Replacing the thermostat in an Indesit refrigerator: instructions with photos and nuances

The thermostat (or thermostat) is the “brain” of the refrigerator Indesitwhich controls the temperature in the chambers and controls the operation of the compressor. When it fails, the equipment stops freezing, works without stopping, or, conversely, turns off at the most inopportune moment. Replacing this part is one of the most common repair operations that you can do yourself, saving on calling a technician.

In this article you will find step-by-step instructions with photos how to change the thermostat in refrigerators Indesit popular series (C 132, B 16, T 16 etc.), as well as learn how to check its performance, select an analogue and avoid common mistakes. We will look at the nuances for models with mechanical and electronic control, and also give advice on setting up after installation.

If your refrigerator Indesit suddenly stops freezing, the compressor does not turn off or, on the contrary, turns on too rarely - in 80% of cases the thermostat is to blame. Replacing it will cost 3–5 times less than calling a specialist, and if you have a minimal set of tools, it will take no more than an hour. The main thing is to correctly diagnose the problem and follow our instructions.

Signs of a malfunctioning thermostat

Before you run to the store for a new part, make sure that the problem is really in the thermostat. Here are the key symptoms of its breakdown:

• 🔴 Refrigerator does not turn on at all (no light inside, you can’t hear the compressor running).
• ❄️ The compressor works continuously, but the temperature in the chambers does not drop to the required level.
• ⏱️ The motor turns on too rarely or, on the contrary, works in short cycles (5-10 seconds).
• 🌡️ In the freezer compartment ice has formed, and in refrigerator compartment - too warm (or vice versa).
• 🔊 You can hear relay clicks, but the compressor does not start.

If at least one of these signs matches, sooner Basically, the thermostat has failed. However, before replacing, it is worth ruling out other reasons:

• 🔌 Check whether the plug is coming off the socket and whether there are problems with the power supply.
• 🧊 Make sure that the door closes tightly (the seal may be worn out).
• ⚙️ Inspect the compressor for mechanical problems damage or refrigerant leakage.

Important! In refrigerators Indesit with electronic control (display, touch buttons), the thermostat may be part of the control board. In this case, replacement requires soldering or complete replacement of the module - it is better to contact a specialist.

How to check the thermostat of an Indesit refrigerator

Before changing a part, it needs to be check. To do this you will need multimeter (or a tester) and a screwdriver. Follow the algorithm:

1. Disconnect the refrigerator plug it in and defrost it (if there is ice).
2. Remove the thermostat protective cover (usually it is located inside the refrigerator compartment, next to the lamp).
3. Disconnect the wires from the thermostat, having previously photographed their location.
4. Switch the multimeter to continuity (or resistance measurement at 200 Ohm).
5. Attach the probes to the contacts 3 and 4 (usually they are labeled). At room temperature, the resistance should be 0 Ohm (short circuit).
6. Place the thermostat in a container with ice water for 1-2 minutes, then measure the resistance again. If it tends to infinity (opening) - the part is working. If the resistance does not change - the thermostat is faulty.

V refrigerators Indesit thermostats K59, K56, K50 (for models with mechanical control) and Danfoss 077B6 (for electronic ones) are often used. Their catalog numbers are usually indicated on the body of the part.

⚠️ Attention! If the thermostat is “stuck” in the “on” position, the compressor will work without stopping, which will lead to its overheating and failure. In this case, replacement must be carried out as quickly as possible.

What to do if you don’t have a multimeter?

You can check the thermostat “by eye”: disconnect the wires from it and short them together (pins 3 and 4). If after this the compressor starts working, the thermostat is faulty. But this method does not provide a 100% guarantee, since the starting relay may burn out.

Selection of a new thermostat for Indesit

You can buy a thermostat in specialized stores of spare parts for household appliances, at AliExpress or in service centers Indesit. The main thing is to select complete analogue according to the following parameters:

If you cannot find the original part, you can choose a compatible analog. For example, instead of K59 or Ranco K59 or Orion K59the main thing is that they match:

• 🔌 Type of fastening (on). latches or screws).
• 📏 Length of the capillary tube (if it is shorter, it will not reach the evaporator).
• 🔢 Connection diagram (location of contacts).

