An unpleasant creaking, stiff movement or noticeable distortion of the refrigerator door is not just an irritating factor, but also a direct signal that the mechanism requires your attention. Ignoring such symptoms often leads to the fact that sealing rubber the seal ceases to fit tightly, and the compressor begins to work harder, trying to compensate for the loss of cold. Many owners of household appliances make the fatal mistake of starting to experiment with the first liquids they come across, which ultimately only aggravates the situation.
A properly selected lubricant can extend the life of hinges and moving mechanisms for many years, while maintaining quiet operation. In this article, we will analyze in detail which compositions are suitable for food processing equipment, and which ones you should stay away from so as not to damage plastic and rubber.
We will analyze the technical nuances of servicing various types of loop joints and consider a step-by-step algorithm of actions that will help you eliminate defects yourself without calling a technician. It is important to understand that Liebherr refrigerators, Bosch or Indesit may have design features, but the basic principles of caring for them are universal.
⚠️ Attention: The use of aggressive solvents or oils not intended for plastic can lead to irreversible destruction of the seal structure and the appearance of cracks on decorative trims.
Why do doors creak and how to diagnose the problem
Before grabbing a tube of lubricant, you need to accurately determine the source of the sound. Often users make mistakes with hinges when the problem lies in the friction of the sealing rubber on the body or shelves on the contents. Creaking can occur due to distortion of the door leaf caused by uneven loading of shelves or loosening of fastening bolts.
Diagnostics should begin with a visual inspection and listening in silence. Open and close the door several times, listening carefully to the nature of the sound. If the creaking is metallic in nature and is heard in the fastening area, then the problem is clearly in the rubbing parts of the hinges.
In the case where the sound is more reminiscent of slurping or rustling, most likely, the inside of the seal has dried out or deformed. It is also worth checking whether the door touches protruding parts of the body or adjacent furniture. Sometimes it is enough just to level the refrigerator by tightening the adjusting supports so that the sound disappears. magnetic tape inside the seal. It is also worth checking whether the door touches protruding parts of the body or adjacent furniture. Sometimes it is enough to simply level the refrigerator by tightening the adjusting supports so that the sound disappears.
- 🔊 A metallic squeal when opening indicates a lack of lubrication in the hinges.
- 🧊 A rustling or sticky sound often indicates contamination seal.
- 📉 A dull knock may indicate loose bushings or loose fasteners.
What can be used to lubricate: a review of suitable products
The choice of lubricant is a critically important stage, since the refrigerator is a food equipment. Even if lubricant is applied to the outer hinges, there is a risk of it dripping or splashing into the chamber. Therefore, the priority is the safety and chemical inertness of the composition.
The most effective and safe solution is considered silicone grease. It is odorless, non-toxic, does not cause allergic reactions and, most importantly, does not destroy rubber and plastic. Silicone creates a stable water-repellent film that protects the metal from corrosion, does not freeze at low temperatures and does not dry out over time.
It is also excellent for hinge mechanisms lithium lubricants (for example, white lithium) in aerosol cans with a thin tube. They have excellent penetrating ability and high adhesion, remaining on rubbing surfaces for a long time. However, when using them, special care is required so as not to stain the inner walls of the chamber.
There is a common misconception that WD-40is ideal for these purposes. This statement is erroneous. Classic WD-40 is a water-repellent liquid and a rust solvent, not a lubricant. It evaporates quickly, leaving parts dry, and can wash out the remaining factory lubricant. in the long run, it will only increase the creaking.
Strictly prohibited substances
In pursuit of savings or using “grandmother’s methods,” many try to lubricate refrigerator hinges with substances that are absolutely not suitable for this purpose. The consequences of such care can be disastrous: from the appearance of a persistent unpleasant odor to the destruction of plastic structural elements.
First of all, you should forget about vegetable. oil. It tends to oxidize in air, turning into a sticky, viscous mass similar to drying oil. Over time, this “lubricant” hardens, tightly gluing the parts of the mechanism, and it can only be removed with the help of aggressive chemicals, which is dangerous for plastic.
It is also not recommended to use solid oil i technical petroleum jelly. These substances often have a strong, specific odor that can be absorbed into products stored in the refrigerator. In addition, at low temperatures they can thicken, increasing friction rather than reducing it.
⚠️ Attention: Never use graphite lubricants. Graphite is an electrically conductive material and can cause a short circuit if it comes into contact with electrical contacts if they are located near the loops.
- 🚫 Sunflower and olive oil - oxidize and harden.
- 🚫 Machine oil - has a strong odor and is toxic.
- 🚫 Butter and margarine - quickly spoil and go rancid.
Preparation for maintenance: tools and safety
Quality performance of lubrication work requires preliminary preparation. You should not try to service the mechanism “on the go” while the refrigerator is turned on and filled with food. This is not only inconvenient, but also unsafe for the equipment itself and your health.
