The duration and correctness of the operation of cooling devices depends on the quality of the factory assembly, manufacturer and installation. The presence of defects and errors at one of the stages leads to the failure of the air conditioner prematurely. It is dangerous to buy goods from unverified sellers, trust the installation to beginners or independently carry out installation of equipment without experience and theoretical knowledge.
If the split-system starts to fail in the form of insufficient cooling, frequent shutdowns or failures to start, you need to call the wizard to inspect the external and internal units and troubleshoot.
Repair of equipment begins only after diagnosis, so as not to increase the cost of the air conditioner and not throw away good parts.
Self-diagnosis of the air conditioner
Diagnostics of the air conditioning system begins before the master arrives, as usually failures begin for simple reasons that do not require special skills and equipment. Failure of the device sometimes occurs not because of a breakdown in the refrigeration equipment, but because of a malfunction in the mains.
Air conditioners of leading brands of manufacturers are equipped with various safety systems that give a signal in case of violation of working conditions. This avoids serious damage and reduces the cost of repairing the air conditioner.
Diagnostic steps:
- Check the batteries in the remote control. There may not be enough power to transmit the signal to the device.
- Make sure the outlet is working. To do this, plug in another electrical appliance. If it does not work, call an electrician, and switch the air conditioner to a different point of supply of electricity through an extension cord.
- Check the operation and settings of the air conditioner. In the spring, people often forget to switch the heating mode to cooling. The temperature sensor sends a signal to the split system that the desired temperature has been reached and that it is not necessary to work. The device immediately turns off after turning on.
- The appearance of an unpleasant odor from the internal block is a sign of the multiplication of bacteria. You need to rinse the filter, vacuum the insides and buy an antiseptic for air conditioners. This simple job can completely solve the problem.
- If condensation flows through the walls, the drain pipe is clogged. Usually this happens when the equipment is turned off for the whole winter, and in autumn insects hide in the tube and winter there. If the outdoor unit is within reach, you can clean the drain pipe on your own.
If all the measures taken have not helped to solve the problem, you need to invite specialists.
Common problems
Diagnosis of a split system is not only a test of the operation of the device itself. Malfunctions can occur due to power surges due to a neutral break. They will occur until the house carries out repairs to restore the mains and phase balance. It is recommended to temporarily install a transformer to protect all household appliances. It is not recommended to engage in such work without experience, because the problem is on the electrical panel, in the case of which voltage remains, and there is a risk of getting a fatal discharge. You must have access to the technical documentation at home in order to understand the system and not aggravate the situation.
It is not recommended to repair the compressor yourself, as it is associated with the disassembly of the external unit, which can be located far from the balcony.It is necessary to call the masters with the necessary tools and equipment. Compressor failures are associated with leaks and untimely filling of the system with freon, due to which the system overheats, works hard for some time, and then breaks.
In the flowering season of poplars, the outer lattice is clogged with down. This is an excellent sealant that closes the heat dissipation and causes the compressor to overheat to unacceptable temperatures.
Untimely cleaning of the system leads to jamming of the compressor, after which its replacement is required. The price of a new compressor is half the cost of the entire split system.
One of the common problems is fan jamming. Occurs due to clogging with branches after a storm or accumulation of dirt on the blades. Repair consists in unscrewing the protective grill and releasing the fan. In addition, the master rinses all the details of the external unit, vacuums and collects everything back.
If the indicators show a pressure drop in the refrigerant circulation system, then the circuit is damaged or broken into the line. Sometimes repairs in an apartment are done by lay people who drill holes in the walls without worrying about the communications passing there - electrical wires or copper pipes through which freon flows. If during laying the line was pressurized with nitrogen, a loud pop will occur, which indicates the exit of freon outside the line. Do not turn on the air conditioner after this. If specialists are called in for a short time, serious damage can be avoided. From the described sounds, the masters will determine the location of the holes, dismantle the wall and seal the pipe.
Leaks of freon and freezing of the heat exchanger are also eliminated by specialists of the service center. Leakage may be due to factory defects.
If the equipment is under warranty, it is not profitable to independently perform the work for financial reasons: incorrect actions will aggravate the problem, and the company will refuse to pay for the work of employees.
Instruments with which to measure the amount of refrigerant lost by the air conditioner:
- digital scales;
- Digital Thermometer;
- manometric station.
Depending on the brand of refrigerant, you need to add only a certain amount of liquid or that part of it that is subject to the greatest evaporation.
Prevention and prevention of breakdowns of the air conditioner
The basic rule is to clean the system on time and prevent the compressor from overheating. Reasons for overheating:
- pollution of the indoor and outdoor units;
- untimely replacement of filters and lubricants;
- turning on the air conditioner for heating at sub-zero temperatures;
- lack of refrigerant in the system.
All rules are described in the instructions. When reducing the performance of a split system, you need to read the manufacturer’s recommendations and remember that what was written was not performed by the user. Most often, breakdowns are caused by non-compliance with operating rules or factory defects.
It is recommended to conclude a contract for regular servicing of home climate equipment, then the masters themselves will call and remind you of the need for a scheduled inspection.
