Chongqing Midea Air Conditioning Service Telephone 24-hour Customer Service Hotline:

Note to users: If you need maintenance service, please call or consult the customer service girl online, provide your address and service information, and the customer service will check whether the service can be provided in your area for you!

Solutions to faults such as air volume noise of central air conditioning

1, causes and solutions of slow indoor cooling due to normal or low dew point temperature of the machine.

① The air supply volume is less than the planned value, and the air exchange frequency is less. Please check whether the fan model meets the planning requirements, whether the impeller rotates correctly, whether the belt is loose, and open the air supply valve to eliminate the shortage of air supply.

(2) There is a secondary return air system, and the secondary return air volume is too large. Please adjust and reduce the secondary return air volume.

(3) The air distribution in the air conditioning system room is uneven. Please adjust it to make the air distribution in each room even.

2. The causes and solutions of the measured air volume of the system being greater than the planned air volume.

(1) The actual resistance of the system is less than the planned resistance, so the fan air volume increases, and the fan revolution can be changed when conditions permit.

② The fan capacity is too large during planning. Please turn down the air conditioning valve to reduce the air volume.

3. The reason why the measured air volume is less than the planned air volume and the solution.

(1) The actual resistance of the system is greater than the planned resistance, and the fan air volume decreases. If conditions permit, improve the air duct components and reduce the system resistance.

② The system is blocked. Please check the possible blockage in the cleaning system.

(3) The system leaks, so it should be stopped.

(4) The fan fails to reach the planned capacity or the impeller rotates in the wrong direction, and the belt slips. , and check and eliminate the factors that affect the fan output.

4, indoor noise is greater than the planning requirements of the reasons and solutions.

① The fan noise is higher than the rated value. Please measure the noise of the fan to see whether the impeller of the fan touches the shell, whether the bearing is damaged and whether the shock absorption is good. Take appropriate measures.

(2) The wind speed of air ducts, valves and tuyeres is too high, resulting in airflow noise. Please adjust various valves and tuyeres to reduce excessive wind speed.

③ The noise elimination equipment of the air duct system is not perfect, so please install noise elimination elbow and other equipment.

5. The reasons and solutions for the discrepancy and big difference between the total air supply and the total air intake of the system.

① The air volume measurement method and accounting are incorrect, please check the measurement and accounting data.

(2) If the system leaks or is short-circuited, please check the plugging and eliminate the short circuit.

6. Causes and solutions of uneven distribution of indoor wind speed and dead angle

(1) The air distribution planning is not thorough. Adjust the position of air supply outlets or increase the number of air supply outlets according to the measured air scatter diagram.

(2) The air volume adjustment of the air supply outlet is uneven and does not meet the planned value. The air volume of the air supply outlet should be adjusted to meet the planning requirements.

The company is a comprehensive service enterprise specializing in home appliance maintenance, home appliance disassembly, home appliance cleaning and maintenance, and after-sales warranty. We have strong technical force and professional technical personnel. Our company has maintenance points all over the city, with 24-hour service and uninterrupted holidays. As long as you call, we will quickly come to the door for repair, and the phone is special.

Chongqing Midea Air Conditioning After-sales Service Phone | National Unified 24-hour Customer Service Center (National Joint Guarantee) National Repair 24-hour Service Hotline

If our air conditioner is broken, but we don't want to throw it away, we must repair it. How to maintain the air conditioner? Many people haven't cleaned their rooms after installation. If they don't clean up for a long time, it will do a lot of harm. How to maintain the hazards of not cleaning the air conditioner? Let's take a look!

First, how to maintain the air conditioner?

Summer and winter are the peak periods of air conditioning use and air conditioning failure. According to the survey, many home appliance maintenance departments will receive many air-conditioning maintenance orders in summer, and at this time, many home appliance maintenance departments will take this opportunity to make a fortune. When many maintenance personnel come to repair users, they often turn a small problem into a big problem. Maybe your air conditioner is just a circuit board fault, and the maintenance cost is at most tens of yuan. The maintenance staff will tell you directly that the parts in the air conditioner are faulty. At this time, the price of air conditioning maintenance has risen several times on the original basis, and such problems often occur during maintenance.

In the market, there is no uniform price for air conditioning cleaning and maintenance. Under normal circumstances, regular businesses follow industry standards when setting air-conditioning maintenance prices. Before consumers ask for air-conditioning maintenance, employees usually inform users of the relevant air-conditioning maintenance prices according to the company's consumption standards. If users have questions about the maintenance price, they can directly call the service hotline of the merchant or visit the company's maintenance website to verify the corresponding product maintenance price.

