How to properly remove the relay from a Minsk refrigerator: instructions with photos and advice from experts

The relay in the refrigerator Minsk is a small but critical element responsible for starting the compressor and protecting it from overloads. If the unit stops freezing, hums loudly or does not turn on at all, the problem may lie in this particular unit. However independent dismantling of the relay requires caution: incorrect actions lead to damage to the contacts, short circuit or failure of the compressor.

In this article we will look at how to safely remove the relay on refrigerators Minsk various modifications (including popular Minsk-15M, Minsk-128, Atlant-Minsk), what tools will be needed, and what to pay attention to during reassembly. You will also learn how to test the relay for functionality without special equipment.

⚠️ Warning: If your refrigerator is still under warranty, Self-repair will invalidate it. Check the conditions at the service center Minsk before starting work.

1. Preparation: tools and safety precautions

Before you begin dismantling, make sure you have everything you need. Working with the electrical components of the refrigerator requires compliance with safety precautions - even if the device is disconnected from the network, capacitors can retain a charge.

You will need:

• ✂️ Phillips screwdriver (usually PH2) - to remove the protective casing.
• 🔧 Flat screwdriver - for prying clamps or terminals.
• 📸 Smartphone —to photograph the location of the wires before disconnecting.
• 🧤 Dielectric gloves (optional, but recommended for protection).
• 🔦 Flashlight —lighting on the back of the refrigerator is often insufficient.

⚠️ Attention: Do not touch metal parts of the refrigerator (for example, compressor pipes) with bare hands if it has recently been turned on. The start relay capacitor can be energized up to 220 V even after being disconnected from the outlet. Let the device stand 10–15 minutes before working.

2. Where is the relay located in the refrigerator Minsk

In most models Minsk (for example, Minsk-15M, Minsk-128, Minsk-16) the relay is located next to the compressor on the rear panel. To find it:

1. Unplug the refrigerator and move it away from walls.
2. Remove the bottom protective cover (if there is one) - it is usually secured with latches or screws.
3. The compressor is a black “barrel” with tubes. Next to it you will see a small box (the size of a pack of cigarettes) with wires - this is start-protection relay.

On some models (for example, Minsk-245) the relay can be hidden under the plastic casing of the compressor. In this case, you will need to additionally unscrew 2-3 screws.

How to distinguish a relay from a thermostat?

The thermostat is usually located inside the refrigerator compartment (behind the plastic panel) and is connected to the temperature control knob. The relay is always located next to the compressor on the back wall.

🔍 Advice: If you are not sure that you have found the relay, look at the markings. There should be written on the case RTK, RTP, DANFOSS or a similar designation.

3. Step-by-step instructions for removing the relay

When the relay is found, we proceed to dismantling. The main rule is do not pull the wiresnot to damage the terminals. Follow this algorithm:

Disconnect the refrigerator from the mains|Take a photo of the location of the wires|Carefully remove the relay clamps|Disconnect the terminals (do not pull the wires!)|Mark the wires with a marker for reassembly-->

1. Disconnecting the wires. First Remove the plastic retainer (if there is one) that holds the relay to the compressor. Then gently pull the terminals up or to the side - they should come off without force. If the terminals are “stuck”, do not use force: treat them WD-40 and wait 5-10 minutes.
2. Removing the relay from the compressor. The relay can be attached:
   • 🔗 On the latches - just pull it up.
   • 🔩 On the screws - unscrew them with a Phillips screwdriver.

Checking contacts. Inspect the terminals on the compressor and the relay wires. If there is oxidation (green coating) or scorching (black spots), they need to be cleaned with fine sandpaper or alcohol.

⚠️ Attention: On some models Minsk (for example, Minsk-130) the relay is integrated with thermal protection. If you see an additional wire with a temperature sensor (a thin tube going to the compressor), do not disconnect it unless necessary - this may lead to false activation of the protection.

4. How to test a relay for functionality

The removed relay can be tested without special instruments, but for accurate diagnostics it is better to use a multimeter. Here are two ways to check:

Method 1: Visual inspection

Inspect the relay body for:

• 🔥 Burnt contacts — black or melted areas.
• 💧 Traces of corrosion — green or white coating on metal parts.
• 🔊 Cracks on the body may indicate mechanical damage.

Method 2: Check with a multimeter

Switch the multimeter to resistance test mode (200 Ohm). Connect the probes to the relay contacts:

• Between terminals S and M (or Start and Main) the resistance should be 20–40 Ohm.
• Between M and L (or Main and Line) — 0 Ohm (short circuit).
• If the readings are different, the relay is faulty.

