Failure of controls on the refrigerator Indesit is a common problem that equipment owners face after several years of active use. Most often, the buttons stop responding, the display goes dark, or, conversely, the indicators are constantly on, preventing you from adjusting the temperature. In such situations, it is required complete dismantling of the panel to carry out diagnostics or replace failed components.
The process of removing the control module may seem difficult only at first glance, since the design of refrigerators of this brand provides for a fairly logical assembly. However, in order not to damage the fragile plastic and not break the cables, you must clearly understand the sequence of actions and know the location of the hidden latches. In this article we will analyze in detail the procedure for removing the front part of the case, where the electronic unit is located.
It is worth noting that the designs may differ slightly depending on the series of the refrigerator, be it classic Indesit C 138 or more modern models with a display Hotpoint-Ariston. However, the general principle of attaching the top cover and module remains similar. It is important to work carefully and not use excessive force where the parts are held on plastic clamps.
Required tools and safety precautions
Before starting any work with electrical appliances, you must follow basic safety rules, ignoring which can lead to electric shock or damage to the electronics. The first and most important step is complete shutdown of the refrigerator from the electrical network. Pull the plug out of the socket and make sure that access to it is blocked so that no one accidentally turns on the device during your intervention.
To carry out dismantling, you will need a minimum set of tools, which are usually found in every home. The main working tool will be a Phillips screwdriver, preferably with a magnetic tip, as screws can fall into hard-to-reach places. You will also need a flat-head screwdriver or a special plastic tool to opening the latchesso as not to scratch the case.
- 🔧 A Phillips screwdriver (size PH1 or PH2) for unscrewing screws.
- 🛠️ Flat-head screwdriver or pick for carefully prying up plastic clips.
- 🧤 Work gloves to protect your hands from sharp metal edges inside the case.
- 🔦 Flashlight for better illumination of the interior of the top cover.
Pay special attention to organizing your workspace. You will need a free surface near the refrigerator where you can store the fasteners. A lost screw can become a big problem during assembly, since it is not possible to find one that is similar in thread and length. It is recommended to use a magnetic tray or just a small container for all removed parts. quite difficult. It is recommended to use a magnetic tray or just a small container for all removed parts.
☑️ Preparation for dismantling
Removing the top cover of the refrigerator
The control panel in refrigerators Indesit most often integrated into the front part of the upper housing cover. To gain access to it, it is not enough to simply unscrew the visible screws - you need to remove the entire cover. This requires caution, as the plastic becomes more brittle over time and can crack if handled carelessly.
Start by looking for fasteners. They are usually located on top of the lid, sometimes hidden under decorative plugs or rubber feet. On some models, the screws may be located at the back of the top panel, closer to the wall. Carefully inspect the surface, using flashlight if necessary, so as not to miss hidden fasteners.
⚠️ Attention: The plastic of old refrigerators may be dry. Before applying force to remove the cover, lightly heat the problem areas with a hairdryer (at a minimum temperature) to make the material more elastic and avoid cracks.
After all the screws are unscrewed, there is no need to pull the cover up. It is held on by guides and latches on the sides. Gently pull the cover forward to release the rear hooks from the grooves, and then lift it up. Inside you will see a metal frame, insulation and, in fact, the reverse side of the control module.
What to do if the cover cannot be removed?
If the cover does not budge after unscrewing all the screws, do not use force. Check to see if you have forgotten to remove the screws at the back that may secure the cover to the main frame of the refrigerator. Sometimes it is necessary to remove the rear metal panel of the case to access additional fasteners.
Disconnecting electrical connections and cables
When the top cover is removed and turned over, the electronic filling is revealed to your view. Here it is important to take your time and carefully study how exactly it is connected control unit to the other systems of the refrigerator. The main connections are usually represented by connectors with wires going to the compressor, temperature sensors and lighting.
