Tubes in the refrigerator: where to look, why they are needed and how not to confuse with wires

Have you ever Have you looked behind the back wall of the refrigerator and gotten lost in the maze of tubes, wires and pipes? If yes, then you are not alone. Even experienced craftsmen sometimes confuse drainage tube with capillaryand take it for an electrical cable. Meanwhile, each tube performs a strictly defined function - from condensate removal to refrigerant circulation. And if you decide to clean, replace or simply understand the structure of your condenser highway mistaken for an electrical cable. Meanwhile, each tube performs a strictly defined function - from condensate removal to refrigerant circulation. And if you decide to clean, replace or simply understand the structure of your Indesit, Samsung or Atlant, it is important to know exactly where everything is.

In this article we will not only show the layout of tubes in refrigerators of different types (drip type, No Frost, with a bottom freezer), but also explain how to distinguish them by appearance, material and even to the touch. We will also warn you against dangerous mistakes that can lead to freon leakage or a short circuit.

Hint: if you urgently need to find a specific pipe (for example, a drain pipe for cleaning), use section navigation at the end of the article.

What tubes are in the refrigerator and why are they needed

In a modern refrigerator you can count from 3 to 7 tubes - depending on the model and cooling system. All of them are divided into three main groups:

• 🔧 Refrigerant tubes - freon (or other refrigerant) circulates through them. These are capillary tube, suction and discharge line, as well as filter drier.
• 💧 Drain tubes - remove melt water from the chamber (in models with a drip system or No Frost).
• ⚡ Electrical cables - often confused with tubes due to similar insulation, but they are not hollow and carry current to the compressor, fans and sensors.

The most “problematic” tube for users is drainage. It clogs most often, which leads to accumulation of water under the vegetable boxes or even leaks onto the floor. But capillary tube (thin as a hair) is critical for the operation of the system: if it. becomes bent or clogged, the refrigerator will stop freezing.

In refrigerators with No Frost another tube is added - defrostingwhich supplies hot freon to the evaporator to remove frost. It is often confused with drainage, but its function is different.

Where to look for tubes: location diagram by model

The location of the tubes depends on refrigerator designs and defrost typeWe have collected typical layouts for popular brands:

In refrigerators Side-by-Side (for example, Samsung RL60), the drainage tube is usually hidden behind the decorative panel at the bottom of the freezer. To get to it, you will have to remove the bottom cover.

Important! In models with inverter compressor (for example LG GA-B489) refrigerant tubes can be thinner and more flexible - they can be easily damaged if handled carelessly.

How to distinguish refrigerator tubes from wires and from each other

The most common mistake is to mix them up drain tube c power cable. The consequences can be sad: if you clean the cable with wire, you risk getting an electric shock or damaging the insulation. Here's how to distinguish between them:

• 🔌 Electric cable:
  • Not hollow (cannot be blown out)
  • Often braided with markings (for example, 220V)
  • Goes from the compressor to the socket or control units
• 💦 Drain tube:
  • Plastic, flexible, often translucent
  • Can be blown out (if not clogged)
  • One end is in the chamber (under the evaporator), the other is in a container for condensate
• ❄️ Capillary tube:
  • Thin (1–3 mm), copper or aluminum
  • Rigid, does not bend with your hands
  • Connects the filter drier and the evaporator

Another reliable way - visual inspection of the route:

- The drainage tube always goes down (according to the drain principle).

- The capillary tube often soldered to others elements (for example, to the return line).

- Condenser tube (thick, black) usually hot during compressor operation.

What what happens if you mix up the tubes?

If you clean the capillary tube as a drainage tube, you can damage its walls, which will lead to freon leakage. And if you squeeze the condenser tube, the compressor will wear out, which will reduce its service life by 2-3 times.

Drainage tube: where exactly is it located and how is it located? clean

The drainage system is the most vulnerable place in refrigerators with drip defrosting. If water accumulates under the vegetable drawers or flows onto the floor, it is to blame. Here exact coordinates for popular models:

• 🍎 Atlant, Biryusa, Stinol: the tube is located under the evaporator (the back wall of the refrigeration chamber), goes into the container above the compressor.
• 🔄 Indesit, Ariston: hidden behind the plastic panel at the bottom of the refrigerator compartment (you need to snap off 2-3 clips).
• ❄️ Samsung No Frost: the drainage hole is located under the freezer compartment, the tube goes down behind the back panel.

To clean the drain tube:

1. Unplug the refrigerator.
2. Remove the bottom shelf or vegetable drawer.
3. Find the drain hole (usually covered with a plug).
4. Rinse the tube with warm water using a syringe or syringe (without needles!).
5. If the blockage is severe, use a soft wire (for example, from a hanger), but not metal!

