Does the refrigerator not start? 12 reasons and what to do in each case

Have you opened the refrigerator door, and there is warmth and silence inside? Or did the unit suddenly stop humming, although there is light in the house? A situation when the refrigerator does not turn on always causes panic: food can spoil in a few hours, and calling a technician is expensive. But in 60% of cases, the problem can be solved on your own - without tools and special skills.

In this article we will analyze all the possible reasons why the refrigerator refuses to start: from the banal power outages to serious breakdowns compressor or electronic control unit. You will learn how to check each unit at home, what sounds and signals should alert you, and when exactly it is time to call a specialist. We will pay special attention to models with No Frost and inverter compressors - their diagnostics have nuances.

Important: if the refrigerator turns on for 1-2 seconds and immediately turns off, this is a separate case - it requires urgent diagnosis of overheating protection. Read about this in the section about start-up protection relay.

1. Checking the power: why the refrigerator may be de-energized

The first thing to do is to make sure that the equipment is receiving electricity at all. This seems obvious, but in 20% of cases the problem lies here. Start with a visual inspection:

• 🔌 Socket: check to see if the plug has fallen out of the socket (especially if the refrigerator was on vibration). Try plugging another device into this socket - for example, a table lamp.
• ⚡ Machine in the panel: If the refrigerator is connected via a separate line, check to see if the circuit breaker has tripped. Sometimes it turns off due to a power surge.
• 🔄 Extension cord/surge filter: if the refrigerator is connected via an extension cord, try plugging it directly into the outlet. Cheap filters often burn out from the load.

If the outlet is okay, but the refrigerator is silent, check power cord. Inspect it for:

• 🐭 Traces of chewing (mice and rats often chew through wires).
• 🔥 Melted areas (especially around the plug).
• 💔 Fractures or jams insulation.

If you see damage do not turn on the refrigerator is dangerous! Replace the cord with a new one with the same power (indicated in the device passport). For models Samsung RL60 or LG GA-B489 a standard 10A cable is suitable, and for powerful Side-by-Side (for example Bosch KAN92VI30R) you need a 16A cord.

⚠️ Attention: If the refrigerator is connected via voltage stabilizer, check its indicators. Some models (for example Resanta ACH-5000/1-C) turn off the load during critical power surges. In this case, you need to reset the protection with the button Reset on the stabilizer body.

2. Thermostat failure: how to check and replace

The thermostat (or thermostat) is the “brain” that turns on the compressor when the temperature rises. If it is broken, the refrigerator will be silent or work chaotically. Signs of malfunction:

• 🧊 The refrigerator does not turn on, but the light inside is on.
• 🔄 The compressor starts for 5-10 seconds and immediately turns off.
• ❄️ There is ice in the freezer, but mostly heat compartment (or vice versa).

To check the thermostat, do the following:

1. Unplug the refrigerator.
2. Remove the thermostat protective cover (usually it is located inside the chamber, next to the lamp).
3. Find two wires going to thermostat, and short-circuit them together (use a screwdriver with an insulated handle!).

If after this the compressor starts working, the thermostat is faulty and requires replacement. For models Atlant or Indesit a universal thermostat is suitable K59-L1955 (price ~800 rub.). In refrigerators Samsung with the system No Frost It is often used DA61-00568A.

⚠️ Attention: In refrigerators with electronic control (for example, LG DoorCooling+ or Bosch VitaFresh) instead of a mechanical thermostat, temperature sensoris used. Checking it requires a multimeter - you need to measure the resistance at different temperatures. If you are not sure, it is better to call a specialist.

3. Compressor malfunction: how to recognize and what to do

The compressor is the “heart” of the refrigerator. If it burns out or jams, the equipment will not start. Signs of a compressor failure:

• 🔇 Refrigerator does not hum at all (even when plugged in).
• 💥 Clicks of the start-up relay are heard, but the motor does not starts.
• 🔥 The compressor housing is hot (normally it should be warm, but not scalding).

For diagnostics:

1. Unplug the refrigerator and move it away from the wall.
2. Remove the back cover (in most models it fastened with latches or screws).
3. Inspect the compressor - usually it is a black “barrel” at the bottom.
4. Check whether there are oil wires drips or melted wires.