Critical information: On relays type RTK-X (installed in Minsk-15M i Minsk-128) the normal resistance between the terminals 3 and 4 should be infinite (open circuit) at room temperature. If the multimeter shows resistance, the relay must be replaced.

5. Typical errors when removing the relay

Even experienced craftsmen sometimes make mistakes that lead to additional breakdowns. Here's what You cannot do when working with a relay:

• ⚡ Ignore the discharge of the capacitor. If you do not wait 10-15 minutes after turning off, the residual charge can damage the multimeter or cause an electric shock.
• 🔌 Pull the wires. Relay terminals are fragile - they are easy to break. Always hold onto the plastic housing of the connector.
• 🔧 Use unsuitable screwdrivers. A screwdriver that is too wide or narrow will strip the slots on the compressor screws.
• 📱 Do not photograph the connection diagram. Without a photo, it is easy to mix up the wires during reassembly, which will lead to a short circuit.

⚠️ Attention: If, after removing the relay, you notice that the compressor is “stuck” (does not turn off when you turn the thermostat knob), do not reconnect it without diagnostics. This is a sign of a jammed starting mechanism - the relay needs to be replaced i checking the compressor.

6. Installing a new relay: nuances for refrigerators Minsk

Before purchasing a new relay, make sure that it is suitable for your model. U Minsk relays of the following types are used:

• RTK-1 - for models Minsk-15M, Minsk-16.
• RTP-1 or DANFOSS 103N — for Minsk-128, Minsk-245.
• LRA15-22 —for modern modifications with inverter compressors.

🔧 Installation order:

1. Compare the new relay with the old one - the location of the terminals must match.
2. Connect the wires in accordance with the photograph (or markings, if you done).
3. Attach the relay to the compressor, making sure that the latches snap into place.
4. Before turning on the refrigerator, check that the wires do not touch the metal parts of the case.

⚠️ Attention: If you are installing a relay type DANFOSS instead original RTK, the thermostat may need to be adjusted. These relays have different sensitivity to the starting current.

7. When is it better to contact a specialist

Not all relay failures can be repaired yourself. Contact the service center if:

• 🔥 After replacing the relay, the compressor heats up, but does not start (a sign of a jammed motor).
• ⚡ The relay sparks or smokes when connected.
• 📉 The refrigerator runs for 5-10 minutes and turns off (possible freon leak or thermostat malfunction).
• 🔊 Extraneous sounds (knocking, grinding) are heard when the compressor is operating.

💰 Cost of replacing a relay in the service: from 1,500 to 3,000 rubles (excluding the cost of the part). If the problem is in the compressor, repairs will cost 5,000–8,000 rubles. For models Minsk over 10 years old, it is sometimes cheaper to buy a new refrigerator than to repair an old one.

How to find a good repairman?

Look for services with reviews on Yandex.Maps or 2GIS. Ask if the technician has experience working specifically with refrigerators Minsk - their design is different from Atlanta or Samsung. Also check whether a repair warranty is provided (standard - 3–6 months).

Frequently asked questions (FAQ)

Can the relay be repaired or just replaced?

In most cases, the relay is not repaired - it is replaced with a new one. Exception: if the problem is only in oxidized contacts, they can be cleaned and restored to functionality. However, such a repair is temporary, and soon the relay will fail again.

The Minsk refrigerator clicks, but does not start. Is this really a relay?

Clicks are a sign that the start relay is triggered, but the problem could also be in the compressor (jamming, broken winding) or in the thermostat. To make sure that the relay is at fault, replace it with a known working one or check with a multimeter.

Which relay company is better to buy for Minsk-15M?

For Minsk-15M original RTK-1 or analogues DANFOSS 103N0120, LRA15-22. Budget options include relay Termex or RTP-1. The main thing is that the rated current matches (usually 1.5–2.5 A).

After replacing the relay, the refrigerator works without stopping. What should I do?

This is a sign of a malfunction of the thermostat or a freon leak. The relay has nothing to do with it - it only starts the compressor. You need to check:

• Thermostat (replace or adjust).
• Refrigerant leak (a technician with equipment is needed).
• Clogged capillary tube (system flushing required).

Is it possible to temporarily start a refrigerator without a relay?

Technically yes, but this extremely dangerous. Without a relay, the compressor is not protected from overheating and may burn out. If you urgently need to preserve food, connect the compressor directly (bypassing the relay) for a maximum of 10-15 minutes, then turn it off and let it cool.