The situation when the refrigerator Haier makes clicks instead of the usual humming causes reasonable concern for the owner. This sound often indicates that the cooling system is trying to start, but is encountering resistance or a technical obstacle. Ignoring such symptoms can lead to failure of an expensive compressor or electronic control board.
In most cases, a characteristic click is heard at the moment when the thermostat or electronic module gives the command to turn on the motor. If this is followed by silence or a series of repeated clicks and then silence again, the trigger is unable to overcome the inertia or electrical resistance of the circuit. Understanding the nature of the sound is the first step to troubleshooting.
Do not panic ahead of time, as some reasons are temporary and do not require calling a technician. However, if the clicking is regular and accompanied by a lack of cold, a thorough diagnosis is necessary. In this article we will analyze in detail the mechanical, electrical and systemic causes of extraneous noise in refrigerators Haier.
Normal operation of the compressor and thermostat
Before sounding the alarm, it is important to distinguish an emergency knock from the sounds of normal operation of the equipment. Modern refrigerators Haier, especially models with inverter compressors, can make quiet clicks when switching modes. This is due to the operation of solenoids and valves that regulate the refrigerant pressure.
The thermostat or temperature sensor, detecting the achievement of the set temperature, opens the compressor power supply circuit. At this point, a distinct click is often heard. This is absolutely normal and indicates the correct operation of the automation. This becomes a problem only when the clicks become more frequent and the temperature in the chambers stops decreasing.
⚠️ Attention: If the clicks are accompanied by vibration of the housing or last longer than 5-10 seconds each time you try to start, this indicates a “hard start” of the engine, which is dangerous for the compressor windings.
Inverter models operate differently than classic linear units. They do not turn off completely, but only slow down. However, at the moment of initial switching on or after defrosting, even inverter can make a characteristic sound of electronics starting up. It is important to listen: the sound should be one-time and soft, and not sharp and metallic.
Faulty compressor start relay
The most likely cause of loud clicks is a failure of the start relay. This small element is responsible for supplying voltage to the starting winding of the engine at the moment of start. When the relay wears out or burns out, it tries to close the contacts, making a loud click, but the circuit does not close and the motor does not start.
Refrigerators Haier use different types of relays: posistor and induction. When heated, posistor models change their resistance, opening the starting circuit. If this process is disrupted, you hear a series of clicks at intervals of several minutes - this thermal protection relay is trying to start the unit again, but to no avail.
- 🔌 Posistor lost its properties and does not conduct current correctly.
- ⚡ The contacts inside the relay have oxidized or burned from sparking.
- 🔨 Mechanical jamming of the core in induction relays.
- 🌡️ Overheating of the relay itself due to poor ventilation in the compressor niche.
Replacing the start relay is one of the most common repair procedures. It does not require sophisticated equipment, but it does require precision. It is important to select an element with markings corresponding to the power of your compressor Haier. Using an unsuitable relay can lead to complete combustion of the motor.
Problems with the electronic control module
In modern models Haier with a system No Frost and electronic control, the start of the compressor is controlled by the main board. If the control module is “glitchy” or receives incorrect data from the sensors, it can send chaotic signals to turn on and off, which is perceived as frequent clicking.
Often the problem lies in power surges in the network that damage sensitive electronics. The board may try to start the compressor, but the protection system immediately blocks the start, recording an error. As a result, you hear a click of the relay on the board, followed by a pause and repetition of the cycle.
| Symptom | Probable cause in the module | Solution |
|---|---|---|
| Frequent clicks without starting | Failure control triac | Module replacement or re-soldering |
| Clicks and blinking indicators | Firmware or sensor failure | Resetting errors or replacing sensor |
| Single click and silence | Open circuit on the board | Track diagnostics |
Diagnostics of the electronic module requires special knowledge and tools. You can independently check only the integrity of the fuses and the visual absence of traces of burning. If you do not have the skills to work with electronics, it is better to entrust this task to a specialist.
Valve knocking and water hammer
Sometimes clicks are produced not by the electrics, but by the refrigeration system itself. Dual compressor models or units with a fresh zone may use solenoid valves to redirect the refrigerant. Their work is accompanied by a characteristic sound, similar to a pebble hitting glass or a click.
Hydraulic hammer is a more serious problem. It occurs if moisture has entered the system or if the refrigerant balance is imbalanced. Liquid freon entering the compressor causes shock loads that can destroy the valves inside the motor. The sound is very loud and sharp.
If the refrigerator Haier clicks during operation, but produces cold, perhaps it is just freon flowing through the tubes. However, if the sound changes to a metallic clanging sound, operation should be stopped immediately. Continuing to operate in this mode will lead to depressurization of the circuit.
