Detecting a puddle on the kitchen floor or water inside the refrigerator compartment is always an unpleasant surprise that can catch taken by surprise. Most often, the reason lies in a banal blockage of the drainage channel through which condensate should flow into the evaporator. Ignoring this problem can lead to spoilage of products, the appearance of mold, and even failure of the electronic components of the unit.
In this article we will look in detail at why it occurs clogged drain hole, how to safely fix it without calling a technician and what tools are required for this. Proper maintenance of the moisture removal system will extend the life of your Indesit, Atlant or LGby maintaining an ideal microclimate inside the chambers.
Why the drain hole is clogged and how to notice it
The main reason the occurrence of plugs in the drainage tube is the ingress of food particles, crumbs or mold deposits. When you store food in open containers or bags touch the back wall, microscopic particles are washed away by condensation and settle in a narrow channel. Over time, this sediment compacts, turning into a dense plug that completely blocks the outflow of moisture.
Another risk factor is a violation of the temperature regime. If the back wall of the chamber is covered with a “coat” of ice, then during defrosting the volume of water may exceed the drainage capacity. In such cases, the water simply does not have time to leave and overflows over the edge of the groove, flowing onto the shelves. It is important to monitor the condition door seals, since a loose fit increases the amount of condensation significantly.
⚠️ Attention: If the water in the refrigerator has an unpleasant odor or a cloudy color, this is a sure sign of bacterial growth in the stagnant fluid of the drainage system. Urgent disinfection is required.
You can understand that the channel is clogged by characteristic signs. Water begins to accumulate on the lower shelves or under the vegetable drawers. The back wall may become unevenly covered with ice. In some models with the system No Frost water can seep inside the housing, causing corrosion of metal parts.
Preparation for cleaning: necessary tools and safety
Before you begin any manipulations with the internal systems of the refrigerator, it is necessary to ensure the safety of the process. The first and most important step is to completely disconnect the device from the electrical outlet. Unplug the plug from the socket to eliminate the risk of electric shock or accidental start of the compressor during operation.
For high-quality cleaning, you will need a minimum set of tools, which can be found in every home. Do not use sharp metal objects, such as knives or knitting needles, as they can easily damage the plastic walls of the canal or pierce the tube, which will lead to costly repairs.
- 🧼 Rubber bulb or large medical syringe without a needle for rinsing with water.
- 🧶 Soft wire, brush for cleaning bottles or a special flexible brush.
- 🌡️ Warm water and mild detergent for disinfection.
- 🔦 Flashlight for visual inspection of the depth of the hole.
Also prepare several dry rags or paper towels for quick clean up leaking water. If you have a model with a bottom freezer compartment, you may need to remove the bottom drawer of the refrigerator compartment to access the drainage chute.
☑️ Preparing to clean the drain
Step-by-step instructions: how to clean the drainage mechanically
Mechanical cleaning is the most effective method of removing dense plugs from food waste. After defrosting the compartment (if it was covered in ice) and removing all food, locate the hole in the center of the back wall, at the bottom of the refrigerator compartment. It is usually round and leads inside the body.
Take the prepared soft wire or brush. Carefully insert the tool into the hole, being careful not to apply excessive force. The movements should be progressive and rotational, as if you were clearing a clog in the sink, but with less pressure. Your goal is to crumble the plug and push it deeper into the system.
⚠️ Attention: It is strictly forbidden to use stiff wire with sharp edges. Damage to the inner tube of the evaporator will lead to a freon leak and complex, expensive repairs.
After you feel that the permeability has been restored, it is necessary to remove the remaining contamination outside. To do this, you can use tweezers with long jaws or a wire hook. Make sure that there are no large pieces of food left in the canal, which could cause a blockage again after a few days.
What to do if the wire does not go through?
If mechanical cleaning does not help, the plug may be deep in the bend of the tube. In this case, try using the blowing or pressure washing method described in the following sections. Do not try to pierce the blockage by force, this may dislodge the tube inside the housing.