The first step should always be turning off the power supply. Unplug the cord from the outlet to eliminate the risk of electric shock, especially if you have to remove decorative panels that may hide wires. Let the equipment stand for 10-15 minutes to stabilize the pressure in the system, if it has just been working.
Next, remove all heavy products, bottles and containers from the shelves attached to the door. door. This will reduce the weight of the structure and make it easier to manipulate the hinges. If the door is a two-chamber refrigerator, it is advisable to release the main chamber as well, in order to be able to completely remove the door if necessary.
☑️ Preparation for lubrication
For work you will need a minimum set of tools: cross and flat screwdrivers, a set of hexagons (often required for removing doors), clean lint-free rags and, in fact, the selected lubricant. Rubber gloves will not be superfluous so as not to get your hands dirty.
Step-by-step instructions: lubrication of hinges and mechanisms
The lubrication process depends on the design of your refrigerator. In modern models, the hinges. often hidden under decorative plastic plugs. Carefully pry them off with a flat screwdriver or knife, being careful not to scratch the surface. In some models, for example Samsung or LG, access to the mechanism may require removing the top panel of the case.
If you decide not to remove the door, but to lubricate the hinges. on weight, act as carefully as possible. Clean the visible part of the hinge and stem from old dirt and oxides with a dry cloth. Then apply a small amount. silicone spray or lithium grease on the rotation axis and in the gaps between the moving elements.
After applying the composition, it is necessary to open and close the door several times so that the lubricant is distributed throughout the entire mechanism. Be sure to remove excess product that comes out with a dry cloth. If the door was removed completely, lubricate the mating parts of the hinges on the refrigerator body.
| Mechanism type | Recommended product | Processing frequency | Features |
|---|---|---|---|
| Open hinges | Silicone spray | Once every 6-12 months | Easy access, prevention possible without removing the door |
| Hidden hinges | Lithium lubricant (tube) | Once every 2-3 years | Partial disassembly of the housing is required |
| Closers (Drop-down) | Specialized lubricant | By as creaking appears | High precision of application, risk of contact with electronics |
| Sliding bushings | Teflon spray | Once a year | Often require removal doors for high-quality processing |
What to do if the creaking remains after lubrication?
If lubrication does not help, perhaps the problem is not friction, but mechanical wear. Check the bushings for play. If the hinge axis is loose in the hole, simple lubrication will not help - you will need to replace the worn part or the entire hinge assembly. Also, a squeak can be produced by a compressor or a vibration of the body transmitted to the door. stick or make slurping sounds.
Caring for sealing rubber
Although the question usually concerns metal hinges, the condition sealant directly affects the tightness and ease of opening the door. The rubber profile also needs care, especially if it begins to stick or make slurping sounds.
The same siliconeis ideal for processing rubber, but in lower concentrations. Wipe the sealant with a damp cloth with a mild detergent to remove grease and dust. After drying, apply a thin layer. silicone lubricant on the entire perimeter of the gum.
This action restores the elasticity of the material, prevents it from drying out and cracking. Regular maintenance of the seal (every 3-4 months) allows you to avoid a situation where the door stops closing tightly and the refrigerator begins to wear out.
Adjusting the position of the door after lubrication
After lubrication work, it is often necessary to adjust the position of the door. If during maintenance you loosened the fastening bolts or removed the door, it could be skewed.
To adjust, use a building level, place it on the upper edge of the door (in the closed state) and check. horizontal. If the door is skewed, loosen the fastening bolts of the hinges, align the position of the door and tighten the fastenings again. In some models, the height is adjusted by rotating the support legs of the refrigerator.
Check the tightness around the entire perimeter. To do this, you can use a sheet of paper: press it between the door and the body at different points. If it falls out, it should be removed. or pulls out too easily, further adjustment is required.
How often do you need to lubricate the hinges of the refrigerator?
Preventive lubrication is recommended to be carried out at least once a year. However, if you notice the appearance of extraneous sounds or a stiff door, treatment should be performed immediately, without waiting for the scheduled date.
Can I use WD-40 Specialist Silicone?
Yes, the WD-40 Specialist series (precisely silicone grease, not the classic “Vedashka”) is suitable for these purposes. It is safe for plastic and rubber and creates the necessary protective film.
What to do if grease gets on it. products?
If food-grade silicone grease was used, the products can simply be wiped with a damp cloth. If technical compounds (lithium, grease) were used, it is better to throw away the products that came into contact with them to avoid poisoning.
Why does the door close or slam on its own?
This may be a sign that the lubricant was selected incorrectly (too liquid) and leaked, or the closer mechanism (if there is one) requires adjustment. Also, the reason may be the incorrect angle of the entire refrigerator.
Is it necessary to completely disassemble the refrigerator?
In 90% of cases, complete disassembly is not required. It is enough to remove the decorative trims from the hinges. mechanisms are needed only when the bushings are seriously worn or the hinges are replaced.