Indesit refrigerator compressor: how to check the serviceability yourself in 15 minutes

The compressor is the “heart” of the refrigerator Indesiton which not only cooling, but also the service life of the equipment depends. If your unit stops freezing, makes strange sounds, or works without interruptions, the problem with a 90% probability lies in this unit. However, do not rush to call a specialist: most compressor malfunctions can be diagnosed independentlyhaving only a multimeter and basic knowledge of electrical engineering at hand.

In this article we will look at 7 proven methods compressor checks Indesit —from visual inspection to testing the windings with a tester. You will learn how to distinguish false failure from criticalwhen you can still get by with minor repairs, and when it’s time to prepare to replace the unit. All methods are adapted for popular brand models: Indesit B18FNF, C132GNF, T18FNF and other series with compressors Embraco or Secop.

Important: if your refrigerator is under warranty, any interference with the design voids the manufacturer's obligations. In this case, it is better to immediately contact the service center Indesit.

1. Signs of a compressor malfunction: when to sound the alarm

The first symptoms of compressor problems are often ignored, chalking them up to “temporary failures.” Meanwhile, even minor deviations in work can signal o imminent failure of the unit. Pay attention to the following “bells”:

• 🔊 Constant hum without pauses (the compressor works “wear and tear” and does not turn off)
• ❄️ Weak cooling with the motor on (in the freezer +5°C instead -18°C)
• ⚡ Frequent protection operations (the refrigerator suddenly turns off and turns on again)
• 💥 Clicks and impacts during startup (problems with the starting relay are possible)
• 🔥 Overheating of the housing of the compressor (hot even after 10 minutes of operation)

Particularly dangerous short operating cycles are to blame (turns on for 1-2 minutes and turns off). This is a sign that the compressor cannot create the required pressure in the system. In 60% of cases, turn-to-turn breakdown of the windings or jamming of the piston group.

⚠️ Attention: if refrigerator Indesit with system No Frost stopped cooling, first check evaporator fan i defrost timer. Their breakdowns give similar symptoms, but repairs are cheaper.

2. Preparation for diagnostics: what you will need

Before starting the test, prepare the tools and ensure safety:

• 🔧 Multimeter (preferably digital, with a mode for checking resistance up to 2000 Ohms)
• 🔌 Phillips screwdriver (for removing the rear panels)
• 📏 Calipers or ruler (for measuring gaps)
• 🧤 Rubber gloves (the compressor is energized at 220V!)
• 📝 Notepad (for recording the tester readings)

Also useful starting relay from a similar refrigerator (for the “changeover” test) and pressure gauge (if you check the pressure in the system). For models Indesit with inverter compressors (Indesit EWT 267 and newer) you will additionally need oscilloscope - without it it is impossible to accurately diagnose such components.

Disconnect the refrigerator from the mains|Remove the rear protective panel|Inspect the compressor for damage|Prepare a multimeter and tools|Write down the model of the refrigerator (on the label on the back)-->

Important! Carry out all work at room temperature (18–25°C). If the compressor was turned on, let it cool for 1-2 hours - the heated windings will show incorrect resistance.

3. Visual inspection: what can be seen with the naked eye

Start with an external inspection of the compressor. It is located at the bottom of the refrigerator Indesit, under the protective cover. Remove the panel and pay attention to the following details:

1. Integrity of the housing. Cracks, dents or traces of oil around the compressor indicate depressurization of the system. In this case, repairs are only possible at a service center with a full refill of freon.
2. Condition of the terminals. Oxidized, blackened or melted contacts indicate overheating of the windings or a short circuit.
3. Suction and discharge pipes. If one of them is frozen (covered with frost) and the other is cold, it is possible refrigerant leakage or clogging of the capillary tube.

Pay attention to starting relay (small box attached to the compressor). If it is cracked or smells burning, the problem may be with it and not with the motor itself. Relays for Indesit are inexpensive (from 500 rubles) and are replaced in 10 minutes.

How to distinguish a compressor from a condenser?

A compressor is a black “barrel” with tubes and terminals located at the bottom of the refrigerator. The condenser (grid) is located at the back or bottom and serves to cool the freon. Beginners confuse them, but the functions of these nodes are completely different!

4. Checking the compressor with a multimeter: step-by-step instructions

This is the most reliable diagnostic method. We will check winding resistance and circuit integrity. On the compressor Indesit usually 3 outputs:

• C (Common) - common terminal
• S (Start) - starting winding
• R (Run) - working winding

Step 1. Disconnect the refrigerator from the mains and discharge the capacitor (if any) by shorting its terminals with a screwdriver with an insulated handle.

Step 2. Remove the starting relay by disconnecting it from the compressor terminals. Draw or photograph the connection diagram!