Users can check whether their air conditioners are still under warranty when carrying out air conditioner maintenance, and there are also relevant provisions on the three guarantees of products in relevant laws in China. "Three Guarantees Validity Period": The validity period of three guarantees is calculated from the date of invoice, deducting the time occupied by repair and the time when there are no accessories to repair. Among the first batch of 18 products issued by the state to implement the "three guarantees", the validity period of watches, color TVs, household air conditioners and other complete machines is divided into six months to one year, and the main parts are one to three years.

Second, the harm of not cleaning the air conditioner

1, spending money on electricity: it will increase the loss of electricity, and the electricity consumption will increase by about 30%.

2, affecting refrigeration: the deterioration of refrigeration effect is not entirely determined by Freon, it may be that the air conditioner needs cleaning!

3, breeding bacteria: air conditioning will always smell an odor. Air conditioning is not clean for a long time, which will breed all kinds of bacteria and easily cause harm to health.

4, noise: the air conditioner is not clean for a long time, and it will make a harsh sound for a long time, affecting family rest.

5. Reduce the service life: the dust inside the air conditioner increases, and the internal parts will be worn when the air conditioner is used, which will aggravate the aging of the air conditioner and greatly shorten the service life of the air conditioner.

Service commitment:

1. City-wide door-to-door service, no rest on Saturday and Sunday?

2. Provide on-site service in strict accordance with the appointment time, keep the reputation and keep the appointment.

3. Check first, then show the quotation sheet, open and transparent, and provide honest service.

4. In the process of maintenance, if you need to use the customer's facilities or move the goods, you should get the customer's consent and ensure that the goods are not damaged. If it is damaged, you must compensate the customer.

The maintenance fee has included the door-to-door fee. If the master cancels the service due to the customer's reasons, 30 yuan will be charged the empty running fee. In addition, the price in this case is not used as a reference for charging, let alone the actual transaction price. The actual transaction price is subject to the unified charging standard presented by the master. )

Professional home appliance repair, installation and maintenance, honest service, quality assurance, rich maintenance experience, making money with conscience, relying on technology to eat, and truly serving users, we have maintenance points in all areas of the city, no matter rain or shine, no matter far or near, holidays are endless, as long as you call, we will quickly come to your door to serve you. Welcome to inquire or repair!

Chongqing Midea Air Conditioning After-sales Service Phone | National Unified 24-hour Customer Service Center (National Joint Guarantee) National Repair 24-hour Service Hotline

1. What's with the loud air conditioner?

1. If the installation stability of the indoor unit is not good, the copper pipe is connected to the indoor unit when the outdoor unit of the air conditioner is running. If the indoor unit is not stable enough, it will be affected by the compressor, thus causing the vibration of the indoor unit. Installation of indoor unit of air conditioner The installation of indoor unit of air conditioner and the connection of outdoor unit also affect the regular use and noise of air conditioner.

2. The noise value of the compressor is very high, which directly affects the use and rest of our normal users. Therefore, air-conditioning compressor is one of the sources of air-conditioning noise.

3. Bian Xiao thinks that the main noise source of air conditioning is the air outlet of air conditioning. When the wind speed of air conditioning is too high, the noise value of air conditioning will gradually increase, which is one of the main sources of air conditioning noise.

4, noise, the process of air conditioning panel loosening When the air conditioner is used for a long time, the air conditioning panel is easy to loosen for various reasons, and the vibration generated when the air conditioner is running will make the panels rub against each other.

The air conditioner will be tested when it is installed, so there will be no obvious problems just after it is finished. But after a period of time, noise may appear, which will not only affect your life, but also easily disturb your neighbors. What's with the loud sound of the outdoor air conditioner? The first thing to consider is that the installation structure is loose. Usually, outdoor units are fixed to the wall with a set of simple tripods. If they are loose, the compressor will make a lot of noise when it is running, which may lead to greater danger if it is not repaired in time.

6. The compressor is the core equipment in the outdoor unit of the air conditioner, and it will generate relatively large vibration during operation. At the same time, there are a lot of copper pipes in the outdoor unit, which are mainly used for heat exchange. The strength of these copper pipes is not very high, which may cause vibration and noise with the operation of the compressor. The solution is simple. As long as the outdoor unit is turned on and the copper tube is properly reinforced, the noise can disappear.

7. What's with the loud air conditioner noise? In addition to the installation problems and the reasons of the equipment itself, there are cases of simple aging. Every air conditioner has a certain service life. Over the years, all parts will be deformed and the compressor will be worn to varying degrees, so the noise will become louder and louder. There is no good solution to this situation. Proper lubrication can be carried out to reduce noise. Of course, the most thorough way is to replace the brand-new air conditioner.

Causes and solutions of air conditioning not heating

1, filter dust:

As we all know, the filter screen will inevitably get a lot of dust when it is used for a long time, which will easily lead to the heat in the air conditioner not being discharged in time, thus leading to the air conditioner not heating. To this end, you need to clean the dust and foreign matter in the vent in time. If it is not cleaned in time, it will lead to a smaller air volume and no heating.