⚠️ Attention! Never use sharp objects (knitting needles, screwdrivers) for cleaning - they can pierce the tube. If the blockage does not clear, it is better to call a specialist: perhaps the problem is a deformation of the tube or an ice plug.

Refrigerant pipes: how to find and why they should not be touched

The pipes through which freon circulates are heart refrigeration system. Their damage leads to a refrigerant leak and the refrigerator stops freezing. Here's how to identify them:

• 🔍 Capillary tube:
  • Diameter: 1–3 mm.
  • Material: copper or aluminum.
  • Location: comes from filter-drier (black cylinder next to the compressor) to the evaporator.
• 🔥 Discharge tube:
  • Diameter: 6–10 mm.
  • Hot to the touch (up to 60–80°C) during operation compressor.
  • Connects the compressor and condenser (grid at the back).
• ❄️ Return pipe:
  • Diameter: 4–8 mm.
  • Cold, can be covered with condensation.
  • It goes from the evaporator back to the compressor.

If you notice that one of the refrigerant tubes bruised, freon leaked (oily stains) or iced up is a sign of a malfunction. You cannot repair them yourself: you need evacuating the system refrigerant charging, which is done only with the help of special equipment.

⚠️ Attention! Freon in modern refrigerators (for example, R600a or R134a) is colorless and odorless, but if leaked in large quantities it can cause suffocation. If you feel dizzy when working with the back panel, ventilate the room immediately.

5 mistakes when searching for tubes: what can go wrong

Even experienced users sometimes make annoying mistakes. Here are the most common:

1. They confuse the condenser tube with the drainage —the first is hot and hard, the second is cold and flexible.
2. They try to clean the capillary tube —this will lead to blockage and breakdown of the refrigerator.
3. Ignore the plastic casings —in models No Frost the tubes are often hidden under panels that need to be carefully removed.
4. They do not check the drain after cleaning —if the water is still standing, it means the blockage has not been removed or the tube is deformed.
5. They work under voltage —even if you do not touch the wires, the risk of a short circuit with wet hands remains.

Another typical problem — damage to the insulation on the tubes. For example, in refrigerators Liebert or Beko the capillary tube often comes in a foam shell. If it is damaged, the refrigerator will begin to “sweat” from the inside.

If you doubt your abilities, it is better to contact a specialist. The average cost of diagnosing tubes is from 1,500 rubles, which is cheaper than repairs after an unsuccessful intervention.

How to check that the tubes are working correctly

After cleaning or inspecting the tubes, you need to make sure that everything is working as it should. Here is a simple checklist:

1. Drain tube:
   • Pour 50-100 ml of water into the drain hole - it should quickly go into the container.
   • Check the pan on the compressor - if it is full, the tube is clogged.
2. Capillary tube:
   • When the compressor is running, it should be cold.
   • If frost appears on it, freon may leak.

Condenser tube:

• Should be heated through 5-10 minutes after turning on the refrigerator.
• If it remains cold, there is a problem with the compressor or refrigerant.

In refrigerators with No Frost add one more point: check if ice is building up on the back wall of the freezer. If yes, the defrost tube may be faulty.

FAQ: Frequently asked questions about tubes in the refrigerator

Is it possible to replace the drainage tube yourself?

Yes, but only if it is not built into the case. In most models (Atlant, Indesit), you can carefully pull it out and insert a new one (a silicone tube with a diameter of 8–10 mm is suitable). The main thing is not to squeeze it during installation.

Why does water flow from the drainage tube onto the floor?
There are two reasons:
1. The tube has come out of the condensate container (its position needs to be corrected).
2. The container is overfilled or cracked (replacement required).

In models No Frost also check whether the drain hole in the freezer is clogged.

How to understand that freon is flowing and not water?

Freon:

• Colorless and odorless.
• Leaves oily stains (the refrigerant is mixed with compressor oil).
• If there is a leak, the refrigerator stops freezing, and the compressor works without stopping.

Water accumulates inside the chamber or under the refrigerator.

Is it possible to insulate the tubes so that there is no condensation?

Yes, but only condenser and reverse pipes - for this they use special thermal insulation (for example, Armaflex). The drainage tube cannot be insulated - this will interfere with the drainage of water.

What to do if the tube is frozen?

Causes of icing:

• For drain tube: blockage or incorrect angle of inclination.
• For capillary: freon leak or blockage.
• For defrost tubes (in No Frost): malfunction of the heater or timer.

First In two cases, you can try cleaning or defrosting the refrigerator. In the third, you need a master.