In Indesit refrigerators with the No Frost system, the thermostat is often combined with a defrost timer. In this case, you need to change the entire unit, not just the thermostat.

Tools and preparation for replacement

To replace the thermostat, you you will need:

• 🔧 Phillips and flathead screwdrivers.
• 📸 Phone (to take a photo of the wire connection diagram).
• 🔌 Pliers or wire cutters (for crimping terminals).
• 🧴 Alcohol or solvent (for cleaning contacts).
• 🧤 Rubber gloves (to avoid leaving fingerprints on the parts).

Preparation sequence:

1. Unplug the refrigerator and defrost it (if there is ice).
2. Take out all the food and shelves from the refrigerator compartment.
3. Remove the top cover of the refrigerator (it is attached to 2-4 screws at the back).
4. Unscrew the plastic panel inside the chamber, under which the thermostat is hidden.

In some models Indesit (for example, B 16) the thermostat is located behind the rear wall of the refrigerator compartment. In this case, you will have to remove the inner casing.

⚠️ Attention! If in your model the thermostat capillary tube is attached to the evaporator with tape or clamps, do not tear it off by force - carefully cut off the fastenings with a knife so as not to damage the tube.

Step-by-step instructions for replacing the thermostat

Let's consider the process using the example of a refrigerator Indesit C 132 G with mechanical control. In other models (B 16, T 16, NF 50), the algorithm is similar, but the places where the parts are attached may differ.

Step 1. Removing the old thermostat

1. Remove the temperature control knob (it simply pulls off or unscrews).
2. Unscrew the screws, securing the plastic panel of the thermostat.
3. Carefully pull the thermostat out of the socket, do not pull the capillary tube!
4. Disconnect the wires, first mark them with a marker or take a photo.

Step 2. Installing a new thermostat

1. Connect the wires to the new thermostat in the same sequence as on the old one.
2. Install the part into the socket and secure with screws.
3. Pass the capillary tube through the hole in the housing and secure it to the evaporator (use original clamps or electrical tape).
4. Replace the temperature control knob.

Step 3. Assembly and testing

1. Replace the plastic panel and the top cover of the refrigerator.
2. Connect the refrigerator to the network and set the regulator to the middle position temperature.
3. Check whether the compressor turns on (should start working in 5-15 minutes).
4. After 2-3 hours, check the temperature in the chambers (should be about +4°C in the refrigerator compartment).

If after replacing the refrigerator does not turn on, check:

• 🔌 Correct connection of the wires (the contacts may be mixed up).
• 🔋 Voltage in the socket (should be 220–230 V).
• ⚙️ Condition of the compressor starting relay (may burn out during a short short circuit).

Setting the thermostat after replacement

The new thermostat requires calibration. In refrigerators Indesit with mechanical control, this is done using the adjustment knob:

1. Set the knob to position "2"** (medium temperature).
2. Place the thermometer in the refrigerator compartment (on the middle shelf).
3. After 6-8 hours, check the readings:
   • 🌡️ +4…+5°C —optimal temperature.
   • 🔥 Above +6°C - turn the knob one division clockwise.
   • ❄️ Below +3°C - turn the knob one notch counterclockwise.

Repeat the adjustment every 4-6 hours until the temperature stabilizes.

For models with electronic control (for example, Indesit ITF 118) setting is performed through the menu:

1. Press and hold the button SET (or MODE) 3-5 seconds.
2. Using buttons +/– set the refrigerator temperature to +4°C, the freezer to –18°C.
3. Save the settings (usually with the button OK or automatically after 5 seconds).

If after setting the refrigerator still works incorrect, perhaps the problem is temperature sensor (for electronic models) or freon leak.

