Replacing or changing the *compressor of a domestic refrigerator* is a technical process that must be done with care, as it involves handling electrical components and the refrigeration system, as well as specific tools and knowledge. Below, I explain the main steps to replace the compressor of a domestic refrigerator, but remember that if you are not experienced or comfortable with the process, it is highly recommended that you call a specialized refrigeration technician. Materials needed: 1. *New compressor* (compatible with your refrigerator model) 2. **Slotted screwdriver and Philips screwdriver** 3. *Tube sleeves* 4. *Pliers* (for removing clips or components) 5. *Saw or copper tube cutter* (for cutting tubing) 6. *Gloves and safety glasses* 7. *Vacuum hose* (for removing air and moisture from the system) 8. *Vacuum pump* (for creating a vacuum in the refrigeration system) 9. *Refrigerant* (for recharging the system, if necessary) Steps to replace the refrigerator compressor: #### 1. *Unplug the refrigerator* The first and most important step is to *unplug the refrigerator* from the outlet to avoid electric shock or other risks. #### 2. *Evacuate the refrigerant* Before working on the refrigeration system, you *need to evacuate the refrigerant* from the circuit, if the compressor still has gas. This should be done using suitable equipment to collect the gas so that it is not released into the environment, which can be dangerous and harmful. If you do not have the appropriate tools, such as a vacuum pump and a cylinder to collect the gas, it is essential to call a qualified technician. #### 3. *Remove the old compressor* **Locate the compressor**: It is usually located at the bottom of the refrigerator, in an accessible area on the side or back. **Disconnect the electrical wires**: The compressor has electrical connections. Use pliers or a wrench to safely disconnect the wires. Make sure the refrigerator is unplugged before touching the wires. **Disconnect the copper pipes**: The compressor is connected to copper pipes (usually with two or three pipes: one for the fluid inlet and two for the fluid outlet). Use a wrench to loosen the pipe connections. If necessary, cut the pipes with a suitable cutter. *Remove the brackets or screws* that secure the compressor to the base of the refrigerator. Compressors are usually held in place by screws or clips that need to be removed to remove the compressor. *Carefully remove the old compressor. #### 4. *Prepare the new compressor* The *new compressor* needs to be installed with the same specifications as the old one (cooling capacity, gas type, etc.). Check the connections and specifications of the new compressor, such as the types of electrical and pipe connections. #### 5. *Install the new compressor* *Secure the new compressor* in place, using the screws or clips to secure it properly. **Connect the copper tubing**: Use a wrench to secure the copper tubing to the compressor inlets and outlets, making sure the connections are tight but not overly tight. **Connect the electrical wires**: Reconnect the electrical wires to the compressor, as directed by the manufacturer. Remember that each wire has a specific connection (e.g., hot, neutral, ground), and you must follow the wire colors and manufacturer's wiring diagrams to ensure proper connection. #### 6. *Vacuum the System* *Vacuum* the refrigeration system to remove air and moisture from the circuit. This is essential before recharging the system with refrigerant. Connect a *vacuum pump* to the refrigeration system service valve and run the pump until the system is completely evacuated (typically to 500 microns or less). *Check the pressure* and vacuum to ensure the system is sealed and free of impurities. #### 7. *Recharge the System with Refrigerant* Once you have properly vacuumed the system, it is ready to be recharged with refrigerant. Check the specifications for your refrigerator to determine which type of refrigerant to use (e.g., R-134a or R-600a) and how much to use. Connect the refrigerant gas cylinder to the system service valve and recharge the system, monitoring the pressures with the pressure gauge to ensure that the gas level is adequate. #### 8. *Check Operation* After completing the compressor installation and gas recharge, *turn on the refrigerator* and check that the compressor is operating properly. *Observe the refrigeration cycle* to ensure that the refrigerator is cooling properly and that there are no leaks in the system.