. If not, you need to contact a technician to have a look at it.