A perfectly flat floor in old apartments is rather an exception, than the rule. When you buy new household appliances, a natural problem arises: how to install a refrigerator if the surface underneath has a noticeable slope or bumps. Incorrect installation can lead to serious consequences, ranging from loud humming to compressor breakdown.
Many owners ignore this nuance, relying on the fact that “it will do.” However horizontalness hulls are not just a matter of aesthetics. The correct circulation of refrigerant in the system and the tightness of the doors depend on this. If the housing is skewed, the oil may not return to the compressor crankcase, which leads to its overheating.
In this article we will analyze all the available methods of compensating for floor unevenness. You will learn how to use adjusting supportscorrectly, when it is worth laying plywood, and in which cases you cannot do without leveling the floor. By following the instructions, you will extend the life of the unit and save yourself from unnecessary noise.
Why it is important to maintain horizontality
The physics of refrigeration equipment directly depends on gravity. The refrigerant moves through the system, changing its state of aggregation, and the oil to lubricate the compressor also relies on gravity to return back to the mechanism. If tilt angle the housing is broken, oil will begin to accumulate in the circuit, causing hydraulic shock upon startup.
In addition, the misalignment affects the operation of the door hinges. Modern models often have a system installed automatic door closer, which is designed for a strictly vertical position. When tilted, the doors stop closing tightly or, on the contrary, open on their own, violating the temperature regime inside the chambers.
What happens to the oil when tilted strongly?
Oil can get into the evaporator circuit, creating an "oil plug". This drastically reduces cooling efficiency and causes the compressor to wear out, trying to push through the system.
Vibration is another critical factor. The uneven contact of the supports to the floor creates resonance. Even a slight misalignment of 2-3 degrees can turn the quiet operation of the engine into a loud roar that will irritate household members. Therefore the maximum permissible angle of deviation from the vertical is 2 degreeswhich is the standard for most manufacturers.
Diagnostics of the surface and identification of distortions
Before grabbing the tools, you need to assess the scale of the problem. It is difficult to visually determine the level of slope of the floor, especially if we are talking about old wooden floors or tiles laid in a wave. For accurate diagnosis, you will need a building level.
Install the device first across the intended installation location, then along. The air bubble must be located strictly between the risks. If it is offset, then the floor has a slope. Also check stability: try rocking an empty refrigerator. If it wobbles, it means that one of the supports does not touch the surface or the floor has a local convexity.
Pay attention to the floor covering. Linoleum or laminate can be soft, and heavy equipment legs will push them down over time, creating an artificial slope. In such cases, it is necessary to place rigid ones under the supports to avoid deformation of the coating and loss of stability. distribution platesto avoid deformation of the coating and loss of stability.
Adjusting the support legs of the refrigerator
The simplest and most common way to compensate for unevenness is to use standard adjusting screws. They are located in the front lower part of the case, often hidden by a decorative panel. To access them, you may need to remove the base or simply look under the bottom of the unit.
The adjustment process is as follows:
- 🔧 Take an adjustable wrench or screwdriver (depending on the type of support) and start unscrewing the front legs, lifting this corner of the case.
- 📏 Constantly monitor the position level bubble, achieving ideal horizontal position.
- 🔒 After adjustment, be sure to tighten lock nutif it is provided for in the design, so that the fixation does not become loose due to vibration.
Some models Samsung or Liebherr equipped with a system where the rear supports are also adjustable, but access to them is possible only after tilting the body. Be careful: do not try to adjust the legs while the refrigerator is completely on the floor under its own weight - this may break the thread.
☑️ Algorithm for adjusting the legs
⚠️ Attention: Never tilt a running refrigerator more than 40 degrees during adjustment. This can lead to oil flow into the cooling system and subsequent breakdown of the compressor.
Use of shims and additional supports
If the standard screw stroke is not enough to compensate for the height difference, you have to resort to external shims. This is true for floors with holes or a significant slope. It is best to use pieces of rubber, thick plywood or special anti-vibration stands as the material.
It is strictly not recommended to use cardboard, fiberboard or soft wood. These materials are hygroscopic and, under the weight of the unit, will quickly wrinkle or get wet from condensation, which will lead to repeated distortion. The ideal option is rubberthat dampens vibrations, or hard plastic.