Solution: Cleaning the filter regularly helps to clear the air outlet and make the air conditioner heat normally.

2. There is something wrong with the air conditioner capillary or one-way valve:

It is similar to human capillaries, mainly composed of capillaries with an outer diameter of 3.5 to 5 mm and a water supply circuit with an outer diameter of 20 mm. The check valve is mainly used to prevent oil flow from flowing backwards and air from flowing backwards. If there is a problem between the two, it will lead to the air conditioner not heating.

Solution: Replace the capillary or one-way valve immediately to make the air conditioner heat normally.

3. The outdoor temperature is too low:

Of course, if the outdoor temperature is low, it will also affect the normal use of air conditioners. Usually when the outdoor temperature is low, the indoor air conditioner can't heat, because the air conditioner can't defrost in this case.

Solution: Use special equipment to clean the frost on the air conditioner, so that the heat can be heated normally.

4. Air conditioner is short of fluorine:

Fluorine deficiency in air conditioning will affect the heating or cooling effect. At present, most air conditioners are heat pump air conditioners, and this kind of air conditioner must use Freon to operate normally.

Solution: At this time, you need to ask professionals to add fluoride to the air conditioner, so as to ensure the normal operation of the air conditioner.

Service commitment:

1. City-wide door-to-door service, no rest on Saturday and Sunday?

2. Provide on-site service in strict accordance with the appointment time, keep the reputation and keep the appointment.

3. Check first, then show the quotation sheet, open and transparent, and provide honest service.

4. In the process of maintenance, if you need to use the customer's facilities or move the goods, you should get the customer's consent and ensure that the goods are not damaged. If it is damaged, you must compensate the customer.

The maintenance fee has included the door-to-door fee. If the master cancels the service due to the customer's reasons, 30 yuan will be charged the empty running fee. In addition, the price in this case is not used as a reference for charging, let alone the actual transaction price. The actual transaction price is subject to the unified charging standard presented by the master. )

Description of user's application for maintenance: We provide on-site service, and discuss first before maintenance. If the quotation is not satisfactory, you can give up maintenance. There are 36 service outlets in Beijing. After receiving the repair report, they send orders nearby and usually arrive at the repair site within 1 hour. Maintenance master, all equipped with motorcycles. We provide free on-site inspection. After on-site inspection, if the machine is out of your budget due to major failure or unsatisfactory quotation, it is not worth maintaining. , it will not be maintained. You only need to pay 30 yuan's inspection fee! (that is, the gas money of the car).

Some personal maintenance departments, under the banner of free on-site inspection, attract users' attention, often repair or do not have to pay high on-site fees. The company strictly promises never to exaggerate mistakes and never to charge fees. After maintenance, a formal service list (warranty list) will be issued for 3 months to 1 year (according to the regulations of the members of Beijing Household Appliance Maintenance Association). Some informal companies will extend the warranty period by two or even five years. Will these companies still exist in a year? Is it rare that someone can't find the warranty after repairing the machine? )

Our company strictly promises that the original maintenance failure will occur during the warranty period, and we will be responsible for free maintenance. Completely solve your worries.

It is hereby stated that if an agreement is reached with the workers privately, the company will not be responsible for the failure of electrical appliances without asking for a maintenance order after maintenance!

Because it is formal, it is professional. The whole city is covered, so it is faster, and the whole process is guaranteed and assured.

Welcome hotels, hotels, hospitals, companies and other enterprises and institutions to call for long-term cooperation. Service tenet: The company adheres to the business philosophy of "sustainable service". Willing to cooperate with customers and units for a long time and be close friends of customers.

Air conditioning refrigeration mode:

Low-pressure gaseous refrigerant is sucked into the compressor and compressed into high-temperature and high-pressure gas; Then the gaseous refrigerant flows to the outdoor condenser and gradually condenses into high-pressure liquid in the process of radiating heat to the outdoor; Then the pressure is reduced by the economizer (the temperature is also reduced), and it becomes a gas-liquid mixture with low temperature and low pressure. At this time, the refrigerant mixed with gas and liquid can exert the "power" of air conditioning refrigeration: it enters the indoor evaporator, vaporizes continuously by absorbing the heat in the indoor air, reduces the indoor temperature, and at the same time becomes a low-pressure gas, which enters the compressor from the beginning. So that the air conditioner can continue to work.

Refrigerant will evaporate at low temperature and low pressure, resulting in cold effect; And condense at normal temperature and high pressure to release heat to surrounding environment or cooling medium. Steam condenses at normal temperature and high pressure to become a high-pressure liquid. It needs to be reduced to the evaporation pressure before it can enter the container. The liquid vaporization refrigeration cycle consists of four processes: working medium vaporization, steam pressurization, high-pressure steam condensation and high-pressure liquid decompression.

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