How to clean the drainage hole in the refrigerator: step-by-step instructions with photos

Have you noticed that water accumulates under the vegetable drawers, and there is an unpleasant smell in the refrigerator? Most likely, the culprit is a clogged drainage hole small hole in the back wall of the chamber through which condensate flows into a special pan. If it is not cleaned for years, food particles, mold and bacteria accumulate inside, which not only spoil the air, but can also damage the equipment.

In this article you will find proven cleaning methods - from improvised means (vinegar, soda, peroxide) to special brushes and chemistry. We will tell you how to get to the hole in models Samsung, Atlant, Indesit and other brands without damaging the plastic. We’ll also explain why using matches or toothpicks can lead to compressor failure —even some craftsmen miss this nuance.

Why the drain hole gets clogged and why it’s dangerous

The drainage system of the refrigerator works on the drain principle: condensate formed during defrosting flows down the back wall into a hole with a diameter of 3–5 mm, and then falls into the pan above the compressor. Over time, the following settle there:

• 🍎 Particles of food —pieces of greenery, fruit pulp, crumbs.
• 🦠 Mold and mildew —due to constant humidity.
• 🧂 Mineral deposits —from hard water.
• 🧴 Fat films - if the refrigerator is rarely washed.

Consequences of blockage:

⚠️ Attention: If water stops flowing into the pan, it will start accumulate under vegetable drawers. Moisture can seep into electrical contacts - this is one of the reasons short circuit in refrigerators with a No Frost system.

In models with drip system (for example, Biryusa or Stinol) clogged drainage leads to icing of the rear wall. In No Frost (LG, Bosch) the problem is more often manifested by puddles under the fruit container.

Where is the drain hole in your refrigerator

The location of the drain depends on the type of defrosting system:

• 🔍 Drip system (most budget models): hole located in the center of the back wall of the refrigerator compartment, under the plastic panel. Sometimes it is covered with a small cap.
• ❄️ No Frost (premium models): the drainage is hidden behind the back panel (you need to remove the cover) or at the bottom of the chamber, under the vegetable drawer.
• 🍦 Low Frost (hybrid system, for example, in Liebherr): there may be two holes - in the refrigerator and freezer compartments.

To find the drain:

1. Unplug the refrigerator.
2. Remove all shelves and containers from the refrigerator compartment.
3. Shine a flashlight on the back wall - look for a round hole with a diameter of 3-5 mm.
4. In models No Frost carefully pry off the plastic panel on the back wall with a screwdriver (it held on by latches).

How to remove the back panel in No Frost without breaking?

In refrigerators Samsung i LG the panel is attached to plastic clips. Use a thin screwdriver to pry it from the side, then pull it towards you. Models Bosch may have an additional screw under the decorative plug.

In some refrigerators (for example, Atlant or Nord), the drainage hole is located at the bottom of the chamberunder the plastic gutter. To get to it, you will have to remove the bottom shelf.

How you can clean the drainage: safe and dangerous methods

Not all products are suitable for cleaning. For example, metal objects (knitting needles, wire) can scratch a plastic tube, and aggressive chemistry can corrode the seals. Here's what is allowed and prohibited:

For deep cleaning suitable:

• 🧼 Special products —sprays for refrigerators (Topperr, Unicum). They dissolve fat and kill bacteria.
• 🧹 Brushes with silicone bristles - do not scratch plastic (sold in hardware stores).
• 💧 Rinse bulb - creates water pressure, washing out the blockage (use warm water!).

⚠️ Attention: If a piece of food is stuck in the drainage tube, do not try to push it through with your finger or a match. In models Indesit i Ariston the tube goes directly to the compressor - moisture getting into the motor can cause interturn short circuit.

Step-by-step instructions: how clean the drainage hole

Before starting work unplug the refrigerator and remove all products. If there is ice in the chamber, let it melt (you can speed up the process by placing a bowl of hot water inside).

Method 1: Mechanical cleaning (cotton swab or brush)

Suitable for light blockages.

1. Moisten a cotton swab in a solution of soda (1 tbsp per glass of water).
2. Carefully insert it into the hole on the 1–2 cm, scrolling. Do not press too hard!
3. Repeat 3-4 times, each time using a new stick.
4. Rinse the hole with warm water from a bulb or syringe (without a needle).

Method 2: Rinsing with a solution (soda + peroxide)

Effective against mold and odor.