⚠️ Attention! In refrigerators with a system No Frost after replacing the thermostat, errors may need to be reset. To do this, unplug the refrigerator for 10–15 minutes, then turn it on again.

Typical mistakes when replacing and how to avoid them

Even with a seemingly simple procedure, many make mistakes that lead to repeated breakdowns. Here are the most common:

• 🔌 Mixed up wires - if you connect the contacts incorrectly, the compressor will not turn on or the start relay will burn out. Solution: always take a photograph of the connection diagram before dismantling.
• 🧊 Damage to the capillary tube —if it is bent or pressed, the thermostat will show the wrong temperature. Solution: carefully lay the tube along the original route.
• 🔧 Insufficient fixation of the thermostat —if the part is loose, the contacts may come off. Solution: tighten the screws firmly, but without fanaticism.
• ⚡ Forgot to defrost the refrigerator — ice on the evaporator can interfere with the correct operation of the new thermostat. Solution: let the refrigerator thaw for at least 12 hours.
• 📉 Incorrect temperature setting —if you set the maximum cold, the compressor will work without stopping. Solution: start from the middle position of the handle.

Another common problem is purchase of an incompatible thermostat. For example, if instead of K59 set K50, the refrigerator will not freeze slightly, since the temperature range for these models is different. Always check the catalog numbers!

What to do if after replacing the refrigerator does not freeze?

1. Check if the wires are connected correctly (especially pins 3 and 4).

2. Make sure that the capillary tube fits tightly to the evaporator.

3. Check the voltage in the socket (the circuit breaker may have tripped).

4. If all else fails, the thermostat may be defective (this happens in 5% of cases).

When is it better to call a technician

Although replacing the thermostat is a relatively simple procedure, in some cases it is better to trust a professional:

• 🔧 If in your model Indesit the thermostat is soldered into the control board (electronic refrigerators).
• ⚡ If, when checking with a multimeter, it turns out that the problem is not in the thermostat, but in the compressor or start relay.
• 💧 If after replacing the refrigerator works, but does not freeze, it is possible freon leak (refilling required).
• 🔥 If, when you turn on the refrigerator, the machine in the control panel is triggered or a burning smell appears.

The cost of replacing the thermostat in the service center is 1500–3000 rubles (depending on model and region). If you are not confident in your abilities or the refrigerator is under warranty, do not take risks, contact a specialist.

However, in 90% of cases with mechanical thermostats (Indesit C 132, B 16, T 16), you can replace them yourself, saving on repairs.

FAQ: Frequently asked questions about replacing the thermostat

Is it possible to replace the thermostat without defrosting the refrigerator?

Technically yes, but this is fraught with consequences. Ice on the evaporator can prevent the capillary tube from being properly attached, and moisture can cause a short circuit when connecting the wires. It is better to spend 12 hours defrosting than to redo the job later.

Which thermostat is suitable for Indesit No Frost?

In models with No Frost (for example, Indesit ITF 118), the thermostat is often combined with a defrost timer. Original details: Danfoss 077B6324 or Eliwell ITL100A. Before purchasing, check the catalog number for the refrigerator model.

What to do if, after replacing the thermostat, the refrigerator runs without stopping?

Probable reasons:

1. Wires are connected incorrectly (check pins 3 and 4).
2. Capillary the tube does not touch the evaporator (reinstall it).
3. The temperature adjustment knob is in the “MAX” position (set to “2”).
4. The new thermostat is defective (replace under warranty).

How much does the thermostat cost for Indesit?

The price depends on the model:

• K59 (mechanical) - 800–1500 rubles.
• Danfoss 077B6 (electronic) - 1500–2500 rubles.
• Analogs (for example, Ranco K59) — 600–1200 rubles.

Buy only in trusted stores (for example, 220-volt.ru, All-Zapchasti) to avoid fakes.

Is it possible to repair the thermostat, or just replace it?

The thermostat is a sealed device, and in 99% of cases it cannot be repaired (unless you clean the contacts if they have oxidized). If it fails, just replace it.