The refrigerator is clicking: 7 reasons and what to do to fix the problem

Refrigerator clicks are one of the most common user complaints, which can mean either normal operation of the equipment or a serious malfunction. Unlike the constant hum of a compressor or vibration, sharp sounds often cause alarm: either this is a harbinger of a breakdown, or a feature of the model. In this article, we will figure out which clicks are considered normal and which require intervention - from simple adjustment to calling a technician.

It is important to distinguish one-time clicks (for example, when turning a compressor on/off) from cyclical repeating sounds (indicate problems with the relay or starting device). We will analyze the symptoms for refrigerators of different brands - from Samsung i LG to Indesit i Atlant, and also provide a checklist for self-diagnosis. If you hear suspicious sounds, do not rush to panic: in 60% of cases the problem is solved without repair.

1. Normal clicks: when there is no need to worry

Not all sounds made by the refrigerator indicate a malfunction. Modern models are equipped with several systems that can click during operation:

• 🔄 Compressor relay: when starting and stopping the motor, a characteristic click is heard. This is normal if the sound is sporadic and coincides with the cooling cycle (usually every 10-20 minutes).
• ❄️ No Frost system: In refrigerators with automatic defrost, the clicking sounds may come from the fan or defrost timer (for example, in models Bosch KGN39XL30 or Liebherr CNef 4315).
• 🔌 Thermostat: when the set temperature is reached, a shutdown click is heard. In mechanical thermostats, the sound is louder than in electronic ones.

To distinguish “healthy” clicks from problematic ones, pay attention to them rhythmicity and associated symptoms:

• ✅ Normal: sound is heard 1-2 times per hour, the refrigerator operates without interruption, the temperature in the chambers is stable.
• ❌ Requires checking: clicks are repeated every 5-10 seconds, the compressor does not start, or the freezer stops cooling.

If clicks are accompanied by flashing indicators on the control panel (for example, on Samsung RB37J5240SA or LG GA-B489YGQZ), this may indicate an error in the system. In this case, you should check the instructions for the model - often manufacturers encrypt faults with combinations of flashing and sounds.

2. Clicks without starting the compressor: problems with the relay

One of the most common causes of repeated clicks is a malfunction start-up relay. This unit is responsible for starting compressor, and if it fails, the refrigerator tries to turn on, but the motor does not start. Symptoms:

• 🔊 Clicks are repeated every 3-10 seconds.
• ❄️ The compressor does not hum, it rises in the chambers. temperature.
• 💡 On some models (for example, Indesit DF 4180 W), an error lights up F05 or E1.

Causes of relay failure:

1. Natural wear (service life - 5–7 years).
2. Voltage drops in the network (especially important for houses with old wiring).
3. Overheating due to poor ventilation of the back wall of the refrigerator.

Check whether errors are on the display|

Disconnect the refrigerator from the network for 10 minutes and turn it on again|

Listen: if the clicking continues and the compressor does not start, the relay is faulty|

Inspect the relay for melted contacts or a burning smell -->

If you suspect a problem with the relay, you can temporarily replace it with a known working one (for example, take it from another refrigerator). this:

1. Disconnect the refrigerator from the network.
2. Remove the protective cover from the compressor (usually secured with latches or screws).
3. Disconnect the relay terminals and install a new one, observing the polarity.

⚠️ Attention: Do not touch the contacts relay with bare hands - static electricity can damage electronic components. Use a tool with insulated handles.

3. Compressor malfunction: when clicking sounds are a symptom of a serious breakdown

If the relay is working, but the compressor does not start or works intermittently, there may be a problem. in the motor itself. Clicks in this case are attempts by the relay to “wake up” the compressor. Signs of a compressor malfunction:

• 🔧 Clicks are accompanied by humming, but the motor does not start.
• 🌡️ The temperature in the chambers rises, the products begin to deteriorate.
• 💥 Traces of oil or melting are visible on the compressor housing.

The most common reasons:

It is difficult to diagnose the compressor yourself - you will need a multimeter to check the winding resistance:

• Working winding resistance: 10–30 Ohm.
• Resistance of the starting winding: 20–40 Ohm.
• Resistance between the windings and case: ∞ (infinity).

How to check the compressor with a multimeter?

1. Disconnect the refrigerator from the network and discharge the capacitor (short-circuit it with a screwdriver with an insulated handle).

2. cover from the compressor terminals and disconnect the wires.

3. Measure the resistance between the terminals:

- C-S (common and starting windings) - should be the sum R working + R starting.

- C-R (common and working) - resistance of the working winding.

- S-R (starting and working) - resistance of the starting winding.

4. If at least one value is 0 or ∞, the compressor is faulty.

⚠️ Attention: If the compressor is overheated (the body is hot to the touch), do not try to turn it on again - this may cause to a short circuit. Let cool for 1-2 hours, then try to start again.

4. Problems with the thermostat or electronic board

In refrigerators with with a mechanical thermostat (for example, Birusa 101 or Stinol 102) clicks can come from the temperature regulator itself. If the thermostat contacts are burnt or oxidized, it will falsely operate, causing frequent switching on/off of the compressor.

How to check the thermostat:

1. Disconnect the refrigerator from the network.
2. Remove the thermostat knob and the protective casing.
3. Test the contacts with a multimeter in circuit test mode. When you rotate the thermostat knob, a click should be heard and a signal should appear on the multimeter screen.

