The sudden extinguishing of a light bulb inside the refrigerator compartment is often perceived as a minor household nuisance, but for equipment Pozis this may signal a more deep problem with the electrical circuit. If replacing the lamp itself with a new one does not bring any results, then the fault lies in the switch button or wiring contacts. Owners of refrigerators of this brand often encounter oxidation of contacts or mechanical wear of the plastic button pusher.
Independently replacing the light switch in the refrigerator Posis is a completely solvable task for a person who has basic skills in handling tools. You do not need complex equipment, just a standard set of household tools and a basic understanding of the principles of operation of electrical circuits. It is important to understand that ignoring a breakdown can lead to the light inside the chamber being constantly on, causing overheating of the products and increasing the load on the cooling system.
In this article we will analyze in detail the algorithm of actions that will allow you to safely remove the old element and install a working analogue. We will look at the design features of lampshades in various models Position, methods for diagnosing faults and the nuances of choosing components. Compliance with safety precautions when working with electrical appliances is priority number one, so the process begins with completely de-energizing the device.
Diagnostics of the malfunction and finding the cause
Before you start disassembling the case, you need to make sure that the problem is in the switch and not in a burnt-out lamp or wire break. First of all, check the integrity of the filament in the light bulb or try inserting a known-good lamp of the same rating into the socket. If the new lamp also does not light up when the door is opened, proceed to checking the switching mechanism itself.
The switch in refrigerators Posis is usually located in the upper part of the chamber, next to the lampshade or directly in its structure. When the door is open, the button is depressed, opening the circuit, and when closed, the spring returns it to its original position, closing the contacts. If when you press the button with your finger (simulating closing the door) the light does not light up, most likely the contacts inside the button have burned out or the supply wire has broken.
- 🔍 Visually inspect the button for melting, blackening or mechanical damage to the housing.
- ⚡ Check the voltage at the button contacts using a multimeter in dial mode (after disconnecting the refrigerator from the network!).
- 🧊 Make sure that the refrigerator door fits tightly to the body and correctly presses the switch pusher.
Often owners lose sight of the condition of the wires that go to the lampshade. In older models Posis the insulation of the wires could dry out due to time and temperature changes, which leads to a short circuit or oxidation of the contacts. If you find blackening on the contacts of the button, this is a sure sign that a current with high resistance passed through them, causing heating.
Necessary tools and workplace preparation
To successfully carry out repair work, you will need to prepare a workplace and the necessary tools. Repairing electrical appliances requires cleanliness and good lighting, as small parts and wires can easily get lost or be damaged by careless movement. Clear the space in front of the refrigerator in advance to have free access to the top of the chamber.
The basic set of tools includes Phillips and flat-head screwdrivers, pliers, and a multimeter for checking electrical circuits. In some models Pozis to remove the lampshade, you may need special keys or thin metal spatulas to carefully pry the latches without damaging the plastic. It would also be a good idea to prepare electrical tape or heat-shrink tubing to insulate the connections.
☑️ Preparation for repair
Pay special attention to finding a spare part. Switches for refrigerators Position may differ in the geometry of the body, the length of the rod and the location of the contacts. It is recommended to remove the faulty button and go to the store with it to find an exact analogue. Universal switches may not fit the seat or have a different electrical circuit.
| Tool | Purpose | Requirements |
|---|---|---|
| Multimeter | Checking circuit integrity | Continuity mode |
| Flat screwdriver | Removing the lampshade and latches | Thin tip |
| Pliers | Bending contacts, fixing | Dielectric handles |
| Knife | Stripping wires | Sharp blade |
Do not forget about personal safety. Although the voltage in a household network of 220 volts is dangerous, in this case we are working with a de-energized device, but there is a risk of accidental switching on. Therefore, the rule “unplug the plug from the socket” is an iron law before starting any manipulations with the insides of the refrigerator.
Removing the lampshade and the old switch
The dismantling process begins with removing the protective lampshade that hides the lamp and electrical connections. In refrigerators Position the lampshade can be secured with latches or screwed on. If the screws are not visible, they may be hidden under decorative plugs or located on the side of the door. Gently press on the bottom of the lampshade or pry it up with a flat screwdriver, being careful not to damage the plastic clips.
⚠️ Attention: Plastic in old refrigerators becomes brittle from the cold. Before removing the lampshade, let the refrigerator stand with the door open for 10-15 minutes so that the plastic warms up and becomes more elastic.
After removing the lampshade, you will have access to the lamp socket and switch. Depending on the model Position, the switch can be integrated into the lamp housing, mounted separately on the chamber wall, or be part of a single lighting unit. If the button is built into the lampshade, you will have to remove the entire assembly. Disconnect the wires going to the switch. They can be fixed with terminals, soldered, or simply twisted and insulated.
When disconnecting the wires, be sure to remember or photograph the connection diagram. By mixing up the contacts, you can cause a short circuit when you turn on the device. In most cases, the circuit is simple: one wire goes from the network (via a thermostat or directly), the other to the lamp. However, in complex models with electronic control there may be nuances.