If the compressor is apparently intact, but does not start, try ring its windings with a multimeter:

If the resistance is different from the norm or the multimeter shows 0 (short circuit), the compressor is faulty. In this case:

• 🔧 For refrigerators Stinol, Biryusa or Nord you can find a used compressor (~3-5 thousand rubles) and replace it yourself.
• 💰 For premium models (Liebherr, Miele) it is cheaper to buy a new refrigerator - repairs will cost 50–70% of its cost.

How to check a compressor without multimeter?

If you don’t have a multimeter, you can try to start the compressor directly, bypassing the relay. To do this:

1. Remove the start-up relay (it is attached to the compressor).

2. Find the contacts C (common), R (working winding) and S (starting).

3. Connect the wires from the network: phase to R, zero to C, and to S supply the phase for a short time (you can use a button).

If the compressor does not start, it burns out.

4. Problems with the start-protection relay: why the refrigerator clicks but does not start

If the refrigerator buzzes for 1-2 seconds, then a click is heard and it turns off the start-protection relay is to blame. This unit is responsible for starting the compressor and protecting it from overheating. Reasons for failure:

• 🔥 Overheating due to poor ventilation (dust, close proximity to the wall).
• 💥 Mechanical wear contacts (typical for old models).
• ⚡ Power surgesthat “fried” the relay coil.

How to check the relay:

1. Turn off the refrigerator and remove the relay (it is attached to the compressor and looks like a small box with wires).
2. Shake it - if something rattles inside, this is a sign of a breakdown.
3. Test the contacts with a multimeter 3–4 (normal resistance: 10–50 Ohms).

If the relay is faulty, it needs to be replaced. For most refrigerators (Ariston, Veko, Zanussi), a universal relay RBM-1 or DANFOSS 103N0019is suitable. Cost - from 500 to 1500 rubles. Replacement takes 10 minutes:

⚠️ Attention: B refrigerators with inverter compressors (for example, Samsung Digital Inverter or LG Smart Inverter) instead of a conventional relay is used electronic control unit. Its diagnosis and replacement require special equipment - do not try to repair it yourself!

5. Failures in the electronic control unit

Modern refrigerators (Bosch Serie 6, Electrolux NutriFresh, Samsung Family Hub) are equipped with electronic boards that control all processes. If the control unit is burned out or the firmware has crashed, the refrigerator may:

• 🖥️ Not respond to button presses.
• 🔄 Turn on and turn off immediately.
• 📛 Show errors on the display (for example, E1, F5 or dH).

Causes of failure of the electronic unit:

• ⚡ Voltage surges (even if a stabilizer is used).
• 💧 Moisture ingress (for example, during defrosting).
• 🐛 Factory defective or worn-out capacitors.

What you can do yourself:

1. Reset settings - turn off the refrigerator for 10 minutes, then turn it on again. Sometimes this helps if the firmware fails.
2. Check the fuse on the board (if it is burned out, replace it with similar).
3. Inspect the board for blackened elements or swollen capacitors.

If an error appears on the display, decipher it according to the instructions for the model. For example:

• E1 V Samsung - problem with the temperature sensor.
• F5 v LG - fan malfunction No Frost.
• dH v Bosch - high temperature in the refrigerator compartment.

To repair the electronic unit, it is better to contact a service center. Soldering the board yourself without experience can lead to short circuit or complete failure of the equipment. The cost of repair is from 2 to 10. thousand rubles, depending on the model.

6. Clogged capillary tube or freon leak

If the refrigerator turns on but does not cool, the problem may be freon circulation system. defect:

1. Clogged capillary tube —small particles or moisture block the flow of refrigerant.
2. Freon leak —usually occurs at soldering points or due to corrosion tubes.

Signs of a blockage or leak:

• ❄️ The compressor works without stopping, but there is no cold.
• 🧊 The condenser (grid at the back) remains cold.
• 💨 The fan in the freezer is blowing, but the air is not cold.

Diagnostics:

• Unplug the refrigerator and turn it with the back wall towards you.
• Inspect capillary tube (thin copper tube going from the compressor to the evaporator). If it hot on one side and cold on the other it is a sign of blockage.
• Check the soldering joints oil stains —this indicates a freon leak.

These breakdowns impossible to fix on your own —special equipment is required for:

• 🔧 Purge the system with nitrogen (if clogged).
• 💨 Evacuate and refill with freon (if there is a leak).
• 🔥 Soldering pipes (if damage is detected).