Rinsing and disinfection of the moisture removal system
After mechanical removal of the bulk of the contaminants, it is necessary to thoroughly rinse the channel. This will help remove residual grease and bacterial plaque, which often causes unpleasant odors. Fill a syringe or rubber bulb with warm water with a small amount of mild detergent added.
Insert the nozzle of the syringe close to the hole and press sharply but gently on the plunger. Water should flow freely inside and flow into a special container (bath) located above the compressor at the back of the refrigerator (bottom). If the water is in the hole and does not go away, repeat the procedure several times; perhaps the plug has not yet been completely removed.
For disinfection, you can use a weak solution of soda or special means for washing refrigerators. Pour the solution into the canal, leave for 10-15 minutes, and then rinse with clean water. This will kill mold spores that could have settled in a damp environment.
There is a table of problems and methods for solving them that will help diagnose the condition of the drainage:
| Symptom | Probable cause | Elimination method |
|---|---|---|
| Water stands in the groove | Dense plug from food | Mechanical cleaning with a brush |
| Water leaves slowly | Grease deposits on the walls | Washing with hot water and soda |
| Ice in the hole | Faulty defrost sensor | Defrost (12+ hours) and checking the sensor |
| Unpleasant odor | Bacteria in the drainage | Disinfection with an antiseptic |
Features of cleaning refrigerators with the No system Frost
Owners of units with the system No Frost are often surprised to find water inside, because there should be no condensation there. However, in such models, the drainage hole is located hidden, often behind the back panel inside the chamber, or leads to the evaporator, where an ice plug can also form.
If your Bosch or Samsung c No Frost water is flowing, first check to see if the drainage in your freezer. Often ice slush blocks the flow of melt water from the evaporator. In this case, the refrigerator must be completely defrosted with the refrigerator turned off for at least 24 hours.
Access to the drain hole in the systems No Frost may require removing the plastic back panel inside the refrigerator compartment. Be careful when removing the fasteners, the plastic becomes brittle in the cold. After removing the panel, clean the channel in the same way as described above, using a soft brush.
Prevention of blockages and proper care of the refrigerator
To prevent the question “how to clean the drainage hole” from arising too often, you should follow simple operating rules. First of all, this concerns the packaging of products. Liquid foods, open canned food and juicy fruits should be stored in closed containers.
Wipe the back wall of the refrigerator regularly with a damp cloth. This will remove sticky deposits that can slide down into the drain over time. Also make sure that the products do not touch the back wall, as this disrupts air circulation and promotes the formation of excess condensation.
- 🥦 Pack all products in containers or bags.
- 🧽 Wipe the drainage area with an antiseptic every 3 months.
- ❄️ Do not place hot foods inside the chamber.
- 🔍 Check the integrity of the sealing rubber bands.
Following these recommendations will keep drainage system in working condition for years. Remember that regular prevention takes less time than eliminating the consequences of a flood and repairing equipment.
Can I use a cable to clean the drainage?
Using a plumbing cable is strictly not recommended. It is too rigid and can damage the thin plastic tubes inside the housing or puncture the evaporator. Use only soft brushes or a special wire with a limiter.
Why does water flow along the front wall of the refrigerator?
This may mean that the drainage hole is completely clogged, and there is nowhere for water to drain, so it overflows over the edge of the groove. Also, the reason may be overcrowded trays or tilting the refrigerator forward.
How often should you defrost the refrigerator for prevention?
Even systems No Frost are recommended to be defrosted and washed once every 6-12 months. Conventional refrigerators require defrosting as ice forms, but at least once a year for hygienic treatment.
What to do if after cleaning the water still does not go away?
Perhaps the plug is too deep in the tube going to the compressor. Try blowing out the canal (carefully!) or using a pressurized hot water syringe. If it doesn’t help, you need to call a technician to disassemble the rear panel.