The refrigerator does not turn on, but the light inside is on: reasons and what to do

Have you opened the refrigerator door, and the light is on inside, but the motor does not start? This situation occurs more often than it seems. In most cases, the problem is solved without calling a technician, but sometimes professional diagnostics are required. In this article we will look at 7 main reasonswhy the refrigerator does not turn on when the light is on, and what to do about it.

The light in the chamber is a separate electrical circuit, which is not always associated with the operation of the compressor. Therefore, its combustion does not guarantee the serviceability of the main components. We will consider both simple problems (for example, settings failure) and serious breakdowns (failure of a relay or thermostat). And at the end of the article - FAQ with answers to frequently asked questions.

1. Problems with the power supply: plug, socket, surge protector

The first thing you need to check is supply of electricity to the refrigerator. Even if the light is on, this does not mean that the required voltage is supplied to the compressor. Start with the basic steps:

• 🔌 Remove the plug from the socket and inspect it for melting or cracks.
• 🔄 Try connecting the refrigerator to another outlet (preferably on a separate line).
• 🔋 If used surge protector or extension cord, connect the device directly.

Pay special attention automatic machines in the panel. Sometimes they work partially, turning off only one phase (for example, to a compressor), while the second (for light) continues to work. Check whether the plugs have been knocked out.

If after checking the power supply the refrigerator still does not turn on, move on to the next one point.

2. Malfunction of the thermostat (thermostat)

The thermostat is temperature sensorthat sends a signal to the compressor to turn on. If it breaks, the motor will not receive a command to start, although the light will work. Signs of malfunction:

• ❄️ The refrigerator does not cool, but the light inside is on.
• 🔄 The compressor does not turn on even at the maximum temperature setting.
• 🔊 Sometimes the relay clicks are heard, but the motor does not starts.

You can check the thermostat yourself:

1. Disconnect the refrigerator from the network.
2. Remove the protective cover of the thermostat (usually it is located inside the chamber).
3. Short the two wires going to the thermostat together (take a photo first their location!).
4. Turn on the refrigerator. If the compressor starts working, the thermostat is faulty.

In some models (for example, Indesit or Samsung with electronic control) the thermostat is built into the board. In this case, diagnostics will be required at a service center.

3. Failure of the start-up relay

The relay is switchthat starts the compressor. If it fails, the motor will not be able to start, although electricity is supplied. Signs:

• 🔊 Clicks are heard, but the compressor does not start.
• 🔥 The relay gets hot or smells like burning.
• 🔄 The refrigerator may turn on briefly and immediately turn off.

You can check the relay as follows:

1. Disconnect the refrigerator from the network.
2. Remove the relay cover (usually it is located next to the compressor).
3. Check the contacts for melting or carbon deposits.
4. Test the relay with a multimeter (if you have skills in working with the device).

In most cases, the relay cannot be repaired - it needs to be replaced. For models Atlant or Beko universal relays like RP4-1 or DANFOSS 103N0020.

4. Compressor failure

If all the previous elements are working, but the refrigerator does not turn on, the problem may be in compressor. This is the most serious breakdown, since replacing the motor is expensive. Signs:

• 🔇 Complete silence - there are not even relay clicks.
• 🔥 The compressor gets very hot when trying to start.
• 💥 Sometimes a humming sound is heard, but the motor does not starts.

You can check the compressor like this:

1. Disconnect the refrigerator from the mains.
2. Remove the back cover to gain access to the motor.
3. Ring the compressor windings with a multimeter (the resistance between the contacts should be within 20-50 Ohms).
4. If there is no resistance or is too high, the compressor is faulty.

In some cases, the compressor can be “reanimated” by changing the oil or eliminating the jam. But more often, a complete replacement of the motor is required, which is economically feasible only for expensive models (for example, Liebherr or Bosch).

What to do if the compressor hums but does not start?

This is a sign of an interturn short circuit or jamming of the piston. Try lightly tapping the motor body with a wooden handle screwdrivers - sometimes this helps to “move” jammed parts. But this is a temporary solution; replacement will be required in the future.

5. Failure of the electronic control module

In modern refrigerators (for example, Samsung No Frost or LG Inverter) is responsible for the operation. data-i="119">. If it fails, the compressor may not receive signals to turn on. Signs: electronic board. If it fails, the compressor may not receive signals to turn on. Signs:

• 📱 The display does not respond to pressing or shows errors (for example, E1, F2).
• 🔄 The refrigerator may turn on randomly and turn off.
• 🔊 Sometimes clicks are heard, but the motor does not start.