Step 3. Switch the multimeter to resistance measurement mode (2000 Ohms) and take measurements:

If at least one of the parameters does not correspond to the norm, the compressor faulty. Resistance close to zero is especially critical - this is a sign of a short circuit that can damage the electronics of the refrigerator.

5. Checking operation without instruments

If you don’t have a multimeter at hand, you can assess the condition of the compressor using “old-fashioned” methods. They are less accurate, but will help identify obvious breakdowns:

• 🔊 Sound test. Turn on the refrigerator and listen:
  • Loud hum with vibration - possible bearing wear.
  • Clicks without starting - faulty starter relay.
  • Silence - break of windings or lack of power.
• ⏱️ Operating time test. Note how long the compressor works before shutting down:
  • 1–2 minutes - it works thermal protection (overheating).
  • More than 30 minutes without stopping - freon leak or system blockage.
• 🌡️ Heating test. Touch the compressor housing after 10 minutes of operation:
  • Hot (more than 60°C) - problems with the windings or overload.
  • Cold - does not work at all.

For models Indesit with electronic control (Indesit EF18 and similar) these methods are less effective - the control unit can mask malfunctions. In this case, you cannot do without diagnostics with a multimeter.

⚠️ Attention: if the compressor starts but immediately turns off (after 1-3 seconds), never try to “restart” it repeatedly. This may lead to winding burnout cause of current surges. Maximum - 2-3 attempts with an interval of 5 minutes.

6. Checking the pressure in the system (for experienced ones)

This method requires special equipment - gauge manifold i hoses for connection. It will help identify:

• Freon leakage
• Clogged capillary tube
• Valve malfunction compressor

Procedure:

1. Connect the pressure gauge to service port (usually located on the discharge tube, closed with a cap).
2. Turn on the refrigerator and detect pressure:
   • At suction (blue scale): should be 0.2–0.8 bar.
   • At discharge (red scale): 10–15 bar (depending on the model).

If the discharge pressure is below 6 bar, the compressor does not create the required compression (wear of the piston group).

If the suction pressure is close to 0 — system blockage or freon leak.

For refrigerators Indesit with freon R600a (isobutane) normal discharge pressure is lower than for R134a —about 8–12 bar. For exact values, see the technical documentation for the model.

7. When the compressor can still be saved: temporary measures

If diagnostics reveal non-critical problems, try the following ways to extend the life of the compressor:

• 🔄 Cleaning the condenser. Dust on the grill impairs heat transfer, causing the compressor to wear out. Vacuum it or wash it with soapy water.
• ⚡ Replacing the starting relay. It is inexpensive, but in 30% of cases it solves the problem of “clicking” without starting.
• 🧊 Defrosting for 24 hours. Sometimes ice plugs in the capillary tube block the circulation of freon. Complete defrosting may help.
• 🔧 Checking the voltage. Compressors Indesit are sensitive to voltage drops below 200V. Use a stabilizer.

If the compressor is already “dying” (low compression, interturn short circuit), these measures will give a temporary effect. In the long term, you will need replacement of the compressor or rewinding of the windings (which is often more expensive than a new unit).

⚠️ Attention: do not use “folk” methods like hitting the compressor with a hammer or pouring oil into the system. For modern refrigerators Indesit with hermetic compressors, this is a sure way to finally finish off the unit.

FAQ: Frequently asked questions about compressors Indesit

❓ How can I find out the compressor model in my Indesit refrigerator?

The compressor model is indicated on its body (for example, Embraco EGX 90HLC or Secop DK100L). It can also be found by the serial number of the refrigerator on the website Indesit or in the documentation.

❓ How much does a new compressor cost for Indesit?

The price depends on the model:

• For refrigerators with a capacity of up to 200 l: 4 000–7,000 rub.
• For Side-by-Side and multi-chamber: 8,000–15,000 rub.
• Inverter compressors: from 12,000 rub.

Plus payment for the work of the master (2,000–5 000 rub.).

❓ Is it possible to replace the compressor yourself?

Technically yes, but you will need:

• Vacuum pump (for pumping out the system)
• Cylinder with freon (type depends on the model)
• Torch for soldering tubes

Without experience, there is a high risk of refilling or moisture ingress into the system, which will lead to repeated breakdown.

❓ Why does the compressor heat up, but the refrigerator does not freeze?

The reasons may be the following:

1. Freon leak (refill required).
2. Clogging filter-drier or capillary tube.
3. Malfunction of the compressor valve (pressure is not created).
4. Problems with the thermostat (does not give a command to cool).

Start with a check pressure in the system and winding integrity.

❓ How to extend the life of the compressor?

Follow these rules:

• Do not place the refrigerator next to the stove or battery.
• Defrost regularly (even models with No Frost).
• Do not overload the freezer with food (air circulation deteriorates).
• Use a voltage stabilizer.

Average service life compressor Indesit —10–15 years with proper operation.