The situation when equipment stops performing its direct functions always takes you by surprise, especially if there are perishable products inside. If you notice that the refrigerator does not freeze well, this is a signal about the need for immediate diagnosis in order to prevent complete deterioration of stocks. Often the problem lies not in the most complex electronics, but in banal malfunctions or wear of the seals.
However, the symptoms cannot be ignored: insufficient cooling may be the first sign of a serious breakdown compressor or a refrigerant leak. In this article, we will look in detail at why the unit stopped gaining cold, how to distinguish a temporary failure from a critical malfunction, and what you can do yourself without calling a technician.
The first thing to do is to assess the scale of the problem: is one chamber not freezing or has the temperature increased throughout the entire device? The vector of further actions depends on this. Sometimes it is enough to simply defrost the system No Frost, and in other cases it will be necessary to replace expensive components.
Primary diagnostics: external signs and simple checks
Before disassembling the unit or calling service, conduct a visual inspection. Often the reason why the refrigerator does not freeze enoughlies in obvious things that are easy to overlook. Check the tightness of the door: if the rubber is worn out or dirty, cold air goes out and the compressor runs in vain.
Pay attention to the noise level. If the engine hums constantly and does not turn off, but there is no cold, this is a sure sign that the system cannot reach operating mode. Under normal conditions, the work-rest cycle should be maintained, even if you have just loaded a lot of warm food.
⚠️ Attention: If you smell a burning smell or see sparking in the rear grille area, immediately unplug the appliance. Further operation may lead to fire.
It is also worth checking the thermostat settings. An accidental failure in the electronic control module or careless movement could set the mode to minimum cooling. Make sure that the correct temperature is selected for the current environmental conditions.
Problems with the door seal and tightness
One of the most common reasons why the refrigerator has stopped freezing in the previous mode is depressurization of the chamber. Over time, the rubber seal loses elasticity, cracks or deforms, allowing warm air to enter. This causes the compressor to wear out, trying to compensate for heat inflows.
You can check the tightness with a simple test with a sheet of paper. Clamp the sheet with the door around the perimeter: if it is pulled out without resistance, it means that a gap has formed in this place. Also carefully inspect the rubber itself for microcracks, mold or sticky deposits that interfere with a tight fit.
- 🧼 Clean the seal with warm soapy water to remove the grease film.
- 🔥 Gently warm the deformed areas with a hairdryer and straighten them.
- 🔄 If the rubber is cracked, a complete replacement of the seal will be required.
If after cleaning and straightening the problem does not go away, it is better to order a new part from the manufacturer of your model Indesit, Bosch or LG.
Failures of the No Frost defrosting system
In models with the system No Frost a frequent cause of bad frost is a failure in the defrost cycle. If the evaporator heating element, timer or defrost sensor fails, the ice does not melt, but grows, gradually blocking the ventilation ducts. The air stops circulating, and the cold does not enter the chambers.
Symptoms of such a breakdown appear gradually: first, the refrigerator begins to freeze worse, then a “fur coat” appears on the back wall, and after a couple of days, the food in the upper part begins to deteriorate. In this case, the compressor can operate continuously, since the temperature sensor in the chamber does not record the achievement of the required values.
Diagnostics often require partial disassembly of the rear panel of the freezer. It is necessary to check the integrity of the heating element and the resistance of the sensors. If the heating element is burned out, the defrosting system will not start, and the ice cocoon will only grow.
⚠️ Attention: Do not try to break off the ice with a knife or sharp objects. Damage to the evaporator will lead to an immediate leak of freon and expensive repairs.
If you do not have the skills to work with a multimeter and electrical circuits, it is better not to take risks. Incorrect assembly can lead to damage to plastic elements or disruption of the geometry of the air ducts.
How to check the heating element with a multimeter?
Switch the device to resistance measurement mode (Ohms). Disconnect the wires from the heating element and attach the probes to its contacts. If the screen displays “1” or “OL” (infinity), the heating element has burnt out and requires replacement. The normal resistance of a working heating element is usually from 200 to 600 Ohms.
Refrigerant leak and problems with the compressor
The most serious reason the refrigerator does not get cold is a freon leak or failure of the motor-compressor. The refrigerant circulates through the system, picking up heat. If its quantity decreases due to microcracks in the tubes or corrosion, the cooling efficiency drops critically.