In refrigerators. with electronic control (for example, Samsung RL-44 QEBS or LG GB-B459SLQZ) clicks may be associated with a malfunction control board. Symptoms:

• 📱 Errors appear on the display (for example, Er IF or E1).
• 🔄 The refrigerator spontaneously reboots.
• 🔊 Clicks are accompanied by squeaking or other extraneous sounds.

Independent repair of the board is only possible if you have experience working with a soldering iron and circuitry. In most cases, this is required. module replacement or firmware (for example, for refrigerators Liebeherr with a system SmartDevice).

5. Clicks from the fan or No Frost system

In refrigerators with the system No Frost (for example, Samsung RB-30 J3000WW or ATLANT XM 4625-101) clicks can come from:

• 🌀 Fan: if the blades touch ice or foreign objects.
• ⏱️ Defrost timer: clicks when switching between cooling and defrosting modes.
• 🔥 Evaporator heater: turns on for defrosting and may make sounds when heating/cooling.

How to fix problem:

1. If clicks are accompanied fan noise, defrost the refrigerator for 12–24 hours. Ice may be blocking the blades.
2. Check whether food or food has gotten into the vents packaging.
3. If sounds come from the defrost timer, try manually setting it to defrost mode (usually there is a button or lever inside the chamber).

In models with Full No Frost (for example LG GA-B489YGQZ), the fan runs constantly, and its failure may lead to a lack of cooling. after defrosting, the clicks do not disappear, the fan or timer may need to be replaced.

6. External reasons: plug, socket, voltage

Sometimes the clicks of the refrigerator are not associated with its internal components, but are caused by external factors:

• 🔌 Faulty socket: if the contacts are burnt, when turned on, it may a click can be heard.
• ⚡ Power surges: at low voltage (below 190 V), the compressor does not start and the relay clicks.
• 🔌 Poor contact of the plug: if the pins of the plug are oxidized, the refrigerator may turn off with a characteristic sound.

How to check:

1. Connect the refrigerator to another outlet (preferably with grounding).
2. Check the voltage in the network with a multimeter or a special tester. Norm: 220–230 V.
3. Inspect the plug and cable for damage, it needs to be replaced.

⚠️ Attention: If. voltage fluctuations often occur in your home, install stabilizer for the refrigerator. This will extend the life of the compressor and electronics. For models with inverter compressors (for example, Panasonic NR-BN30AW1a stabilizer is required!

7. When to call a technician: criteria for a serious breakdown

Not all faults can be repaired yourself. Contact a specialist if:

• 🔧 Clicks are accompanied by refrigerant leak (on the tubes) oil stains are visible).
• 🌡️ The temperature in the chambers does not drop below +10°C, despite the compressor running.
• 💥 Visible on the control board burnt elements or tracks.
• 🔊 The refrigerator makes clicks and does not turn on at all (no response to the buttons).

The cost of repairs depends on the type of breakdown:

When choosing a master, pay attention to:

• 📝 Availability guarantees for work (minimum 6 months).
• 🔧 Use original spare parts (ask for certificates).
• 📞 Reviews of the company (check at Yandex.Maps or 2GIS).

FAQ: Frequently asked questions about clicking noises from the refrigerator

❓ Why does the new refrigerator click more often than the old one?

Modern models are equipped with more sensitive thermostats and systems No Frostthat switch modes more often. In addition, inverter compressors (for example, in Samsung or LG) regulate the power smoothly, which may be accompanied by relay clicks. This is normal if the temperature in the chambers is stable.

❓ Is it possible to replace the compressor relay yourself?

Yes, if you have basic skills in working with tools The relay is attached to the compressor with latches or screws, and the wires are connected through. connectors. The main thing is not to confuse the polarity and make sure that the new relay matches the parameters (current strength and voltage). freezes? Indesit And Ariston a relay will do Danfoss 103N0022 or Embraco ER3800.

❓ Why does the refrigerator click and not freeze?

This is a typical symptom faulty relay or compressor. If the relay clicks, but the engine does not start, check:

1. Voltage in the socket (should be 220–230 V).
2. Resistance of the compressor windings (if it is 0 or ∞ - the motor is burned out).
3. Integrity of the starting capacitor (if it is swollen, it is needed replace).

If the refrigerator does not turn on at all, the problem may be in control board or thermostat.

❓ How to distinguish relay clicks from timer clicks No Frost?

Clicks relay usually coincide with attempts to start the compressor (every few seconds if it breaks down). The clicks are more rhythmic and repeat every 8-12 hours (depending on the model, listen to where the sound is coming from: No Frost timer more rhythmic and repeated every 8–12 hours (depending on the model). To pinpoint the source, listen to where the sound is coming from:

• If a click is heard bottom rear it’s a relay or a compressor.
• If there is sound from the top (behind the freezer) - this is a timer or a fan.

❓ Is it dangerous to ignore the clicks of the refrigerator?

If the clicks are single and the refrigerator is working normally - no, this is the normal operation of the units. more than 1 time per minute, the compressor does not start, or the temperature in the chambers rises - ignoring it will lead to:

• Product spoilage (due to lack of cooling).
• Overheating and fire hazard (if the relay or board is faulty).
• Complete failure of the refrigerator (for example, jamming of the compressor).

In such cases, it is better to carry out diagnostics within 1-2 days.