The refrigerator Biryusa stopped freezing, the motor hums but does not start, or does the compressor turn on with a characteristic click and immediately turn off? In 80% of such cases, the starting relay is to blame - a small but critical part that is responsible for starting the compressor. You can replace it yourself, without resorting to the services of a service center, if you know the nuances of the design and follow a proven scheme.
In this article we will figure out how correctly diagnose a relay malfunctionto select a suitable replacement for models Biryusa 3, 6, 18, 22 and other popular series, as well as carry out the replacement without the risk of damage compressor or electrical circuit. We will pay special attention typical errorsthat beginners make, and give recommendations on choosing between original and universal relays.
If you have never dealt with electrical circuits, do not be alarmed: the process of replacing a relay is Biryusa simpler than it seems. The main thing is to follow safety precautions and not skip key steps. For clarity, we have supplemented the instructions photos of disassembly stages and a table of relay compatibility for different models of refrigerators.
Signs of a relay malfunction in the Biryusa refrigerator
The first step is to make sure that the problem is in the relay and not in the compressor or thermostat. The following symptoms indicate a malfunction of the starting relay:
- 🔊 The compressor does not start, although a click is heard (relay operation). The motor may twitch briefly and immediately turn off.
- ⚡ The refrigerator does not freeze, but the light inside the chamber is on - this means that power is supplied, but the start circuit is broken.
- 🔄 The compressor turns on with a delay (after 5–10 minutes after the click) or operates jerkily.
- 🔥 The relay gets hot or smells like burning -a sign of burnt contacts or a broken coil.
If the refrigerator Biryusa it emits Continuous humbut does not freeze, the problem is most likely in the compressor (the piston is jammed) or a freon leak. In this case, replacing the relay will not help. To finally confirm the diagnosis, you can check the relay with a multimeter - more on this in the next section.
Important! On models Biryusa with No Frost system (for example, Biryusa 130 or Biryusa 22K) a faulty relay can lead to fan malfunctions. If, along with relay clicks, you hear an unusual noise in the freezer, also check the defrost sensor. evaporator freezing and fan malfunctions. If you hear an unusual noise in the freezer along with the relay clicking, also check the defrost sensor.
How to check the Biryusa refrigerator relay with a multimeter
Before replacing the relay, you need to make sure that it is really faulty. To do this you will need a multimeter (tester) and a screwdriver. Follow the algorithm:
- Disconnect the refrigerator from the network and remove the back cover (or compressor protective casing).
- Disconnect the relay from the compressor. It is attached to the compressor housing using a spring clip or screws.
- Check resistance of the relay coil:
- Set the multimeter to resistance measurement mode (200 Ohms).
- Connect the probes to the coil contacts (usually there are two extreme contacts on the block).
- Normal resistance - 20–50 Ohm. If the device shows
0(short circuit) or1(open), the relay is faulty.
- Switch the multimeter to mode
2000 Ohm. - Measure the resistance between the middle and one of the outer contacts. Normal - 10–30 Ohm.
If at least one of the tests shows a deviation from the norm, the relay must be replaced. On models Biryusa 6M i Biryusa 18C there is often a problem with burning contacts - in this case, the resistance may be normal, but the relay still does not work. This is visually noticeable by blackened or melted contacts.
What to do if there is no multimeter?
If you don’t have a tester at hand, you can try to temporarily install a known-good relay (for example, from another refrigerator of the same model). If the compressor starts working, the problem is in the relay. You can also inspect the part for physical damage: cracks, melting or swelling of the housing.
Attention! ⚠️ On some models Biryusa (for example, Biryusa 22K-3) the relay is combined with start-up protection device (PZR). In this case, you need to check both elements. If the PZR is faulty, the compressor will turn off a few seconds after starting due to a false activation of the protection.
Choosing a relay for the Biryusa refrigerator: original vs universal
When buying a new relay, it is important to choose a part that is compatible with your model Biryusa. Original relays are produced under the brand RTK (Russian thermal controller) or Danfoss (for new models). However, universal analogs are also suitable if their parameters meet the requirements of the compressor.
Main selection criteria:
- 🔧 Compressor type: for Biryusa used compressors DXM (domestic) or Secop (imported). Check the compressor model - it is indicated on the sticker.