The compressor is the “heart” of the unit. If it (starts), makes a few clicks and stalls, or hums but does not start, the problem may be in the start relay or the windings of the motor itself. In such cases, the equipment requires professional intervention.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Humming, but no cold | Freon leakage / Clog | High |
| Clicks and is silent | Malfunction of the starting relay | Medium |
| Works without stopping | Lack of freon / Wear compressor | High |
| The housing gets very hot | Problems with the capacitor | Medium |
Diagnostics of a leak often requires the use of special equipment, such as a leak detector. It is almost impossible to find the location of the leak on your own, especially if it occurred in the foamed part of the housing or in the evaporator.
The influence of the thermostat and temperature sensors
The thermostat (or electronic temperature sensor) is responsible for turning the compressor on and off. If this element “lies” and shows that it is already cold in the chamber, although in fact it is warm there, the motor simply will not turn on. As a result, the food is defrosted.
In older models with mechanical control, the thermostat can be checked by closing its contacts. If after this procedure the compressor starts working, it means that the regulator is faulty and must be replaced. In modern models with electronic control Display Control diagnosis is carried out through a test mode.
Sensors often fail due to voltage surges or natural aging. If your Samsung or Whirlpool gives an error code related to temperature, most likely the problem is in the sensor chain.
- ❄️ The sensor may show incorrect data when icing.
- ⚡ Power surges in the network often “kill” electronic modules.
- 🔧 Replacing the sensor usually takes no more than 30 minutes.
Do not ignore the flashing indicators on the control panel. This is a direct signal from the self-diagnosis system that one of the components is not working correctly.
Rules for operation and placement of equipment
Sometimes the answer to the question “why the refrigerator began to freeze worse” lies not in the breakdown, but in the operating conditions. If the unit is placed close to a wall or radiators, heat exchange is disrupted. The condenser on the rear wall does not have time to cool down, and the operating efficiency drops.
Loading with food also plays a role. If you fill the chamber to capacity, blocking the air channels, the cold will not circulate. Conversely, in an almost empty refrigerator, the cold “dissipates” faster each time the door is opened.
⚠️ Attention: Never place hot pots inside. This places extreme stress on the compressor and leads to the formation of excess condensation and ice.
Check that the equipment is not in a draft or in direct sunlight. External factors can significantly influence the internal climate. Also make sure that the gap between the back wall and the wall is at least 5-10 cm for normal ventilation.
☑️ Checking the operating conditions
When you need to call a specialist
There are a number of situations when self-repair is not only useless, but also dangerous. If you suspect a freon leak, the system must be evacuated and charged with refrigerant by weight. It is prohibited to work with gas without professional equipment and licenses.
A master is also needed if the problem lies in the “brains” of the refrigerator - the main control module. Reflashing or replacing the board requires accurate diagnostics and the availability of original spare parts. Attempts to “resolder” capacitors at random can completely finish off the electronics.
If after defrosting for 12-24 hours (without connecting to the network) the situation has not changed and the equipment begins to work poorly again, this is a sure sign of a technical malfunction of the internal components.
Do not delay contacting service. Long-term operation of the compressor in emergency mode (for example, if there is a freon leak) leads to its overheating and (ultimately) complete combustion of the engine, which makes repairs economically unfeasible.
How much does the repair cost?
The cost depends on the model and the breakdown. Replacing the thermostat will cost less than refilling with freon or replacing the compressor. The technician will tell you the exact price after on-site diagnostics.
Frequently asked questions (FAQ)
Why does the refrigerator freeze but does not turn off?
Most likely, the seal of the chamber is broken, the thermostat has failed, or a freon leak has occurred. The compressor tries to compensate for the lack of cold by operating in continuous mode.
Is it possible to use a refrigerator if it does not freeze well?
Short-term - yes, but this is a risk for the products and the unit itself. Long-term operation in this mode will lead to overload of the compressor and its breakdown.
How to quickly defrost a refrigerator for testing?
Disconnect the device from the mains, open the doors and leave for at least 12 hours (preferably for a day). You cannot speed up the process with a hairdryer or boiling water - you can damage the plastic and seals.
Why is there ice in the freezer, but warm in the refrigerator?
This is a classic sign of a malfunction of the defrosting system (clogging the air supply channel with ice) or a problem with the fan that does not drive cold air from the freezer to the main one compartment.
Does the quantity of food affect the quality of freezing?
Yes. A full refrigerator keeps the cold better, but requires good air circulation. An empty refrigerator loses temperature faster when the door is opened.