Jinling Town air conditioning maintenance supplier

The Xuegong Hongxiang Home Service Department in Linzi District has modern management, multiple professional maintenance technicians nationwide, and sincere and high-quality services. It's our city's home air conditioning maintenance service department. Since its establishment, Xuegong Hongxiang Home Service Department in Linzi District has continuously absorbed advanced experience from modern management enterprises, possessed high-level technical talents, and has a fairly accurate and fast maintenance capability.

Fluorination is a fundamental and highly technical task in air conditioning maintenance. The prerequisite for accurate fluoridation is that the repaired air conditioner must meet its usage conditions and installation standards. The air conditioning control system and actuating components for maintenance must be functioning properly; The pipeline system must have effectively eliminated air, moisture, blockages, leakage points, and other situations; The filter screen and internal and external heat exchangers should be clean and well ventilated. The maintenance tools and materials must be qualified. Strictly follow the fluorine addition process for production. The basis and method for accurate fluorine addition: Quantitative fluorine addition: Connect the three-way valve, pressure gauge, fluorine hose, fluorine bottle or vacuum pump at the process port of the three-way shut-off valve. After releasing fluorine and vacuuming, slowly add fluorine. Weigh with a more accurate measuring tool such as a platform scale. When the decrease in fluorine in the fluorine bottle is equal to the standard fluorine addition amount on the air conditioner nameplate, close the valve of the fluorine bottle.

The fine adjustment data summarized from air conditioning maintenance practice is: under cooling conditions, with the outdoor unit air temperature of 35 ℃ as the standard, for every 1 ℃ increase or decrease in outdoor temperature, the rated working current value is increased or decreased by 1.4%; Under heating conditions, with the outdoor unit air temperature of 7 ℃ as the standard, for every 1 ℃ increase or decrease in outdoor temperature, the rated working current value is increased or decreased by 1%; Under cooling or heating conditions, with a rated power supply voltage of 220V or 380V as the standard, for every 1V increase or decrease in power supply voltage, the rated working current value decreases or increases: single-phase 1 horsepower 0.025A, 1.5 horsepower 0.025A × 1.5, 2 horsepower 0.025A × 2, 3 horsepower 0.025A × 3; Three phase 3 horsepower 0.025A × 3/3, 5 horsepower 0.025A × 5/3, 10 horsepower 0.025A × 10/3.

The troubleshooting method for compressor overload in air conditioning maintenance is to short-circuit the plug of the compressor overload protector on the electronic control motherboard. If the air conditioner still reports a fault, it can be determined as a fault in the air conditioning motherboard and needs to be replaced; Use a multimeter to test the compressor overload protector at room temperature. If the overload protector is open circuit, it can be determined that it is damaged and needs to be replaced; Check if the resistance value of the compressor performance is normal and if there are any dirty blockages in the performance system; Troubleshooting method for high indoor air outlet temperature (heating), check if there is any dirt or blockage in the air conditioning duct system, and make corresponding adjustments if there is; Check if the electric auxiliary heating system of the air conditioner is working abnormally, that is, whether the evaporator sensor of the air conditioner detects a high temperature or keeps it on. If so, it indicates that the electric auxiliary heating control system is malfunctioning and the air conditioning circuit board needs to be checked;

The company adheres to the principle of customer first, with the principles of "science, fairness, and rigor", insists on technological innovation, strives to improve quality and service levels, establishes a strict quality assurance system, and is a trusted partner for customers. Mission: To provide users with professional and thoughtful technical services with high-quality equipment and professional technical talents, and to solve problems for customers. Our service philosophy: low prices, good service! Professionals do professional things: We focus on air conditioning services, so we are more professional! Air conditioning maintenance, cleaning, relocation, fluoridation, disassembly and assembly can be provided with high-quality and affordable professional services by just making a phone call, and quality assurance can be provided after the service.

The key points for repairing the refrigeration system of air conditioning are to observe the working conditions of the internal and external units, such as the display status of the indicator light board, whether the internal unit is working, whether the wind speed output is normal, whether the external unit fan and compressor are running, in order to determine whether the failure to cool is caused by electrical or system problems. Detect various data of the air conditioner: the water flow of the air conditioner. Generally, continuous dripping of water from the internal unit is normal for the air conditioner, but it can only be used as a reference value due to the influence of environmental humidity and temperature. The normal temperature difference between the inlet and outlet should be between 12-14 degrees, but it can also be affected by environmental temperature and wind speed. Measure the pressure value of the system pipeline. Generally, the low pressure during refrigeration is between 0.45Mpa and 0.50Mpa, and the high pressure during heating is between 1.8Mpa and 2.2Mpa. However, the pressure is affected by the ambient temperature. The higher the air inlet temperature of the air conditioner, the higher the exhaust pressure and condensation temperature, and vice versa; The higher the air conditioning load, the higher the suction pressure, and the higher the evaporation temperature (the normal evaporation temperature of the evaporator is between 5-7 degrees).

The suction temperature during air conditioning maintenance refers to the gas temperature at the inlet of the compressor, also known as the return air temperature. If the refrigerant cannot evaporate fully in the evaporator, it will result in a low suction temperature, which can cause condensation or frost near the suction port. When the refrigerant charging amount is insufficient, the refrigerant circulation through the throttle is too small or the return pipeline is too long or the pipe diameter is too small, which will cause the suction temperature to rise. The suction temperature should generally not exceed 35 degrees. Excessive suction temperature can cause problems such as increased compressor power consumption, reduced cooling capacity, and increased exhaust temperature. In the refrigeration system of household air conditioners, the return air temperature is generally slightly higher than the evaporation temperature, with a temperature difference of about 5-12 degrees.

Troubleshooting method for temperature fuse disconnection protection in air conditioning maintenance, check whether the wiring between the motor temperature fuse and the electronic control motherboard is reliable, and adjust it if there is a problem; Remove the temperature fuse connector from the motherboard, and then short-circuit the motherboard plug. If the air conditioner still has temperature fuse protection, it is a motherboard fault; If the motherboard no longer has protection, observe whether the motor temperature is too high. If the motor temperature is not high, it is a temperature fuse fault; If the temperature of the motor body is high, it is a motor fault; Troubleshooting method for communication failure between the main chip and the computer, check if the wiring between the electronic control and the computer is normal; Replace the indoor electronic control motherboard.

Jinling Town air conditioning maintenance supplier

Xuegong Hongxiang Home Service Department in Linzi District specializes in air conditioning maintenance, air conditioning relocation and other services. The company has a professional and efficient air conditioning maintenance team, and all air conditioning maintenance personnel are certified to work. The company's employees have undergone strict training and have many years of experience in air conditioning maintenance and air conditioning relocation. All employees should behave appropriately, have excellent skills, provide attentive service, and use civilized and standardized language. The center adheres to the service tenet of "attentive service, wholehearted dedication", with reasonable air conditioning maintenance prices and skilled workers. Our company has many years of experience in air conditioning maintenance and trains air conditioning maintenance employees every year. All air conditioning maintenance personnel hold certificates. Our company has strong technical strength, many talents, high personnel quality, good service quality, and reasonable fees.