It would seem that it could be easier than installing a new unit on the floor? However, professionals know: it is incorrect installation that causes 80% of compressor breakdowns and the appearance of an annoying hum in the first months of operation. Level setting this is not just an aesthetic whim, but a critical technical process that affects the tightness of the doors and the circulation of the refrigerant.
If you We noticed that the door opens on its own or, on the contrary, does not fit tightly to the body, and the compressor is overloaded, which means that the equipment is crooked. In this article, we will analyze the physical principle of operation of the supports and give a clear algorithm of actions that will help avoid expensive repairs.
The correct horizon base ensures that the oil in the compressor will return to the crankcase and not stagnate in the circuit tubes. Ignoring this installation stage can lead to rapid failure of the motor-compressor.
Why tilting back is more important than an ideal horizon
Many owners make the classic mistake of achieving an absolutely ideal horizontal position of the body in all planes. This is technically incorrect for most models of household appliances. Gravity closer —this is the name of the mechanism that causes the door to close on its own—works only at a certain angle of inclination.
The body should be slightly tilted back, about 1-2 degrees. This creates a physical condition in which the center of gravity of the open door shifts, and it smoothly moves into the closed position. If this is not done, you will encounter the fact that the door will be constantly ajar, which will lead to ice freezing and excessive energy consumption.
⚠️ Attention: If the door of your refrigerator does not close on its own when opened to 45 degrees, it means that the front legs are twisted too high or the rear legs are not lowered enough.
In addition In addition, the correct tilt ensures uniform distribution of the load on sealing rubber bands. When the lower part of the seal falls forward, it experiences excess pressure, losing elasticity, and the upper part, on the contrary, moves away, allowing warm air to pass through.
Necessary tools and preparation of the place
Before you start making adjustments, you need to prepare the workspace. You will need access to the bottom of the unit from all sides. Remove all foreign objects, carpets and baseboards that may interfere with the free movement of equipment.
For a quality installation, you will need the following tools: a construction bubble level (preferably at least 40 cm long), an adjustable wrench or a set of open-end wrenches, and a flat-head screwdriver. In some models Bosch or Siemens a special plastic wrench included in the kit is used for adjustment.
- 📏 The building level is the main tool for checking the horizon.
- 🔧 Adjustable wrench - necessary if the lock nuts are too tight tightened.
- 🧹 Rags and a vacuum cleaner - for cleaning the floor under the future installation area.
- 🔦 Flashlight - for better visual control of the gap between the leg and the floor.
It is important to check the condition of the floor covering. If you have soft linoleum or carpet, it is better to place hard plastic or metal plates under the supports. This will prevent the coating from being pressed through and will remain stable for many years.
Step-by-step instructions: adjusting the support legs
The adjustment process begins with assessing the current position. Place the refrigerator in the intended location, but do not move it close to the wall yet. Leave a gap of at least 10-15 cm for access to the back and side edges.
First we work with the front supports. They are usually adjustable screws. By rotating them clockwise, you raise the angle, counterclockwise, you lower it. Your task is to ensure that the front part is slightly higher than the rear.
☑️ Adjustment algorithm
After the initial setup, you need to record the result. There is often lock nuton the screw thread. It must be screwed tightly to the base of the housing so that the vibration of the compressor does not unscrew the adjusting screw over time. If there is no lock nut, make sure the screw is tightened tightly enough.
The back of the equipment is often equipped with wheels or fixed supports. If there are wheels, they should be lowered until they touch the floor, but not overloaded, so that the main weight still falls on the front adjustable screws. This will ensure stability.
⚠️ Warning: Never attempt to adjust the legs without lifting the appropriate corner of the refrigerator. Rotation under full load can break the thread of the plastic bushing.
For models with the system No Frost it is especially important to avoid distortions to the left or right, as this can disrupt the outflow of condensate from the drainage system, which will lead to the appearance of a puddle under the unit.
Table: Typical problems and methods for their elimination
Even if you follow the instructions, nuances may arise depending on the specific model or condition of the floor. Below is a table that helps diagnose the problem by external signs.
| Symptom | Probable cause | Solution method |
|---|---|---|
| The door opens itself | Insufficient tilt back | Unscrew the front legs or lower the rear ones |
| Strong vibration of the body | One of the legs does not touch the floor | Tighten the supports until they are in tight contact |
| The doors are skewed vertically | Different heights of the left and right corners | Align level, checking the transverse plane |
| Difficult to close the door | Too large angle of inclination back | Lower the front supports a little |
Use this table as a checklist for the final check. Remember that stability is the main criterion for a successful installation. Rock the refrigerator from corner to corner: it should stand solidly, without play or wobble.
The influence of level on compressor operation and noise
Why is the refrigerator humming? Often the reason lies precisely in the geometry of the installation. A compressor is a motor with rotating and reciprocating elements. If the case is skewed, the internal mechanisms experience uneven load, which increases vibration.
The vibration is transmitted to the case and resonates with it, creating an unpleasant hum. A correctly leveled device operates quieter, since vibration is damped by the shock absorbers of the compressor suspension, and is not transmitted to the metal walls.
In addition, in systems with a dry lock (No Frost), the fan is also sensitive to distortions. If the engine axis is skewed, the bearings wear out faster, and after a year or two you will hear a characteristic whistle or crack. Height adjustment extends the life of the bearings.
Why can’t you put the refrigerator on a carpet?
Soft covering (carpet, long pile) wrinkles over time under the weight of the legs. This violates the set level. Use a rigid backing made of plywood or plastic if the carpet cannot be removed.
It is also worth mentioning the refrigerant. Although modern freons are not as position sensitive as older ones, the oil in the compressor must return by gravity. If tilted strongly to the side, the oil may remain in the circuit, causing oil starvation of the engine.
Features of installing built-in appliances
Installation of a built-in refrigerator has its own specifics. Here you cannot freely adjust the tilt, since the technique is limited by the dimensions of the kitchen box. However, the level requirements remain the same.
In this case, adjustment is made through the kitchen plinth or special screws in the upper part of the niche. It is important that the front door attached to the refrigerator does not create pressure on the hinges. The weight of the facade can be significant, and if the refrigerator is not level, the hinges will quickly become loose.
When installing in a niche, make sure that the clearances for ventilation specified in the instructions (usually on the sides and top) are strictly observed. Violation of heat exchange due to the tight fit of the cabinet walls will lead to overheating and frequent starts of the compressor.
⚠️ Attention: Technical requirements for clearances and ventilation may differ from one manufacturer to another. Always check the official manual for a specific model before installing it into furniture.
For built-in models Liebherr or Electrolux a special mounting profile is often required. Make sure that it is installed level, as it serves as the base for the entire unit.
Frequently asked questions (FAQ)
Is it possible to install a refrigerator without level "by eye"?
Theoretically it is possible, but the risk of error is high. The human eye is difficult to detect differences of 1-2 degrees, which are critical for the operation of doors. It’s better to spend 5 minutes searching for a level than to struggle with opening the door for years.
What to do if the floor in the kitchen has a strong slope?
If the height difference is large, the adjusting screws may not be enough. In this case, a strong, non-deformable plate (a piece of linoleum folded several times, or a plastic shim plate) must be placed under one of the legs.
Do I need to wait time after installation before turning it on?
Yes, this is necessary. If the refrigerator was transported lying down or tilted strongly when skidding, the oil needs time (from 2 to 4 hours) to drain into the compressor crankcase. Switching on ahead of time can lead to water hammer.
How often should you check the level?
It is enough to check once after installation and after six months. Over time, the legs may “sink” a little into the soft floor covering or weaken from vibration. A preventative check once a year will not hurt.