- 📏 Dimensions and mounting: the relay must fit exactly on the compressor. For example, for Biryusa 3 a relay is suitable
RTK-HKL-1, and for Biryusa 22K —Danfoss 103N0010. - ⚡ Rated current: must match the compressor current (indicated on the nameplate). For most models Biryusa this is 1.2–1.4 A.
| Refrigerator model | Type compressor | Original relay | Universal analogue |
|---|---|---|---|
| Biryusa 3, 6M | DXM-3, DXM-5 | RTK-HKL-1 |
Lgadq 1-1 |
| Biryusa 18, 18C | DHM-10 | RTK-HKL-3 |
Danfoss 103N0010 |
| Biryusa 22K, 22K-3 | Secop (DL) | Danfoss 103N0012 |
Embraco ER22 |
| Biryusa 130 (No Frost) | Secop (DL) | Danfoss 103N0016 |
Aspera R-16 |
Critical nuance: on Biryusa refrigerators with Secop compressors (imported) you cannot install relays from domestic DXM compressors - this will lead to overheating of the windings and failure of the motor. If you are not sure about the choice, take the old relay with you to the store or take a photo of its marking.
Where to buy a relay for Biryusa:
- 🛒 Service centers (original parts, but more expensive).
- 🌍 Online stores (for example, 220-Volt, All-ZIP - a wide selection of analogues).
- 🔧 Stores of spare parts for refrigerators (often universal relays are available).
Step-by-step instructions for replacing a relay on Biryusa
To replace a relay you do not need to be a professional craftsman. All you need is a screwdriver, pliers and 30–40 minutes of free time. Follow the instructions:
☑️ Preparing to replace the relay
Step 1: Disconnection and disassembly
Unplug the refrigerator and carefully slide it away from the wall to gain access to the back panel. On most models Biryusa the relay is located on the compressor and covered with a plastic or metal casing. Unscrew the casing mounting screws (usually 2–4 pieces).
On models with closed compressor (for example, Biryusa 22K), you may need to remove the bottom panel. Be careful - thermostat wires are often laid under the panel.
Step 2: Dismantling the old relay
The relay is attached to the compressor using a spring clamp or screws. Carefully remove the clip by pulling it up or to the side (depending on model). If the relay is screwed on, unscrew the screws.
Disconnect block with wires from the relay. Pay attention to the location of the wires - it is better to photograph or sketch the connection diagram. On some models Biryusa the wires are marked with letters:
S— starting winding,R— working winding,C— common contact.
Step 3: Installing a new relay
Before installation, compare the old and new relay - they must match in size and location of contacts. Install the new relay on the compressor and secure it with a clamp or screws.
Connect the wires according to the diagram. If there is no marking on the block, focus on the colors:
- 🔴 Red/orange - starting winding (
S), - 🔵 Blue/black - working winding (
R), - ⚪ White/yellow - common contact (
C).
Step 4: Checking operation
Reinstall the compressor casing and back cover. Connect the refrigerator to the power supply. After 5-10 minutes, you should hear a click (the relay operates), and then the compressor starts up. If the motor hums and the refrigerator begins to freeze, the replacement is successful.
Attention! ⚠️ If after replacing the relay the compressor buzzes but won't start, there may be a problem in the motor itself (jamming or broken winding). Do not turn on the refrigerator again - this may lead to overheating. In this case, diagnostics of the compressor will be required.
Typical mistakes when replacing a relay and how to avoid them
Even experienced ones technicians sometimes make mistakes that lead to repeated breakdown or failure of the compressor. Here are the most common ones:
- ⚡ Using a relay from another model. For example, installing
RTK-HKL-1instead ofDanfoss 103N0012on Biryusa 22K will lead to overheating. windings. - 🔌 Incorrect connection of the wiresIf you mix up the starting and operating windings, the compressor will not start or will burn out.
- 🛠️ Tightening the fasteners too muchThis can deform the relay housing and cause a short circuit.
- 🕒 Ignoring checks after replacementIf you do not check the operation of the refrigerator right away, you may miss the moment when the compressor starts. overheat.
Another common mistake is buying a used relayEven if it looks good on the outside, the contacts inside could wear out in this case. used relay
On models Electronically controlled turquoise (for example, Biryusa 130) after replacing the relay, you may need to error reset in the control unit. To do this, unplug the refrigerator for 10-15 minutes, then turn it on again.
What to do if replacing the relay did not help?
