Owners of household appliances are often faced with a situation when a loved one Indesit refrigerator suddenly stops freezes or starts making strange sounds. Instead of calling a specialist, many people prefer to figure out the problem on their own, which is quite possible if you have basic skills and tools. Modern models, such as Indesit C 132 G or Indesit DF 5180 W, have a fairly simple design that allows you to diagnose the main components without complex equipment.
The first thing that needs to be done before starting any work is to completely disconnect the unit from the power supply. Safety above all else, because electric current is invisible and deadly. After defrosting the chambers for 10-12 hours, you can begin visually assessing the condition of the internal components and troubleshooting.
In this article we will analyze in detail typical breakdowns, methods for eliminating them and the necessary tools. You will learn how to check thermostat, replace start relay or clean the drainage system. It is important to understand that the complexity of the repair directly depends on the type of compressor and control system (mechanical or electronic).
Diagnostics of the main malfunctions of Indesit refrigerators
Before disassembling the unit, you need to clearly identify the symptoms. Refrigeration equipment Indesit most often fails according to predictable scenarios. If the compressor hums but does not start, or, conversely, works without stopping, the reasons may be diametrically opposite.
Particular attention should be paid to the behavior of the motor-compressor. This is the heart of your refrigerator, and its condition is critical for the operation of the entire system. If you hear a click, followed by a hum, and after a few seconds another click and silence, the problem most likely lies in the start relay or the compressor itself.
⚠️ Attention: If the compressor housing has heated up to a temperature above 60-70 degrees Celsius, further attempts to start without professional diagnostics can lead to the final failure of the unit.
Diagnostics should start with simple things: checking the tightness of the door, the condition of the seal and the presence of foreign objects that interfere with air circulation. Users often forget that incorrect operation leads to 30% of all breakdowns.
Replacing the thermostat and checking the automation
One of the most common reasons why Indesit refrigerator stops turning off or, conversely, does not turn on, is a failure of the thermostat. This component is responsible for maintaining the set temperature inside the chambers. In models with mechanical control, for example Indesit DS 320, it is a simple switch with a capillary tube.
To check, you need to remove the plastic cover covering the thermostat (usually it is located inside the refrigerator compartment or on the top panel). After disconnecting the wires, you need to short them together (being careful). If after connecting the compressor to the network, it means that the problem is in thermostat.
The replacement process does not require soldering or special skills, if you act carefully:
- 🛠️ Take a photo of the wire connection diagram before disconnecting, so as not to mix up the contacts during assembly.
- ❄️ Carefully remove the sensitive capillary tube from the evaporator, being careful not to damage its thin walls.
- 🔧 Install a new thermostat with similar markings, since the temperature ranges for different models may differ.
Failure of this unit can lead to fouling of the evaporator ice and cooling stops.
Where can I find the thermostat markings?
The markings are usually applied to the metal body of the thermostat. Look for a code like K59, K50 or TAM. The first two numbers often indicate the temperature range, and the last one indicates the length of the capillary tube. When purchasing a new part, be sure to check these parameters.
Repair of the defrost system in No Frost models
If your Indesit is equipped with a No Frost system, but ice has begun to accumulate in the freezer compartment, and a “fur coat” has appeared on the back wall of the refrigerator compartment, then the defrost cycle is broken. The system consists of three main elements: a heating element, a defrost sensor and a timer (or electronic module).
Most often the fuse itself fails. To check, you need to get to the evaporator by removing the back panel in the freezer. Visually inspect the heating element for ruptures in the spiral or swelling. Defrost heating element or fuse. To check, you need to get to the evaporator by removing the back panel in the freezer. Visually inspect the heating element for breaks in the coil or swelling.
Check the integrity of the heating element and fuse using a multimeter in resistance measurement mode:
- 🔌 Turn off the power to the refrigerator and remove the connectors from the contacts of the heating element.
- 📉 Measure the resistance: a working heating element should show a value in the range from 200 to 500 Ohms (depending on the power).
- 🔥 The fuse should “ring” like zero if it is intact. An open circuit indicates the need for replacement.
It is also worth checking the defrost sensor. Unlike a heating element, it does not have its own resistance in the normal state, but changes it depending on the temperature. However, most often it simply “breaks” and the control circuit does not receive a signal that defrosting is complete.