The table below will help you choose the appropriate material for the lining depending on the type of unevenness:
| Type of unevenness | Recommended material | Lining thickness | Efficiency |
|---|---|---|---|
| Local pit | Rubber washer | 3-5 mm | High |
| General floor slope | Plywood + rubber | 10-20 mm | Medium |
| Slippery tile | Anti-slip mat | 2-3 mm | High |
| Large height difference | Hardwood block | Up to 30 mm | Low (requires fixation) |
When using pads, make sure that they do not protrude beyond the dimensions of the cabinet, so as not to interfere with the opening of doors and not spoil the appearance of the kitchen. If the height difference is too great, you may have to make a stand for the entire refrigerator from a sheet of thick plywood, leveling the sheet itself with wedges.
Elimination of vibration and noise after installation
Even after you managed to level the case, vibrations may persist. This is often due to the floor resonating with the frequency of the compressor. This is a particularly noticeable problem in wooden houses. To solve this, there are special vibration-damping platforms.
Also check the distance to the walls and furniture. If the refrigerator touches a cabinet or wall, the vibration will be transmitted to them, creating a drum effect. The optimal gap should be at least 5 cm on all sides except the back, where more space is required for air circulation.
Sometimes the source of sound is loose elements inside: bottles, cans or egg trays. Make sure that the contents of the shelves do not rattle. If the noise comes from the lower part, it may be necessary to tighten the compressor mounts, but this is already a task for a service engineer.
Features of installing built-in appliances
Installing a built-in refrigerator on an uneven floor is a task of increased complexity. Here the cabinet is hidden by furniture facades, and any distortions can lead to the cabinet doors no longer meeting or opening jerkily. The mechanism of sliders or guides is very sensitive to geometry.
In such cases, it is not so much the refrigerator itself that needs to be leveled, but rather the niche in which it is installed. If the floor is curved, wedges are placed under the furniture frame. Only after the cabinet is installed perfectly straight and rigidly, equipment is placed inside.
⚠️ Attention: The design of built-in models often does not have front adjustable supports, since they rest on the bottom of the niche. Make sure that the floor under the furniture can support the weight of the structure without sagging.
Experts recommend using a laser level when installing a kitchen set. This will allow all cabinets to be placed in a single plane, which is critical for the normal operation of built-in refrigeration equipment. The slightest misalignment of the niche will lead to deformation of the doors of the unit itself.
Common mistakes when installing on curved surfaces
Many users, trying to save time, make mistakes that are subsequently costly. One of the most common is an attempt to level the refrigerator by placing random objects under the legs: newspapers, rags or pieces of linoleum. Over time, such materials are compressed, and the equipment warps again.
Another mistake is ignoring the manufacturer’s instructions. The data sheets of some models clearly indicate that the maximum tilt angle should not exceed certain values. Neglect of these standards may result in refusal of warranty repairs. Bosch or Electrolux it is clearly stated that the maximum inclination angle should not exceed certain values. Failure to comply with these standards may result in denial of warranty repairs.
Is it possible to use polyurethane foam for fixation?
Theoretically, it is possible, but this is a bad idea. The foam crumbles over time and loses its properties, and it will be extremely difficult to dismantle the refrigerator without damaging the floor and body.
Also, you should not rely only on a visual assessment. “It is impossible to determine the horizontal by eye.” Always use measuring instruments. If you doubt your abilities or the floor has a complex configuration (for example, a heated floor with an uneven screed), it is better to call a professional installer.
Is it possible to place a refrigerator on an inclined floor without adjustment?
For a short time - yes, the equipment will work. However, continuous operation will lead to uneven wear on the compressor, problems with closing the doors and possible oil leakage from the system. This will shorten the life of the appliance.
What to do if one leg is broken or lost?
Do not use the refrigerator without support. You can temporarily replace the leg with a wooden block, but it is better to order an original spare part from the manufacturer or select a universal analogue from a hardware store that will fit the thread.
How often should you check the installation level?
It is enough to check the horizontal level immediately after installation and after six months of operation. If the floor is stable and does not “walk”, re-adjustment is rarely required, except when moving or replacing the floor covering.
Does the slope affect energy consumption?
Yes, indirectly. If the doors do not close tightly due to misalignment, cold air escapes, and the compressor is forced to work more often and longer to maintain the set temperature, which increases energy consumption.