Where is the thermostat in the Veko refrigerator: search, check and replacement

Why is it important to know the location of the thermostat in the refrigerator Veko

The thermostat (or thermostat) is the “brain” of the refrigerator, which controls the temperature in the chambers. If it fails, the compressor either runs without stopping or does not turn on at all. In refrigerators Veko the location of the thermostat depends on the model, year of manufacture and type of cooling system. For example, in old single-chamber Veko R-410 he is hidden inside the chamber, and in new double-chamber Veko RCN-5033 it is hidden behind the back panel.

You can find the thermostat yourself in 10–15 minutes if you know the key signs of its location. But before you get into the structure, make sure that this is the problem: check if the light inside is on, if you can hear the noise of the compressor, if there is icing on the back wall. If the refrigerator does not freeze, but there is light, the thermostat is to blame in 80% of cases.

In this article you will find:

• 🔍 Exact thermostat location diagrams for popular models Veko (single- and two-chamber).
• 🛠️ Step-by-step instructions on how to get to the thermostat without damaging parts.
• ⚡ How to check the thermostat with a multimeter and understand whether it is needed replacement.
• 💡 Typical mistakes when replacing and how to avoid them.

Where to look for a thermostat: 3 main places in refrigerators Veko

Depending on the design of the refrigerator, the thermostat can be located in one of three places. Let's look at each option with examples of models.

1. Inside the refrigerator compartment (single-chamber and some double-chamber models)

This is the most common place for thermostats in refrigerators Veko manufactured before 2015. The thermostat is usually hidden under plastic cover next to the light bulb or on the side wall. Examples of models:

• 🔹 Veko R-140, R-160 (single-chamber)
• 🔹 Veko RCN-3820, RCN-3825 (double-chamber with mechanical control)

To get to it, just remove the protective panel, which is attached to latches or one or two self-tapping screws. Do not confuse the thermostat with a temperature sensor —the latter looks like a small plastic cylinder, and the thermostat has a metal body with a bellows tube.

2. Behind the rear panel (modern models with electronic control)

In refrigerators Veko after 2016, the thermostat is often moved outside the chamber - to the back wall, next to the compressor. This is typical for models with No Frost or an electronic display, for example:

• 🔹 Veko RCN-5033, RCN-5035 (with a bottom freezer)
• 🔹 Veko RCS-5540 (Side-by-Side)

In this case, the thermostat looks like a small box with wires attached to the evaporator tube. In models with the No Frost system, the thermostat often combined with a defrost timer - they are easy to confuse, so before replacing, check the diagram of your model.

3. In the upper part of the refrigerator compartment (models with a top freezer)

In two-chamber refrigerators Veko with a top freezer (for example, Veko RCN-3920), the thermostat may be located under the top panel, next to the fan. It is usually covered with a decorative cover, which is removed after unscrewing two screws.

Please note: in such models they are often installed double thermostat separately for the refrigerator and freezer compartments. If only one of them is faulty, the second may continue to work, which complicates diagnostics.

⚠️ Attention: In refrigerators Veko with electronic control (display), the thermostat can be integrated into the control board. In this case, replacing it requires soldering or completely replacing the module - do not undertake this without experience working with electronics.

How to get to the thermostat: step-by-step instructions with photos

Before disassembling the refrigerator unplug it and take out all the food. Prepare the tools:

• 🔧 Phillips and flathead screwdrivers
• 🔨 Pliers (for removing clamps)
• 📸 Phone for photographing the location wires
• 🧤 Gloves (to avoid leaving fingerprints on the internal panels)

Step 1: Removing the internal panel (for the thermostat inside the chamber)

If the thermostat is located inside the refrigerator compartment (as in Veko R-140 or RCN-3820), proceed as follows:

1. Unscrew the screws holding the plastic cover (usually they are hidden under the plugs).
2. Carefully pry the cover with a flat screwdriver - it is held on by latches.
3. Under the cover you will see a thermostat: a metal cylinder with a tube going to the evaporator.

Do not pull the bellows tube —it is filled with freon and can be damaged!

Step 2: Removing the rear panel (for the thermostat outside)

In models like Veko RCN-5033 the thermostat is hidden behind the back wall. To get to it:

1. Unscrew the screws around the perimeter of the rear panel (usually 4-6 pieces).
2. Remove the panel - under it you will see the compressor, condenser and thermostat (box with wires).
3. Disconnect the terminals, having previously photographed their location.

