The appearance of a puddle under the refrigerator or the accumulation of water on the bottom shelf is a signal that cannot be ignored. Owners of household appliances Biryusa often face a situation when the condensate drainage system stops functioning properly. The main reason lies in the blockage of the channel through which moisture should go into a special tray above the compressor. If you notice that Biryusa refrigerator cries, you must immediately check the condition of the drain to prevent spoilage of food and swelling of the internal plastic.
Moisture in the chamber is formed naturally during operation of the unit, especially in models with drip defrosting system. During normal operation, water flows down the back wall and exits through an opening located at the bottom of the evaporator. However, if the channel is clogged with crumbs, ice or slime, the water has nowhere to go but spread across the bottom of the chamber and flow out. Understanding where the drainage hole isis the first step to a successful DIY repair.
Do not panic if you find water, since in most cases the problem is solved by simple cleaning without calling a technician. Modern models, such as Biryusa 133 or Biryusa 118have a similar design of the moisture removal system. It is only important to be careful not to damage the thin tubes or the back wall of the chamber with a sharp object. Next, we will analyze in detail the algorithm of actions for various types of equipment.
How the moisture removal system in Biryusa works
Condensate removal system in refrigerators Biryusa with drip defrosting it works on the principle of gravity. The water that forms on the back wall when frost thaws flows down into the groove. From there it enters drainage hole, which is connected to a plastic tube. This tube passes through the heat-insulating layer of the housing and exits into a container fixed above the compressor, where the moisture safely evaporates.
In models with the system No Frost the situation is somewhat different. There, moisture is removed from the evaporator hidden behind a plastic panel. If water appears in such refrigerators, this often indicates freezing of the drainage channel inside the housing or a malfunction of the defrost heating element. In single-chamber models, access to the drain is always open, while in two-chamber units with complete No Frost partial disassembly may be required.
⚠️ Attention: If your refrigerator is equipped with a No Frost system and water flows from the inside, do not try to pick at the chamber wall. In this case, the clog is deeper, behind the plastic cover of the evaporator, and the unit may need to be defrosted for 24 hours.
It is critical to understand the difference between the moisture collection groove and the entrance to the tube itself. The groove is a wide groove at the bottom of the back wall, and the hole is a circular entrance about 10 mm in diameter leading into the depth of the case. It is in this place that debris jams or ice jams most often form.
Why can the hole move?
In some older Biryusa models or after unqualified repairs, the plastic groove cover can be installed offset. This creates the illusion that there is no hole or that it is in a different location. Always check the integrity of the plastic parts.
The exact location of the drain in different models
The search drain hole should not be chaotic. In the vast majority of refrigerators, be it compact or tall, it is located strictly in the center of the rear wall of the refrigerator compartment. It is located at the lowest point, immediately above the shelf for vegetables (balcony). Biryusa, be it compact Biryusa 8 or high Biryusa 355, it is located strictly in the center of the rear wall of the refrigerator compartment. It is located at the lowest point, immediately above the vegetable shelf (balcony).
To find it, you you need to:
- 🔍 Go down to the level of the bottom shelf of the refrigerator.
- 🔍 Look at the center of the rear metal or plastic wall.
- 🔍 Find a round recess, often closed with a plastic grill or plug.
- 🔍 Make sure that underneath there is an oblong groove directed towards the center.
In some modifications, the entrance may be slightly shifted to the left or right, but this is rare for this brand. If you see a plastic grate with slots, it is under it that the entrance to the drainage tube is hidden. It does not always need to be removed if you use a soft brush, but for visual control it is better to remove the decorative trim.
Often users confuse technological holes in the foam or fasteners with drainage. The real hole always leads into the tube and has a characteristic bevel. If you blow into it, the air should flow freely and not immediately hit the wall.
Causes of blockage and signs of malfunction
Understanding the causes of blockage helps prevent the situation from recurring. The main enemy of the drainage system is food waste. Bread crumbs, food particles, and leaves from herbs easily fall into the groove during cleaning or careless storage. Mixing with condensate, they form a viscous mass that clogs a narrow channel.
The second common reason is the formation of ice plug. This happens if the refrigerator operates in a mode close to maximum cooling, or if the door seal is broken. Warm air, getting inside, creates excess condensation, which does not have time to drain and freezes right at the entrance to the tube, blocking the path of water.
Main symptoms indicating that drainage hole is not functioning:
- 💧 Water stands at the bottom of the refrigerator compartment or flows out onto the floor.
- 💧 There are large drops or ice hanging on the back wall that do not flow down.
- 💧 The appearance of an unpleasant musty smell, as stagnant water begins to “bloom.”
- 💧 Swelling of the internal plastic panel due to the expansion of frozen water in the channel.
