How to properly remove the compressor from the refrigerator at home: expert advice

Dismantling a refrigerator compressor is a task faced during a major overhaul, replacement with a new unit or recycling of equipment. Many owners are afraid to take on this work themselves for fear of damaging the freon system or getting injured. However, with the right approach and compliance safety precautions you can remove the compressor even without special education. The main thing is to understand the structure of the refrigeration circuit and follow a clear algorithm.

In this article we will analyze the entire process from A to Z: from preparing tools to checking the tightness of the system after dismantling. We will pay special attention nuances for inverter compressors (installed in models LG, Samsung after 2018), as well as classic piston motors that are still found in refrigerators Atlant, Biryusa or Stinol. If your unit makes uncharacteristic sounds or has stopped freezing, our guide will help you determine whether this is due to a compressor failure and how to properly remove it for diagnostics.

Preparation for work: tools and precautions

Before you begin dismantling, make sure that you have everything you need. Lack of even one tool may lead to a delay in the process or damage to parts. Here is the basic set:

• 🔧 A set of wrenches (8, 10 and 12 mm wrenches are required)
• 🔨 Phillips and flathead screwdrivers (for removing protective panels)
• 🧲 Magnetic holder or tweezers (for small nuts and washers)
• 🛠️ Pliers and side cutters (for working with tubes and terminals)
• 🧴 Silicone grease (for processing rubber seals)
• 📸 Camera or smartphone (to record the location of parts)

Pay special attention protective equipment. The compressor is under pressure, and freon or oil may remain in the system. Use:

• 👓 Safety glasses (from possible oil splashes)
• 🧤 Rubber gloves (freon irritates the skin)
• 😷 Respirator or mask (when working with a soldering iron lamp)

⚠️ Attention: If the refrigerator ran on freon R600a (isobutane), remember that this gas explosive at a concentration in air of 1.3%. Work in a well-ventilated area and avoid open flames!

Before starting work, be sure to:

1. Disconnect the refrigerator from the mains and wait until it completely defrosts (at least 12 hours).
2. Move the equipment away from the wall, providing free access to the rear panel.
3. Prepare a container for draining the oil (it may leak out when removing the tubes).

Fault diagnosis: when to really remove the compressor

Cooling problems are not always associated with compressor failure. Before dismantling the unit, rule out other possible causes:

If you suspect a compressor malfunction, carry out a preliminary check:

1. Test the motor windings with a multimeter (the resistance between the terminals should be in the range of 15–40 Ohms).
2. Check the integrity of the starting relay (there should be no extraneous sounds when shaking).
3. Evaluate the temperature of the compressor housing: if it is cold when the engine is running, freon may leak.

⚠️ Attention: In models with inverter compressors (for example, LG GA-B489 or Samsung RB30J3000) standard dialing may give false results. Accurate diagnostics require specialized equipment for testing electronic boards.

Step-by-step instructions: how to remove the compressor from the refrigerator

When you are convinced that the problem is in the compressor, proceed to dismantling. We will break the process into steps to minimize the risk of errors.

Step 1: Removing the rear panel and accessing the compressor

First you need to provide access to the engine compartment:

1. Unscrew the screws securing the rear protective panel (usually they are located around the perimeter).
2. Carefully remove the panel without damaging the thermal insulation layer.
3. If the compressor is closed with an additional cover (as in models Bosch or Liebherr), remove it by snapping the latches.

Now you will see the compressor itself - a black metal cylinder with tubes and a terminal block. Do not touch to the tubes with bare hands: they may be sharp or have residual temperature.

Step 2: Disconnecting electrical connections

Before unscrewing the compressor, disconnect all electrical contacts:

1. Take a photo of the location of the wires on the terminal block (this will help with reassembly).
2. Disconnect the start relay chip (usually it is secured with a latch).
3. If the wires are soldered, carefully cut them with side cutters, leaving a reserve for future soldering.