⚠️ Attention: Water hammer often leads to jamming of the compressor piston group. If after the click you hear a buzzing, strained sound of the motor, immediately disconnect the device from the network.
Mechanical reasons and foreign objects
Do not forget about banal mechanical reasons. The vibration of a running compressor is transmitted to the housing and nearby elements. If the fastening bolts of the motor or protective casing are loose, they may produce rhythmic tapping sounds that can easily be confused with internal clicks.
Objects falling behind the refrigerator or on the compressor can also be a source of sound. The system fan No Frost, touching frozen ice or a foreign object, also makes clicking sounds, especially at the time of startup.
- 🔩 Loose bolts securing the compressor to the frame.
- ❄️ Ice build-up on the evaporator and touching the blades fan.
- 📦 Bottles or cans standing close to the walls of the refrigerator.
- 🕸️ Small parts or debris that have fallen inside the case.
Checking the mechanical part should begin with a visual inspection of the back wall. Make sure that the condenser grille does not touch the wall and that the unit itself is level on all four legs. Skewing the case increases vibration and provokes the appearance of unnecessary noise.
How to check the No Frost fan?
To do this, you need to remove the back panel in the freezer. Turn on the refrigerator and gently (with your hand or a ruler) hold the fan blades. If the clicking stops, the problem is in the fan motor or ice on it.
Diagnostics and step-by-step test instructions
To accurately determine the reason why the refrigerator clicks Haier, it is necessary to perform sequential diagnostics. This will help weed out false alarms and identify the real problem. Be careful and follow safety precautions when working with electrical appliances.
Start by analyzing the periodicity of sounds. If the clicks are rare and the refrigerator freezes, this is normal. If the clicks are frequent and there is no cold, the problem is in the starting unit. This is followed by checking the electrical circuit and mechanical inspection.
☑️ Diagnostics of clicks
- Unplug the refrigerator and move it away from the wall.
- Remove the back the bottom panel covering the compressor.
- Visually inspect the starting relay: there should be no burning smell, cracks or soot.
- Check whether the compressor is securely fastened to the frame.
- Turn on the device and listen to where exactly the sound is coming from.
If no visual defects are found, but the problem persists, you will need to test the compressor windings and check the relay resistance with a multimeter. The normal resistance of the starting winding is usually higher than that of the working winding. If the device shows a break or short circuit, the unit requires replacement.
When a call to the technician is necessary
Exists a number of situations where independent repair is not only ineffective, but also dangerous. If you are not confident in your abilities or the diagnostics indicate complex breakdowns, it is better to contact an authorized service center Haier.
This is especially true in cases where intervention in the refrigeration circuit is required (filling with freon, soldering pipes) or replacing the compressor itself. These works require a license, special equipment and skills.
- 🛑 The compressor hums, clicks, but does not start, and at the same time gets very hot.
- 🛑 There is a smell of burnt wiring or plastic.
- 🛑 The electronic control module does not respond to buttons or displays a code errors.
- 🛑 The tightness of the system is broken (hissing is heard, oil stains are visible).
A professional technician will conduct a full diagnosis, including measuring the pressure in the system and checking the current consumption of the motor. This will allow you to accurately identify the cause and eliminate it with a guarantee. Remember that unqualified intervention may lead to loss of product warranty.
Prevention of problems
In order for your refrigerator Haier to serve for a long time and silently, it is important to follow the operating rules. Regular defrosting (even for the No Frost system, prevention will not hurt), keeping the condenser clean and proper installation will prolong the life of the unit.
Do not overload the refrigerator with food and make sure that the doors close tightly. The entry of warm air causes the compressor to work harder, which increases wear on the starting equipment. It is also not recommended to change the temperature setting frequently.
Is it possible to use the refrigerator if it clicks?
If the clicks are rare and the refrigerator continues to freeze, short-term operation is possible. However, if the clicks are frequent, accompanied by a lack of cold or a buzzing sound, the use of the device is prohibited - this can lead to a fire or permanent breakdown.
How much does it cost to replace the start relay?
The cost consists of the price of the part (usually inexpensive) and the work of the technician. Depending on the region and model, the price may vary. It is better to check the exact amount at service centers, as prices change.
Why does the new Haier refrigerator click?
New units may make sounds when setting thermostats for the first time, expanding materials due to temperature, or operating valves. If the sound does not resemble a metallic knock and there is cold, this is normal.
How often do you need to change the starting relay?
The starting relay is a resource part. With stable mains voltage, it lasts for years. However, with frequent power surges or overheating of the compressor, its resource may be exhausted in 3-5 years.