If the switch is stuck to the body due to condensation or time, do not use excessive force. Gently heat the mounting area with a hairdryer (not too hot air) or use a penetrating lubricant if the design allows. The main thing is not to split the internal plastic panel of the refrigerator compartment, the restoration of which will cost more than replacing the button.
Installation of a new switch and assembly
Installation of a new switch is carried out in the reverse order of dismantling. If the geometry of the new button differs from the original one, minor modifications to the footprint or the use of transition elements may be required. Make sure that the button stem moves freely and does not get stuck in the refrigerator wall. If necessary, you can slightly widen the hole with a drill, being careful not to damage hidden communications.
Connecting wires requires reliable contact. If the old twist has oxidized, strip the ends of the wires to a shine and reconnect them using terminal blocks or high-quality soldering. Twisting under conditions of vibration and temperature changes is an unreliable method that is best avoided. After connecting, check that the wires are securely fastened so that they do not dangle or touch moving parts or heating elements.
Install the lampshade into place, making sure that all the latches are in place with a characteristic click. Do not use excessive force when installing plastic parts. If the lamp does not stand up, check whether the wires are laid correctly and whether anything is interfering with the installation. A loosely closed lampshade can cause the formation of condensation and ice in the lighting area.
What to do if the new button does not fit in size?
If the new button has a different body diameter, you can carefully drill a hole in the plastic or use an adapter sleeve. The main thing is that the button sits tightly and does not dangle, otherwise it will constantly stick or, conversely, not be pressed.
After assembling all the elements, you can proceed to testing. Plug in the refrigerator and check the lighting. Open the door - the light should go out (the button is pressed), close it - it should light up. If everything works correctly, leave the refrigerator running in idle mode for a while, monitoring the absence of extraneous odors or sounds from the repair area.
Replacement features in models with electronic control
Modern models of refrigerators Posis can be equipped with an electronic control system, where the light switch is part of a complex circuit. In such devices, the button can transmit a signal to the main controller, rather than simply breaking the lamp power circuit. Replacing the switch in such models requires more caution and, possibly, special diagnostics.
If, after replacing the mechanical button, the light in the refrigerator with electronics does not work, the problem may lie in the control board or the door open sensor, which may be magnetic (reed switch) rather than mechanical. In this case, simply replacing the button will not help, and the intervention of a specialist with diagnostic equipment will be required.
- 📟 Check whether the lighting function is blocked by the "Vacation" or "Demo" mode.
- 🔌 Make sure that the wire connectors fit tightly in the control board sockets.
- 🧊 Pay attention to integrity magnet in the door if a reed switch sensor is used.
⚠️ Attention: In models with electronic control, it is not recommended to experiment with closing the contacts “directly”, as this can lead to burning out the expensive controller board.
It is also worth considering that some advanced models use LED backlighting instead of incandescent lamps. In such systems, the switch can be integrated into the LED block, and the entire lighting module is replaced. This simplifies the repair, but requires searching for a specific spare part for your model Pozis.
Frequent errors and precautions
One of the most common mistakes during self-repair is ignoring the condition of the wire insulation. Even a new button will not work if the wire is broken or the insulation is broken. Always carefully inspect all visible wiring. In addition, many people forget to check the lamp itself, relying on its visual integrity, although the filament may be broken unnoticed.
Using switches that are not suitable for current or voltage is another mistake. The switch in the refrigerator must withstand the current consumed by the lamp with a margin. Installing a button that is too weak will lead to its rapid burnout and possible fire. Always look at the markings on the body of the part.
Do not forget about cleanliness in the repair area. Crumbs, dust and moisture trapped inside the button mechanism or on the contacts can ruin all your efforts. Wipe the installation area with a dry cloth before installing the new part. Also avoid getting grease on plastic parts, as some types of plastic can be destroyed by aggressive substances.
In conclusion, it is worth noting that regular maintenance of the refrigerator Position extends its service life. Periodically check the tightness of the door and the condition of the seals, since this determines the frequency at which the light switch operates. If the door is skewed, the button may not be pressed or, on the contrary, may be constantly clamped, which reduces its resource.
Is it possible to use a switch from another brand of refrigerator?
The use of analogues is possible if the mounting dimensions, rod length and electrical parameters (current, voltage) match. However, it is better to look for original spare parts or proven analogues specifically designed for refrigeration equipment.
Why is the light in the refrigerator blinking?
Flashing light may indicate poor contact in the lamp socket, oxidation of the switch contacts or unstable voltage in the network. This may also be a sign that the lamp will soon fail.
How often should you change the light switch?
The light switch does not have a specific service life and is replaced only when it breaks. Under normal use, it can last for decades, but frequent door slamming or moisture can shorten its life.
Is it safe to leave the refrigerator on when replacing the button?
Absolutely not. All work on replacing electrical components must only be carried out with the device completely disconnected from the network. This safety rule must not be violated.