It is difficult to repair the board yourself - special skills and equipment are required. But you can try resetting the settings:

1. Unplug the refrigerator for 10-15 minutes.
2. Turn it back on and try to start it.
3. If there is a button Reset press it.

If the reset does not help, the board needs to be taken to service. In some cases, it can be reflashed, but more often a replacement is required.

Disconnect the refrigerator from the power supply. networks|Inspect the plug and socket|Check the temperature settings|Listen for relay clicks|Write down the refrigerator model (located on the sticker on the back)-->

6. Capillary tube clogged or freon leak

If the refrigerator does not turn on, but the light is on, the problem may lie in cooling system. Two main malfunctions:

1. Clogged capillary tube - prevents the circulation of freon.
2. Refrigerant leak - freon flows out through microcracks.

Symptoms:

• ❄️ The refrigerator does not cool, but the compressor works (or tries to start).
• 🔥 The motor gets very hot and turns off after a few seconds.
• 💧 Oily stains may appear on the back wall (if there is a leak).

These breakdowns cannot be repaired on your own - you need vacuuming the systemfilling with freon and checking for leaks. On average, repairs cost 3-5 thousand rubles, but for older models it may be unprofitable.

7. Door switch and its effect on the operation of the refrigerator

In some models (for example, Whirlpool or Electrolux) door switch can block the operation of the compressor if the door is not tightly closed. This is done to save energy. But if the switch is broken, it can give false signals.

It's easy to check it:

1. Open the door and press the switch button manually.
2. If the light does not go out or come on, the switch is faulty.
3. Try to press the door lightly - sometimes it helps.

Replacing a switch is inexpensive (about 500-1000 rubles), but if the problem is in the hinges or seal, they will need to be adjusted or replaced.

In 80% of cases the problem lies in the thermostat or relay - these parts are easy to replace if you have minimal skills in working with tools.

⚠️ Attention: If the refrigerator emits a smell of burning or smoke, immediately unplug it! This is a sign of a short circuit or overheating of the compressor windings. Further operation is dangerous!

What to do if the refrigerator does not turn on: step by step. algorithm

To avoid wasting time, follow these instructions:

1. Check the power supply — socket, plug, machines.
2. Make sure that the door is closed tightly —sometimes the sensor blocks the start.
3. Listen to the refrigerator:
   • Clicks - a problem with the relay or thermostat.
   • Humming - compressor malfunction.
   • Silence - board failure or open circuit.

Try resetting the settings — turn off the refrigerator for 15 minutes.

If all else fails —call a technician.

Do not try to disassemble the compressor or board without experience - this can lead to more serious problems breakdowns!

⚠️ Attention: In refrigerators with a system No Frost (for example, Samsung RL-34), the malfunction may lie in the defrost. If the fan does not spin, and there is ice on the back wall, this is a sign of a breakdown of the heating element or defrosting timer.

FAQ: Frequently asked questions about a non-working refrigerator

The refrigerator does not turn on, but the freezer is working. What is the problem?

Most likely, the capillary tube in the cooling circuit is faulty or clogged. compressors (for example, refrigerator thermostat or the capillary tube in the cooling circuit is clogged. In models with two compressors (e.g. Bosch KAN92VI30), the problem may be in a separate motor for the refrigeration compartment.

After the lights turned off, the refrigerator stopped turning on. What should I do?

Probably burned out start-up protection relay or there is a failure in the electronic module. Try turning off the refrigerator for 10 minutes, then turning it on again. If it doesn’t help, check the relay (see section 3).

The refrigerator clicks, but does not start?

Most likely the problem is relay. If the compressor is faulty, there are usually no clicks - only a hum or silence. Try replacing the relay (it is inexpensive).

Can I fill the freon myself?

No, this dangerous procedurerequires special equipment (vacuum pump, pressure gauges) and certification. Incorrect filling can lead to an explosion or freon poisoning.

How much does the repair cost if it does not turn on? compressor?

The cost depends on the model:

• Replacement of the relay - 1,000–2,500 ₽.
• Replacement of the thermostat - 1,500–3,000 ₽.
• Repair fees - 3,000–8,000 ₽.
• Replacement of the compressor - 5,000–12,000 ₽.

For refrigerators older than 10 years, repairs may be unprofitable.