Take a photo of the wire connection|

Mark the position of the bellows tube with a marker|

Check the new thermostat for compatibility with the model|

Prepare sealant for sealing (if required)-->

Step 3: Checking the thermostat without dismantling

If you are not sure that the problem is in the thermostat, you can carry out a quick diagnosis:

1. Set the temperature regulator to maximum.
2. Listen if the relay clicks when you turn the knob. If not, the thermostat is faulty.
3. Check whether cold is flowing through the bellows tube (it should be icy). If the tube is warm, the thermostat does not work.

⚠️ Attention: In refrigerators Veko with a system No Frost the thermostat can be hidden under a layer of thermal insulation. Do not cut it with a knife - bend it carefully so as not to damage it.

What to do if the thermostat is stuck to the tube?

If the thermostat cannot be removed from the bellows tube due to oxidation, do not try to tear it off - this may damage the system. Instead:

1. Apply WD-40 or alcohol to the mounting area.

2. Wait 10–15 minutes.

3. Gently twist the thermostat left and right until it gives in.

If the tube is broken, you will need to replace the entire bellows block, which will cost more.

How to check the thermostat with a multimeter: 3 ways

Even if you find the thermostat, you need to make sure that it faulty For this you will need a multimeter. The test can be performed in three ways.

Method 1: Check for open circuit

This method is suitable for mechanical thermostats (for example, in Veko R-140):

1. Switch the multimeter to resistance test mode (200 Ohms).
2. Connect the probes to contacts 3 and 4 (usually they are signed).
3. At room temperature, the resistance should be 0 Ohm (closed).
4. Immerse the bellows tube in ice for 2-3 minutes. If the thermostat is working, the resistance will become infinite (the circuit will open).

If the resistance does not change, the thermostat is faulty.

Method 2: Checking the voltage

For electronic thermostats (for example, in Veko RCN-5033):

1. Plug in the refrigerator.
2. Switch the multimeter to voltage measurement mode (200 V).
3. Connect the probes to the power contacts thermostat (usually L i N).
4. The voltage should be 220–230 V. If it is not there, the problem is in the wiring or control board.

Method 3: Checking operation relay

If the thermostat is mechanical, you can check its operation “by ear”:

1. Rotate the temperature control knob from minimum to maximum.
2. In a certain position it should be heard distinct clicking —this triggers the relay.
3. If there is no click, the thermostat needs to be replaced.

Replacing the thermostat in the refrigerator Veko: step-by-step master class

If the diagnostics have confirmed a malfunction, proceed with replacement. The main rule: use a thermostat of the same model or an analogue with identical characteristicsFor refrigerators Veko most often suitable:

• 🔧 K-59 (for single-chamber models)
• 🔧 TAM-133-1M (for two-chamber)
• 🔧 Danfoss 077B6 (for No Frost systems)

Step 1: Disconnecting and dismantling the old thermostat

Before replacing:

1. Disconnect the refrigerator from the mains.
2. Take a photo of the connection of the wires to the thermostat.
3. Carefully remove the bellows tube from the mount (do not bend it!).
4. Disconnect all wires, remembering their location.

Step 2: Installing a new thermostat

When installing a new thermostat:

1. Connect the wires in the same order as on the old thermostat.
2. Fix the bellows tube in its original place (it should fit snugly against the evaporator).
3. Make sure there are no kinks in the tube - this will disrupt the operation of the sensor.

Step 3: Check after replacement

After installation:

1. Turn on the refrigerator and set the temperature to medium.
2. Check whether the compressor turns on (should start working in 5-10 minutes).
3. Make sure that the thermostat clicks when you turn the knob.

⚠️ Attention: B refrigerators Veko with electronic control, after replacing the thermostat, you may need to reset the errors. To do this, unplug the refrigerator for 10 minutes, then turn it on again. If the error remains (for example, E1), check the connection of the sensors.

1. The wires are connected correctly (especially phase and zero). data-i="224">2. The tightness of the bellows tube to the evaporator.

