Replacing the relay of the Indesit refrigerator: instructions with photos and expert advice

The compressor start relay is one of the most vulnerable parts in refrigerators Indesit. Its failure leads to the fact that the unit stops freezing, makes strange sounds or does not turn on at all. Replacing a relay - a task that even a beginner can cope with if you know the nuances. In this article, we will look at how to independently diagnose a malfunction, select the appropriate spare part and install it without the risk of damaging the refrigerator.

Many owners are afraid to get into the electrical part of the equipment, fearing an electric shock or permanent breakdown. In fact, if you follow elementary safety measures and follow a clear algorithm, the process will take no more than an hour. The main thing is not to confuse the type of relay (it can be starting, start-protective or combined) and connect the contacts correctly.

When starting repairs, keep in mind: in 80% of cases the problem lies not in the relay itself, but in a broken compressor winding or a malfunction of the thermostat. Therefore, check these nodes first. If the diagnosis is confirmed, our guide will help you save on calling a technician.

Signs of a faulty refrigerator relay

Before disassembling the refrigerator, make sure that the problem is in the relay. Several characteristic symptoms indicate its breakdown:

• 🔊 The compressor does not startalthough power is supplied (a click is heard, but the motor does not hum).
• ⚡ The refrigerator turns on for 1-2 seconds and turns off immediately - a typical sign of "sticking" contacts.
• ❄️ The temperature in the chambers does not drop, although the light inside is on and the fan (if any) is running.
• 🔥 The relay gets hot or smells like burning -a signal about a short circuit inside the case.
• 🔄 The compressor runs without stopping, but there is no cold - perhaps the overheating protection does not work.

If the refrigerator Indesit models C 132 G, B 18 or No Frost emit loud clicks with an interval of 5–10 seconds, this almost always indicates a faulty start relay. In older models (for example, Indesit ST 167), the problem may manifest itself as lack of response to the thermostat —the motor does not turn on even when the temperature control knob is turned to the maximum.

⚠️ Attention: If the compressor is humming, but it does not start, and the relay body is cold - the reason may be an interturn short circuit in the motor winding. In this case, replacing the relay will not help, diagnostics of the compressor will be required.

Types of relays in Indesit refrigerators: how not to make a mistake with the choice

In refrigerators Indesit three types of relays are used, and they are easy confuse:

1. Start protection relay (RTK) —responsible only for starting the compressor. Found in models before 2015 (for example, Indesit BI 16).
2. Start protection relay (RTP) -combined, combines the functions of starting and overheating protection. Installed on most modern refrigerators.
3. Electronic relay — used in inverter compressors (model Indesit EVN series). Outwardly it looks like a small box with a microcircuit.

To choose the right spare part, pay attention to:

• 🆔 Markings on the body old relay (for example DANFOSS 103N0012 or ASCO 115V).
• 🔧 Type of fastening: on screws, latches or clips.
• 🔌 Contact location —there can be 2 or 3 of them (for models with additional protection).

For refrigerators Indesit No Frost relays are often suitable Danfoss series 103 or 067, and for old single-chamber — ASCO or Sensode. If you are not sure of the choice, take the old relay to the store - the sellers will select an analogue according to the sample.

In Indesit models with the Full No Frost system (for example, Indesit DF 5200), the relay can be built into the control board. In this case, replacement requires soldering or complete. replacing the module.

Tools and preparation for replacement

For work you will need:

• ⚒️ Phillips screwdriver (PH2) and flathead (3-4 mm).
• 🔌 Multimeter (for checking contacts).
• 🧲 Tweezers or thin pliers (for removing clips).
• 📸 Phone (to photograph the connection diagram).
• 🧼 Rags and alcohol (for cleaning contacts).

Before starting work:

1. Unplug the refrigerator and wait until it is completely defrosted (if there is ice on the evaporator).
2. Move the equipment away from the wall to gain access to the compressor.
3. Remove the bottom panel (it is attached to 2-4 screws or latches).

⚠️ Attention: In refrigerators Indesit with electronic control (for example, Indesit EWC 61052) after turning off the power, the program may be reset. Write down the temperature settings in advance or take a photo of the screen.

If the compressor is hot, let it cool for 1-2 hours. Working with a heated motor is dangerous - you can get burned or damage the new relay contacts.

Step-by-step instructions for replacing the relay

The replacement algorithm is the same for most models Indesit, but there is nuances depending on the type of relay mounting. Let's consider the universal method:

1. Remove the old relay.

   It can be attached:

   • On screws —unscrew them with a screwdriver.
   • On clips - carefully pry with a flat screwdriver (do not break the plastic!).
   • On connector - pull up, holding the compressor with the other hand.

   ⚠️ Attention: In models Indesit BIAA 13 and similar ones, the relay may be hidden under the heat-insulating cover. Remove it by pulling it towards you.

2. Disconnect the wires.

   Take a photo of the connection diagram! In refrigerators Indesit usually 3 wires are used:

   • Common - comes from the plug.
   • Start - connected to the starting winding of the compressor.
   • Working (Run) - goes to the working winding.

If the wires are oxidized, clean them with alcohol or fine sandpaper.