If after replacing the relay the compressor still does not start or the refrigerator does not freezes, the problem may lie in other components:
- 🔋 Thermostat: if it does not give a start signal, the compressor will not work. Check the thermostat with a multimeter (the resistance between the contacts should change when you turn the knob).
- 🔌 Start-protective relay (PPR): on some models it is separated from the start relay If. The PPR is faulty, the compressor will turn off after a few seconds.
- ⚙️ Compressor: if the motor hums but does not start, it is possible piston jammed or there is a freon leak. In this case, professional repairs will be required.
- 📡 Electronic control unit: on modern models Biryusa (for example, Biryusa 22K-3) a board malfunction can simulate a relay failure.
To diagnose the compressor, you can measure the resistance of its windings:
- Between the contacts
SandC(starting winding) - 10–30 Ohm. - Between
RandC(working winding) - 5–15 Ohm. - Between
SandR—the sum of the two previous values (for example, 20 + 10 = 30 Ohm).
If the resistance is different from the norm or equal 0/1, the compressor is faulty.
Attention! ⚠️ If you suspect a compressor malfunction, do not turn on the refrigerator without diagnostics, operating the motor with a jammed piston or a broken winding can lead to in case of fire or damage to the electrical wiring.
Prevention: how to extend the life of the Biryusa refrigerator relay
The relay is a consumable item, but its service life can be increased if you follow simple rules:
- ⚡ Stable voltage: power surges in the network are the main reason for relay failure. Use voltage stabilizer or at least a surge protector.
- 🧹 Cleanliness of the compressor: dust and dirt on the case compressors impair heat dissipation, which leads to overheating of the relay. Regularly clean the back wall of the refrigerator.
- 🔌 Correct. shutdown: if the refrigerator is not used for a long time, disconnect it from the network. Frequent starts wear out the relay contacts.
- 🛠️ Timely replacement: if the relay starts to click more often than usual or gets hot, do not wait for a breakdown - replace it in advance.
On models Turk with the No Frost system additionally monitor the operation of the fan If it becomes clogged. ice or dust, the compressor operates with overload, which accelerates the wear of the relay.
Average relay life on refrigerators Biryusa — 5–7 yearsIf your refrigerator is older, it makes sense to keep a spare relay ready, especially if the model is discontinued. (for example, Biryusa 6M or Biryusa 18C).
FAQ: Frequently asked questions about replacing the relay on Biryusa
Is it possible to replace the relay on Biryusa without turning off the refrigerator?
No Replacement! the relay when the refrigerator is turned on is extremely dangerous. The risk of electric shock is 100%, in addition, you can damage electronic components. Always disconnect the equipment from the network before repairing.
How much does the relay cost for Biryusa and where can you buy it cheaper?
The cost of the relay depends on the model:
- Original relay
RTK-HKL-1- from 800 to 1500 rubles. - Universal relay (for example
Danfoss 103N0010) - from 600 to 1200 rubles. - Relays for imported compressors (Secop) - from 1200 to 2000 rubles.
The lowest prices are usually in online stores (for example, AliExpress, 220-Volt), but there is a higher risk of running into a fake. In service centers, the parts are more expensive, but with a guarantee.
What is the difference between the RTK-HKL-1 relay and the Danfoss 103N0010?
RTK-HKL-1 is a domestic relay designed for compressors DHM (installed on older models Biryusa). Danfoss 103N0010 is an imported analogue for compressors Secop (new models). They are not interchangeable! Danfoss has higher operating accuracy and reliability, but the price is higher.
Is it possible to repair the relay or just replace it?
Theoretically, the relay can be repaired (clean the contacts, replace the spring), but in practice this is impractical:
- Repair takes a lot of time and requires skills.
- The repaired relay will not last long (1-3 months).
- The cost of a new relay is comparable to the price of repair.
An exception is if you have a rare relay model, and a new one cannot be found. In this case, you can try to restore the contacts. sandpaper (fine grain).
Is it necessary to fill the refrigerator with freon after replacing the relay?
No, replacing the relay does not require charging with freon. Freon circulates in a closed circuit, and if the compressor is working, there should be no leakage only in two cases:
- If you damaged the refrigerant pipes when replacing the relay.
- If the compressor does not start due to a freon leak (this is diagnosed separately).
Refilling it yourself with freon is extremely difficult and dangerous - it is better to entrust it to a specialist.