In models with inverter control (for example, Hitachi R-BG410) terminal block can be integrated into the board. In this case:

• Disconnect the board's power connector (usually it is marked as CN1 or POWER).
• Insulate the exposed contacts with heat-shrink tube.

Stage 3: Cutting the tubes and draining the oil

This is the most critical stage. The compressor tubes are filled with freon and oil, so proceed carefully:

1. Wear safety glasses and gloves.
2. Use side cutters suction tube (more thick) at a distance of 2–3 cm from the compressor.
3. Do the same with discharge tube. tube (thin). Be prepared for hissing - this is residual freon coming out.
4. Put a container under the compressor and tilt it to drain the oil (on average 150–300 ml flows out).

If freon comes out under pressure, let it bleed naturally (do not point the tube towards yourself!) In models with R134a or R600a The pressure usually does not exceed 2-3 atm, but it is better not to risk it.

Secure the compressor so that it does not fall after cutting the tubes|

Place a rag to absorb the oil|

Wear safety glasses and gloves|

Prepare a container for draining the oil-->

Step 4: Unscrewing the fastenings and removing the compressor

Now all that remains is to remove the compressor from the frame:

1. Unscrew the fastening nuts (usually there are 3 or 4, 10–12 mm in size).
2. Carefully lift the compressor, rocking it from side to side (rubber shock absorbers may stick).
3. Remove the unit and place it on a flat surface, tubes up (to avoid oil leakage).

If the compressor is “stuck” to the frame, do not try to tear it off. Treat the joints WD-40 or with a similar lubricant and wait 10-15 minutes.

Dismantling features for different brands of refrigerators

The design of the compressor compartment may vary significantly depending on the manufacturer. Let's consider the key nuances for popular brands.

Refrigerators Atlant and Stinol

In these models, the compressor is often mounted on spring shock absorbers, which rust over time. When dismantling:

• Pre-treat the fasteners with a rust converter.
• Be careful with the tubes - they are thinner than standard ones and can burst when bitten. Atlantakh They are thinner than standard ones and can burst when bitten.
• After removing the compressor, check the integrity of capillary tube (it goes along the condenser).

Refrigerators LG i Samsung with inverter compressors

Inverter models (LG GA-B489, Samsung RB37J5000) have an additional control board, which is attached to the compressor housing. When dismantling:

• First, disconnect the board by unscrewing 2-3 screws on its case.
• Do not pull the wires - they can be soldered to the compressor contacts.
• After removing the compressor, the board should be stored in an antistatic bag.

Refrigerators Indesit i Biryusa

These units often contain combined fastening system: two nuts on top and a latch on the bottom. When removing:

• First unscrew the nuts, then press the latch with a screwdriver.
• In models Indesit after 2015, the compressor may be closed with a plastic casing - it must be removed, prying the latches.
• Check the condition protection relay (in these brands it often fails).

⚠️ Attention: In refrigerators Beko i Vestfrost the compressor can be integrated with the condenser into a single unit. In this case, for dismantling, you will also need to disconnect the condenser tubes (they cannot be cut through - only desoldered!).

What to do after removing the compressor: checking and preparing for replacement

When the compressor is removed, it needs to be inspected and prepared for further actions (repair, replacement or disposal). Here's what you need to do:

1. Visual inspection

Assess the condition of the body and pipes:

• 🔍 Presence of oil stains on the body (indicates oil seal wear).
• 🔍 Corrosion on the pipes (can lead to freon leakage).
• 🔍 Dents or cracks (critical defect, compressor must be replaced).

2. Checking the windings with a multimeter

If you are planning to repair a compressor, ring its windings:

1. Set the multimeter to resistance measurement mode (200 Ohms).
2. Measure the resistance between the terminals:
   • C-S (start winding) - should be 20-30 Ohms.
   • C-R (working winding) - should be 10-15 Ohms.
   • S-R - the sum of the two previous values.

If the resistance is 0 or ∞ - the winding is shorted or broken.