2. Tight fit of the bellows tube to the evaporator.

3. Temperature settings - perhaps the regulator is at maximum.-->

Typical mistakes when replacing a thermostat and how to avoid them

Even experienced technicians sometimes make mistakes that lead to repeated breakdown. Here are the most common ones:

• ❌ Using an incompatible one. thermostat. For example, installing K-59 instead of TAM-133 will lead to incorrect operation of the compressor. Always check the markings on the old thermostat.
• ❌ Kink in the bellows tube. This breaks the tightness and leads to gas leakage. The tube should lie freely, without tension.
• ❌ Incorrect wire connection. If you mix up 3 and 4 contacts, the refrigerator will either not turn on or will work continuously.
• ❌ Forget about the seal. In some models Veko thermostat it is attached through a rubber gasket. If it is not installed, moisture will enter, which will lead to corrosion of the contacts.

Another common problem is incomplete diagnosisFor example, if the thermostat is working and the refrigerator is not working, the reason may be:

• 🔌 Compressor (does not start, hums, but does not freeze).
• ❄️ Leakage freon (evaporator tubes are unevenly covered with frost).
• 💡 Control board (in electronic models).

How to distinguish a thermostat malfunction from a compressor breakdown?

If the compressor does not turn on at all (no noise, does not heat up), the problem may be in:

- Thermostat (does not give a start signal).

- Start relay (clicks, but the motor does not start).

- Broken compressor winding (checked with a multimeter in resistance mode).

If the compressor hums, but does not freeze - the thermostat is to blame, a freon leak or a blockage in the capillary tube.

Where to buy a thermostat for a refrigerator Veko and how much does it cost

A new thermostat can be purchased in several places:

• 🛒 Official service centers Veko. Here they are guaranteed to pick up an original part, but the price will be higher (from 1,500 to 3,500 ₽).
• 🛒 Online spare parts stores. For example, for “Spare parts for refrigerators” or “220 Volt” thermostats K-59 or TAM-133 cost 800–2,000 rubles.
• 🛒 Markets or electronics stores. Here you can find budget analogues (from 500 rubles), but the quality may be lower.

When choosing, pay attention to:

• 🔹 Marking (must match the old thermostat).
• 🔹 The length of the bellows tube (in some models Veko it may be extended).
• 🔹 Mounting type (on screws or latches).

Thermostat model	Suitable for refrigerators Veko	Average price (₽)	Where to buy
K-59	R-140, R-160, RCN-3820	800–1 200	Online stores, service centers
TAM-133-1M	RCN-3920, RCN-5033	1 500–2 500	Official dealers, spare parts markets
Danfoss 077B6	RCS-5540 (No Frost)	2 000–3 500	Service centers, specialized stores

⚠️ Attention: Before purchasing, check with the seller whether the thermostat is suitable for your model VekoSome thermostats are universal, but may require modification (for example, extension of the bellows tube).

FAQ: Frequently asked questions about the thermostat in the refrigerator Veko

❓ How to understand that the thermostat is broken and not the compressor?

If the compressor does not turn on at all (no noise, the case does not heat up), the problem is most likely in the thermostat or the start relay. If. the compressor hums, but does not freeze - the thermostat is to blame, there is a freon leak or a blockage in the system. Also check whether the light inside is on: if so, and the refrigerator does not work - 90% of the fault lies with the thermostat.

❓ Is it possible to repair the thermostat or just replace it?

Mechanical thermostats (for example, K-59) are not repaired - they are only replaced. In some cases, electronic thermostats can be restored (for example, replacing the sensor or soldering the contacts), but this requires special skills. In 95% of cases, it is easier and cheaper to install a new one.

❓ How long does it take to replace a thermostat?

If the thermostat is located inside the chamber (as in Veko R-140), the replacement will take 20-30 minutes. If it is hidden behind the back panel (as in Veko RCN-5033) - up to 1 hour. The longest part is dismantling the panel and connecting the wires.

❓ What will happen if you do not change a broken thermostat?

If the thermostat is stuck in the “on” position, the compressor will work without stopping, which will lead to its overheating and breakdown (the cost of replacing the compressor is from 5,000 ₽). If the thermostat does not turn on the compressor, the refrigerator simply will not freeze, and the food will spoil.

❓ Is it possible to temporarily do without a thermostat?

Yes, but it is dangerous! You can connect the wires 3 i 4 directly - the compressor will work constantly. However, you can operate the refrigerator this way for no longer than a day, otherwise the compressor will burn out. This method is only suitable for testing or in emergency cases.