Ignoring these signs can lead to more serious consequences, such as corrosion of metal parts or failure of electronics if water gets to the control module. Therefore, regularly checking the cleanliness of the drain is an important part of maintenance.
Instructions for cleaning the drain with your own hands
If you find a blockage, you must act consistently and carefully. Before starting any work, be sure to unplug the refrigerator from the power supply. This safety requirement is mandatory, since you will be working with water and metal objects near electrical components.
For cleaning you will need the following tools:
- 🛠️ A medical bulb or a large-volume syringe (without a needle).
- 🛠️ Flexible wire, special fishing line or brush for cleaning the drainage.
- 🛠️ Warm (not hot!) water.
- 🛠️ Rags or sponge for collecting water.
☑️ Algorithm for cleaning the drain
First try to remove visible debris with your hands or tweezers. Then fill the bulb with warm water and inject it into the hole under pressure. If the water does not go away, but rises back, it means the channel is clogged. Take a flexible wire (preferably with a bent end or tip so as not to pierce the tube) and carefully, using rotational movements, push the clog deeper. Do not use excessive force to avoid damaging the tube.
⚠️ Attention: It is strictly forbidden to use sharp objects (knives, knitting needles) without limiters. You could accidentally puncture the plastic tubing or damage the insulation, resulting in costly repairs.
After the blockage is broken, pour plenty of warm water over the channel to wash away any remaining dirt. The water should flow freely and gurgle in the tray above the compressor (at the bottom of the refrigerator). Make sure that it is dry under the refrigerator before turning it on again.
Specifics of models with No Frost and other systems
Owners of refrigerators Biryusa with a system No Frost (for example, some models of the series Cascade or new versions) you should know that their drainage hole is not visible. It is located behind the back panel inside the freezer or refrigerator compartment, depending on the design. It is impossible to get there without disassembling.
If water appears in the No Frost refrigerator compartment, most often this means that the drainage tube inside the case is frozen. In this case, mechanical cleaning with a brush from the outside will not help. The only safe way is to completely defrost the refrigerator while it is turned off during the day. This will allow ice in hard-to-reach places to melt and clear the duct.
Table of differences in maintenance of different types of Biryusa refrigerators:
| Type of system | Drain location | Cleaning method | Service frequency |
|---|---|---|---|
| Drip (Static) | Visible in the chamber, below | Brush, pear, warm water | Once every 6 months |
| No Frost (Refrigerator) | Hidden behind the panel | Defrost (24 hours) | As water appears |
| Combined | In the refrigerator - visible | Combined | Once a year |
| Freshness zone | Separate outlet (rarely) | Purge | When blockage |
For models with a “zero temperature” zone or separate containers, the moisture removal system can be autonomous. If water accumulates in a particular drawer, check whether the outlet for moisture is blocked by food or packaging.
Prevention and care of the drainage system
To prevent the question “where is the drainage hole” from arising too often, it is important to follow the operating rules. Regular cleaning of the refrigerator is the best prevention. Once a month, wipe the back wall and the area around the drain with a damp cloth, removing plaque and mucus.
Use special refrigerator cleaners or a weak soda solution. Harsh chemicals can damage plastic and rubber seals. After washing, be sure to wipe all surfaces dry.
Also monitor the temperature conditions. Do not set the temperature in the refrigerator compartment below +4...+5 degrees unless necessary. Too low a temperature promotes more intense condensation and increases the risk of moisture freezing in the duct, especially if the door seal does not fit perfectly.
What to do if water continues to flow after cleaning?
If you have cleaned the drain hole, but water is still standing inside or flowing out, the problem may be more serious than a simple blockage. Perhaps the refrigerator itself is displaced (the angle of inclination is broken), the drainage tube inside the case is pinched, or the foam has leaked, causing water to flow past the groove. It could also be due to a crack in the evaporator tray itself. In such cases, diagnostics by a specialist is required.
Is it possible to use boiling water to defrost ice in the drain?
It is not recommended to use boiling water, since a sharp temperature change can lead to cracks in the plastic groove or damage to the tube. It is better to use warm water (about 50-60 degrees) and give it time to melt the ice, repeating the procedure several times.
How often should you wash the tray above the compressor?
The evaporator tray, where the water flows, usually cleans itself in the process of evaporating moisture from the heat of the operating compressor. However, if the room is very dusty or there is animal hair, once every 1-2 years it is advisable to get to the bottom rear part of the refrigerator and wipe the tray so that a thick mud mass does not form there.
Does the installation level of the refrigerator affect the operation of the drain?
Yes, it does. The refrigerator should stand with a slight tilt back (the legs at the front are twisted higher than at the back). This allows water to flow naturally into the drainage hole. If the refrigerator is tilted forward, water will remain at the bottom of the chamber, even if the drain is clear.