3. Preparing to install a new compressor

If the old compressor cannot be repaired, before installing a new one:

• Flush the system nitrogen or special solvent to remove residual oil and moisture.
• Replace filter drier (it is always installed new when replacing the compressor).
• Check integrity capillary tube —it often becomes clogged when the compressor breaks down.

How to flush the system without special equipment?

If you do not have a nitrogen cylinder, you can use R141b refrigerant (sold in cleaning cans). Connect the cylinder through the adapter to the service connection and blow out the system for 10–15 minutes. After flushing, be sure to vacuum the system for at least 30 minutes!

Typical mistakes during dismantling and how to avoid them

Even experienced craftsmen sometimes make mistakes that lead to additional costs or breakdowns. Here are the most common of them:

Another common mistake is improper transportation of the compressor. If you are taking it to a service center:

• Pack it in a box with shock-absorbing material (foam, bubble wrap).
• Close the tubes with plugs or electrical tape to prevent dirt from getting in.
• Do not place the compressor horizontally - only vertically, with the tubes up.

When is it better to turn to a professional

Although dismantling the compressor is quite possible at home, there are situations when it is better to entrust the work to a specialist:

• 🔧 If the refrigerator is under warranty (independent repairs will void the warranty).
• 🔧 If the compressor is integrated with an electronic control unit (as in Liebert or Electrolux with a system Twin Cooling).
• 🔧 If required full refill with freon (vacuum equipment is needed).
• 🔧 If you find a freon leak in foamed parts refrigerator (disassembly of the case is required).

The cost of professional dismantling of the compressor in service centers varies from 1,500 to 4,000 rubles (depending on the complexity). However, if you plan replacement yourselfthe savings can be up to 70% of the total repair cost.

Before making a decision, evaluate:

• Availability of special tools (blowtorch, vacuum pump, manometric manifold).
• Work experience with refrigerants (freon is toxic and requires careful handling).
• The complexity of the design of your refrigerator (for example, in Side-by-Side models, access to the compressor is difficult).

⚠️ Attention: In some regions disposal of compressors with freon is regulated by law. For example, in Moscow and St. Petersburg, a fine of up to 2,000 rubles is provided for incorrect disposal. Check the rules with the local branch of Rosprirodnadzor.

FAQ: Frequently asked questions about dismantling the compressor

Is it possible to remove the compressor without bleeding the freon?

Technically it is possible, but it is highly not recommended. Freon under pressure can tear the tubes out of your hands, and its release into the air is harmful to health. refrigerant, use recuperation equipment (rental cost - from 1,000 rubles per day).

How to understand that the compressor has burned out and not just a clogged system?

When the capillary tube is clogged, the compressor works, but does not cool (hot housing, but cold condenser tubes). If the compressor does not start or turns off after 1-2 seconds, that is the problem. Also, a characteristic burnt smell from the terminal box indicates a burnt out motor.

What to do if a lot of oil leaked out when cutting the tubes?

This is normal - the compressor contains 200-400 ml of oil. The main thing is that it does not get into the system. After replacing the compressor, add the same amount of oil to the new unit (see the brand of oil on the compressor label, usually it is Suniso 3GS or Emkarate RL32H).

Is it possible to install a compressor from another refrigerator model?

Theoretically, yes, but you need to consider:

• Compatibility by type of freon (for example, R134a and R600a are not interchangeable).
• Compressor power (must correspond to the volume of the refrigeration chamber).
• The location of the tubes (they must fit the existing wiring).

It is better to select a compressor according to the catalog number (written on the label of the old unit).

How much does a new compressor cost and where to buy it?

The price depends on models:

• For refrigerators Atlant/Stinol: 3,500–5,000 rubles.
• For LG/Samsung s inverter: 8,000–12,000 rubles.
• For premium brands (Liebert, Miele): 15,000–25,000 rubles.

You can buy in specialized stores (220 Volt, Technical report) or on AliExpress (but be careful with fakes!). Always check compatibility using the catalog number!