1. Mix 2 tbsp. l. soda, 1 tbsp. l. hydrogen peroxide and 200 ml of warm water.
2. Pour the solution into the hole using a syringe or bulb.
3. Wait 15–20 minutes (can be left overnight for severe stains).
4. Rinse with clean water, dry with a napkin.

Method 3: Blowing (for deep blockages)

If the water is in the tube and does not go away.

1. Take a bicycle pump or a vacuum cleaner with a blowing function.
2. Attach the tube to the drain hole and make several short presses.
3. Repeat 2-3 times, then rinse with water.

⚠️ Attention: In refrigerators Samsung with a system No Frost the drainage tube may be bent. Strong air pressure can damage it - blow carefully!

How to clean the drainage in the freezer

In the freezer, the drainage hole becomes clogged less often, but if this happens, you need to act differently:

1. Defrost the chamber (turn off the refrigerator for 12-24 hours).
2. Find the hole - it is usually located at the bottomunder the plastic grate.
3. Fill it with hot water (60–70°C) from a pear - this will dissolve the ice and dirt.
4. Clean with a brush or silicone braided wire.
5. Rinse with a solution of vinegar (1:1 with water) for disinfection.

In models with Full No Frost (for example, Electrolux) the freezer drainage is connected to the general system. If the blockage is severe, it may be necessary disassembling the back panel —it is better to call a technician.

What to do if the drain is clogged with ice

Icing of the hole is a common problem in refrigerators with drip system (Atlant, Beko). Ice is formed due to:

• ❄️ Incorrect temperature (below +4°C in the main chamber).
• 🚪 Frequent opening of the door —moisture does not have time to evaporate.
• 🔧 Thermostat breakdowns —the refrigerator works without stopping.

How to fix:

1. Turn off the refrigerator and let the ice melt (do not pick knife!).
2. Clean the hole with a salt solution (1 tablespoon per glass of water) - this will prevent re-icing.
3. Check the door seal. If it is damaged, replace it - otherwise the problem will return.
4. Set the temperature to +5°C (optimal for most models).

Prevention of blockages: how to avoid problems

To prevent the drain hole from becoming clogged:

• 🧹 Wash the refrigerator once every 2-3 months (even if there is no visible dirt).
• 🥬 Store food in containers - this will prevent crumbs from getting into the hole.
• 🌡️ Watch the temperature - at +3°C and below moisture freezes in the drainage.
• 🚫 Do not place hot dishes in the refrigerator - steam condenses on the walls.
• 💧 Wipe condensate from the back wall with a dry cloth.

For disinfection, rinse the drainage every six months citric acid solution (1 tsp per glass of water). This kills bacteria and prevents the formation of mold.

In refrigerators with No Frost (LG, Samsung) the drainage system is sufficient to clean once a year. In models with drip defrosting (Atlant, Indesit) - every 6 months.

FAQ: Frequently asked questions about cleaning the drainage

Is it possible to clean the drainage hole with a match?

No! The match may break inside the tube, and its fragments will clog the drain even more. In the worst case, they will get into the compressor, which will lead to motor breakdown. Use only flexible tools - cotton swabs or silicone brushes.

What to do if after cleaning the water still does not go away?

Possible reasons:

1. Clogged drain tube (you need to clean it from the outside - it comes out near the compressor).
2. Overflowing condensate tray (drain the water and wipe it).
3. Damaged rubber gasket tubes (needs replacement).

If you can’t handle it yourself, call a technician - there may be a problem in wrong slope of the tube (relevant for refrigerators Stinol and Nord).

How to clean the drainage in a No Frost refrigerator if it is hidden behind the panel?

In systems No Frost the drainage hole is often located behind the back wall. get there:

1. Turn off the refrigerator.
2. Remove the back panel (it is attached with clips or screws).
3. Find the hole under the fan - it can be covered with a plastic flap.
4. Clean it with a brush and rinse with a solution soda.

In models Bosch i Siemens the drainage can be connected to evaporator —be careful not to damage it.

What products are best not to use for cleaning?

Avoid:

• 🧪 Abrasive powders (scratch the plastic).
• 🔥 Boiling water (may deform the tube).
• 🧴 Products with chlorine (corrodes seals).
• 🔧 Metal objects (risk of tube puncture).

For For disinfection, it is better to use food acids (lemon, vinegar 6%) or specialized chemicals for refrigerators.

Do you need to clean the drainage in a new refrigerator?

In new refrigerators, the drainage hole is usually clean, but preventive washing it won’t hurt. Do this 2-3 months after purchase to remove possible dust from production and prevent the formation of mold. Use a mild solution of soda (1 teaspoon per glass of water).