⚠️ Attention: If you suspect a freon leak, do not turn on the refrigerator this can lead to overheating of the compressor and its final failure. Freon is non-toxic, but its leak disrupts the pressure balance in the system.

7. Fan failure in No Frost systems

Refrigerators with the system No Frost (Samsung RB37, LG GA-B429, Indesit DF 5200are equipped with a fan that distributes cold air. If it breaks, the refrigerator may:

• 🔇 Turn on, but not cool.
• 💨 Buzz louder than usual (the compressor is running idle).
• 🧊 Frost the back wall in the freezer.

How to check the fan:

1. Unplug the refrigerator and defrost it (if there is ice).
2. Remove the back panel in the freezer (usually it is secured with latches).
3. Find the fan - it looks like a small turbine with blades.
4. Try to turn the blades by hand. If they do not rotate or squeak, the fan is jammed.

Causes of fan failure:

• 🧊 Icing of the blades (if the refrigerator has not been defrosted for a long time).
• 🔧 Bearing wear (typical for models older than 5 years).
• 💥 Ingress of foreign objects (pieces of food, packaging).

If the fan does not spin, it needs to be replaced. For most models, a universal fan is suitable 45x45x10 mm (for example, Sunon KDE1204PKV3). Cost - about 1000 rubles. Replacement takes 20–30 minutes.

8. When to call a technician: signs of serious breakdowns

Some breakdowns cannot be repaired yourself - they require professional equipment and skills. Call a technician if:

• 🔧 Refrigerator turns on for 1-2 seconds and turns off (possibly the compressor is burnt out or the relay is faulty).
• ⚡ The display shows an error that is not manages to reset (E3, F7, H1 etc.).
• 💨 The refrigerator works, but does not cool (freon leakage or system blockage).
• 🔥 Housing compressor scalding hot (risk of fire!).
• 🖥️ Control board burned out (blackened tracks, burning smell).

Cost of repairs at the service center:

Before the visit masters:

• 📝 Write down refrigerator model (located on the sticker inside or behind).
• 📸 Take a photo error on the display (if any).
• 🗣️ Prepare to describe symptoms (when the problem started, what sounds are heard, etc.).

⚠️ Attention: If the refrigerator is under warranty, Do not disassemble it yourself this will void the warranty. Contact the brand's authorized service center.

FAQ: Frequently asked questions about a non-working refrigerator

The refrigerator does not turn on, but the light inside is on - what to do?

If there is a light, but the compressor is not starts, the problem is thermostat, start-protection relay or compressor. Start by checking the thermostat (short circuit its contacts as described in section 2). If the compressor does not respond, check the relay or call a technician to diagnose the motor.

The refrigerator clicks, but does not start - why reason?

Clicking noises are made by start-protection relaywhich is trying to start the compressor, but cannot. Reasons:

• The relay itself is faulty (needs replacement).
• The compressor is jammed (diagnosis with a multimeter is required).
• Low voltage in the network (check stabilizer).

If the relay clicks constantly (once every 1-2 seconds), this is a sign interturn short circuit in the compressor - the motor needs to be replaced.

The refrigerator turns on and immediately turns off - which check?

This behavior is typical for:

• Overheating of the compressor (let it cool for 1-2 hours).
• Faulty start-up protection relay (replace it).
• Failure in the electronic unit (needs reset or flashing).

If the problem repeats after shutdown, call a technician to diagnose the compressor and control board.

Is it possible to repair the refrigerator yourself if it is not freezes?

Yes, but only in some cases:

• 🔧 If the capillary tube is clogged you can try to blow it with nitrogen (but this is risky without experience).
• ❄️ If the No Frost fan is frozen —defrost the refrigerator for 24 hours.
• 🔌 If the thermostat does not work —replace it (it's easy).

But if the problem is freon leak, burnt compressor or electronic board it is better to contact a professional.

How much does it cost to repair a refrigerator if it does not turn on?

The cost depends on the breakdown:

• 🔧 Replacement of the thermostat — 1,000–2,500 rubles.
• ⚡ Replacement of the start-up relay — 1,500–3,000 rubles.
• 💨 Refueling freon —4,000–8,000 rubles.
• 🖥️ Repair of electronic unit —3,000–10,000 rubles.
• 🔥 Replacement of the compressor —6,000–15,000 rubles.

If the refrigerator is more than 10 years old, repairs can cost 50–70% of the cost of a new one. In this case, it is more advisable to buy new equipment.