Before disconnecting the wires, it is strongly recommended to photograph the original position of all connectors. This will help avoid mistakes during reassembly when the color coding of the wires may not be obvious. Connectors may have different types of latches: some snap off by pressing the tongue, others require gentle rocking from side to side.
| Connector type | Disconnection method | Risks |
|---|---|---|
| Plastic with tongue | Press the latch and pull | Break the thin plastic latch |
| Tight plug | Swing left and right, pull the body | Tear off the wires at the base |
| Flat cable | Fold back the fixing frame or pull the ears | Damage the contact track of the cable |
They deserve special attention loops, which are often used to connect buttons to the main board. They are very thin and tear easily. If the cable connector is clamped in a plastic retainer, you must first bend it upward and only then remove the cable itself. Never pull on the wires themselves - only on the plastic part of the connector.
Removing the control module from the case
After disconnecting all communications, the control module is still attached to the plastic base of the cover. Attachment can be accomplished using screws, plastic clips, or a combination of these methods. In most models Indesit the board is screwed with two or four screws to plastic stands.
If you see screws, carefully unscrew them, trying not to drop them deep into the refrigerator body. If there are no screws, then the board is held on by latches. In this case, you need to carefully examine the perimeter of the board and find places where the plastic of the case forms hooks. Gently press them with a flat screwdriver while lifting the board.
Sometimes the module can be additionally secured with glue or sealant, especially if the refrigerator has previously been repaired. In this case, extreme caution is required. Pry the board evenly in different places so as not to break textolite base. Sudden movement can lead to microcracks on the board, which subsequently cause short circuits.
⚠️ Attention: Static electricity is dangerous for electronics. Before touching the contacts of the board or microcircuits, touch any grounded metal surface (for example, a battery or refrigerator case) to remove static charge from the body.
Diagnostics and replacement of buttons
After removing the module, it becomes possible to conduct a visual inspection and diagnostics. A common cause of malfunction is oxidized contacts under the buttons or swollen capacitors. If no visual defects are found, the problem may lie in the membrane buttonsmembrane buttons themselves, which lose conductivity over time.
To replace the buttons, it is not necessary to buy a new module entirely. You can purchase a repair kit of buttons for a specific model Indesit and re-solder them. This requires a soldering iron, flux and solder. The old buttons are carefully desoldered, the area is cleaned, and new elements are installed in their place. It is important to observe the polarity if it is indicated on the diagram, although for buttons this is most often not critical.
In cases where the processor itself or other elements on the board have burned out, repairs at home become economically impractical. It’s easier to order a new control unit assembled one. When installing a new module, make sure that the firmware is compatible, although in most cases for refrigerators Indesit blocks are interchangeable within the same series.
Assembly and performance testing
The final stage is reverse assembly. Reinstall the control module using screws or latches. Check that the board lies flat and does not touch any metal parts of the case, which could cause a short circuit. Connect all the cables and connectors, focusing on the photographs taken earlier or the markings marking.
Make sure that all the wires are laid in the channels intended for them and will not be pinched when installing the cover. The protruding wire may be pinched by the plastic, which will lead to an open circuit immediately after switching on. Carefully place the top cover onto the body, snapping the side clamps into place, and tighten all the fastening screws.
Only after complete mechanical assembly can you turn on the refrigerator. Pay attention to the indicators: they should light up normally. Check the operation of each button, changes in temperature conditions and the absence of extraneous sounds. If everything functions correctly, you can load the refrigerator with products.
What to do if after assembly the refrigerator does not turn on?
First of all, check whether all connectors are fully inserted. Often the plug appears connected but does not make contact. Also check the continuity of the fuse on the board, if available. If everything is visually in order, it is possible that the cable or the board itself was damaged during assembly.
Can the control panel be washed with water?
It is strictly not recommended to wet the control panel, especially when disassembled. Moisture that gets under the buttons or on the board contacts will cause corrosion and short circuits. Cleaning should be done with a slightly damp, well-wrung out cloth without using aggressive chemicals.
Where can I find a refrigerator model to order spare parts?
The model and serial number are usually indicated on a sticker inside the refrigerator compartment (on the side wall) or on the back wall of the case. Look for a code starting with letters, for example Indesit C 138 G. This code is necessary to select a compatible control module.