☑️ Diagnostics of the No Frost system
Replacing the start relay and diagnosing the compressor
Situation, when Indesit refrigerator it buzzes but does not start, it often indicates a faulty start relay. This small unit, mounted on the side of the compressor, provides the initial impulse to start the engine. Older models use relays with a posistor, while new ones use an electromagnetic operating principle.
Replacing a relay is one of the simplest operations. After removing the protective cover at the back of the refrigerator, disconnect the wires and remove the relay from the compressor contacts. Shake it: if a ringing sound is heard inside (as if from broken glass), it means that the posistor or contacts are damaged and require replacement.
When choosing a new spare part, be guided by the following compatibility table for popular models:
| Relay model | Compressor type | Power, W | Compatibility |
|---|---|---|---|
| PTC 15-50 | Asynchronous | 1/5 - 1/4 HP | Indesit C 132, DS 320 |
| R600a | Inverter | 100-140 | Indesit DF 5180, QS 60 |
| RT-12 | Asynchronous | 1/3 HP | Old models Indesit |
| 35C22 | Universal | 1/4 - 1/3 HP | Most models |
If after replacing the relay the problem persists, and the compressor emits a dull hum and gets very hot when trying to start, it is possible that the windings have become turn-to-turn short circuit jammed or the piston group has become jammed. In this case, repair at home is impossible - the compressor must be replaced with evacuation of the system.
⚠️ Attention: Never try to start a faulty compressor directly, bypassing the protective relays. This is guaranteed to lead to burning of the windings and expensive repairs with replacement of the entire circuit.
Eliminating problems with the drainage system and leaks
The appearance of a puddle of water under the refrigerator or inside the chamber is a common complaint from owners Indesit. In models with a drip defrosting system, water flows down the back wall into the drainage hole. If it is clogged with food crumbs or mold, water begins to overflow and flow out.
To clean the canal, you can use a soft wire or a special brush. Carefully insert the tool into the hole (located at the bottom of the rear wall of the refrigerator) and make several rotational movements. After this, pour 50-100 ml of warm water into the channel to wash away any remaining dirt.
In No Frost models, the drainage is located in the pan above the compressor. If water drips from the freezer, the drainage channel itself may be frozen. In this case, you will need to defrost the refrigerator within a day without turning it on.
Main causes of leaks:
- 🚰 Clogged drainage hole (the most common cause).
- ❄️ Freezing of the drainage hose in the freezer.
- 🌡️ Incorrect installation: if the refrigerator is tilted forward, the water does not go into the drainage.
When you need to call a professional technician
Despite the desire to save money, there are situations when independent repair not only will not help, but will also do harm. Freon leakage is one such problem. If you find oily stains on the refrigerator tubes or hear hissing, it means that the tightness of the circuit is broken.
To eliminate a leak you need to:
- Find the location of the damage (often these are hidden areas of the foamed circuit).
- Solder tube or replace the section.
- Evacuate the system with a special pump.
- Fill the refrigerator with the exact amount of refrigerant (R600a or R134a).
Without special equipment and a license to work with freons, these actions cannot be performed. You should also contact professionals if the electronic control module malfunctions if you do not have the skills to solder microcircuits and read electrical circuits.
Remember that breaking factory seals or carelessly tampering with the cooling system may deprive you of the right to warranty maintenanceif the warranty period has not yet expired.
Why does the Indesit refrigerator work, but does not freeze?
Most often this is due to a freon leak, a compressor malfunction, or a clogged capillary. Also, the reason may be a breakdown of the thermostat, which simply does not give the command to cool. Diagnostics of the pressure in the system is required.
How often do you need to defrost the Indesit No Frost refrigerator?
The No Frost system does not require regular defrosting to remove ice. However, manufacturers recommend turning off the refrigerator once a year (or when it gets dirty), washing it and drying it for hygiene and odor prevention.
Is it possible to replace the compressor with an analogue from another company?
Yes, it is possible if the mounting dimensions, power, type of refrigerant and electrical characteristics are the same. However, it is better to use original Indesit spare parts or proven analogues from Danfoss/Secop for durability.
What does a flashing temperature indicator mean?
Flashing usually indicates an increase in the temperature in the chamber above normal. This may be due to recent loading of food, a door that is not closed properly, or a serious problem with the cooling system. If after 2-3 hours it lights up constantly, diagnostics are needed.