Air conditioning maintenance slips the tongue, air conditioning maintenance formula

No, this is based on a situational analysis. Before, there was a simple circuit.

1 The air conditioner is not refrigerated well or does not refrigerate.

This problem is the most common, and the lack of fluoride in air conditioners is the key.

Turn on the machine first touch the trachea and judge by the temperature.

If the machine is cool, the fan speed may be low.

The inner tube is scaly and dustproof, cleaned or replaced.

If the inner tube is not too cold, the thick tube may be flattened.

The return air temperature is not cold, and then touch the intake air to judge.

The intake is cold and frosty, add fluoride and try it again.

If the frost slowly disperses, it must be a good decision for fluoride deficiency.

It is not difficult to see the aging of the press, and the lack of exhaust is the focus.

Four-way gas is also common, which is judged by fluoride collection.

High-pressure scales must be seen, and if they are dirty, they will refrigerate slowly.

2 The press does not start, and the temperature setting is fine.

But there is no reaction when the power is on.

If the press does not rotate the fan, you must look at the capacitor first.

The capacitor bulge needs to be replaced, and the capacitor is excluded from the power supply.

If there is a power checker, overload protection is key.

If there is no power supply in the house, first check the connecting cables.

Secondly, we should look at the temperature control, and the temperature control should be replaced.

The relay is a key point, and the front drive should be judged.

If all of the above are normal, the following things will be easy to do.

Motherboard repair or replacement, ask the user before deciding.

3 The air conditioner will be turned on empty.

Don't mess with this beforehand, disconnect the external cable.

It is good to judge whether it is inside or outside, and it is good to judge and do good work.

The external unit is easy to deal with, four-way press and fan.

Break the line one by one, and replace it if it is broken.

Finally, check the connecting wire, the mouse gnawed and leaked.

It is difficult to deal with the failure of the internal machine, and the wind swing of the fan is judged first.

Take out the motherboard and take a closer look to see if there is a UMC.

It's really difficult to repair the board, and making money is the key.

4. Thermal protection for a while when the press starts.

The air conditioner is turned on with cold air, and the temperature then increases.

After a while, the cold air turned into hot air, and the press outside stopped.

At this time, first look at the external fan, whether the speed is low or not.

If the capacitor is low, it is not a capacitor fan.

Secondly, look at the condenser, if it is too dirty, it needs to be cleaned.

If you add too much fluorine and the current is large, the press will also stop.

The capacitance of the compressor should also be seen, and it is best to replace it according to the original machine.

5 The air conditioner does not turn on.

The air conditioner is powered on to experiment, judging by the ticking sound.

There is no beep to check the power supply, and then look at the motherboard.

If there is a beep to follow, press the start button first.

The air conditioner is easy to do when it starts, and the remote control damage is judged first.

Exclude remote control check reception, infrared reception first replacement.

Check whether there is power supply again, and the signal line is repeated.

Then power on and experiment again to see if the air conditioner turns.

If the air conditioner does not turn, the large piece will be damaged.

Here's how to get your air conditioner repaired quickly:

This problem is the most common, and the lack of fluoride in air conditioners is the key.

Turn on the machine first touch the trachea and judge by the temperature.

If the machine is cool, the fan speed may be low. Or staring blind.

The inner tube is scaly and dustproof, cleaned or replaced.

The return air temperature is not cold, and then touch the intake air to judge.

The intake is cold and frosty, add fluoride and try it again.

If the frost slowly disperses, it must be a good decision for fluoride deficiency.

It is not difficult to see the aging of the press, and the lack of exhaust is the focus.

Four-way gas is also common, which is judged by fluoride collection.

High-pressure scales must be seen, and if they are dirty, they will refrigerate slowly.

Precautions for repairing air conditioners:

1. First of all, check whether the air conditioner is operating normally, including the indoor unit and the outdoor unit, especially the compressor of the outdoor unit, as long as one of them is not running normally, you need to ask a professional master to come to the door for maintenance.

2. Check the filter screen of the air conditioner, if the air conditioner can be started normally, but it can not emit cold air, it is likely that the filter screen is too dusty, and the better way is to spray it with that special filter cleaning agent.

3. If the air volume of the fan is very small, then it may be that the fan motor is old and needs to be replaced with a new one.

4. Check whether the refrigerant is insufficient, that is, the so-called freon, if it is insufficient, add freon, and check whether the cold circulation system has air leakage, if there is air leakage, you have to make up for the leakage.

5. If the air conditioner is running normally, and everything else is in good condition, but the room does not feel the cold air, only to the air conditioning air vent to have the air conditioner, it is likely that the horsepower of the air conditioner is too small, and the space in the room is too large.

Summer is here again! It's time for record-breaking temperatures again. It's hard to live without air conditioning.

Every summer, there are many vehicles lined up to get their air conditioners repaired. As a repairman, I also sweated. Today, we will send you a "smooth slip" to cool and repair your air conditioner.

It's easy to keep this secret in mind! Automobile air conditioning maintenance jingle (formula) pressure double low refrigerant loss, otherwise there is a blockage, check the blockage through throttling, and the blockage can be detected. Dual pressure should expel the air, not the refrigerant and air.

Note that the sewage condenser is clogged and the throttle valve fails. Your hands are shaking because of the moisture, so remember how to remove the moisture. Low pressure, low pressure, need to change the compressor.

If there are difficulties, we will rise to them and make great achievements after careful consideration. The following is a detailed analysis of the detailed meaning of the car air conditioning maintenance formula. 1.

When the air conditioning pressure gauge detects that the low pressure of the air conditioning system is higher than the normal value and the high pressure is lower than the normal value, the air conditioning refrigeration can never achieve the normal air conditioning effect. In general, the failure is due to a drop in power due to wear and tear on the air conditioning pump. In this case, it is often necessary to replace the compressor to solve the problem.

2.When the high and low pressure of the system is higher than the normal value, according to the formula, the common fault is that there is too much air or refrigerant added to the system. At this point, it is necessary to re-evacuate and then add the appropriate amount of refrigerant to solve the problem.

However, there is also a situation where the heat dissipation is not good, especially when the ambient temperature is relatively high, which often leads to worse heat dissipation. The causes of this failure are generally clogged fins, dust, insufficient cooling fan speed, etc. 3.

When the air conditioning system is working, if the pressure gauge pointer keeps shaking, it means that there is water in the system. To solve this problem, it is generally necessary to re-vacuum for at least 15 minutes. If necessary, the drying bottle needs to be replaced to completely drain the water from the system.

4.When both high and low pressures are low, there are two possibilities: one is that the system is clogged.

When the system is blocked, throttling will occur in the blockage area, and there will be a significant temperature difference in the throttling area. Problems can be detected by touching them with your hands. Another possibility is a refrigerant leak, resulting in a lack of refrigerant.

This is fairly common. At this time, it is necessary to use an air conditioner detector to find the leaking part, or replace or repair it. 5.

If the measured high pressure value is normal, the low pressure chain value is too high, and the ratio of high and low pressure values is much less than 8, this phenomenon generally means that the working effect of the compressor is reduced, and the compressor should be repaired and replaced if necessary. If the ratio of high pressure to low pressure value is slightly less than 8, it is the improper installation position of the temperature sensing tube of the expansion valve, resulting in excessive opening and poor throttling effect. Adjust its mounting position so that it is as close to the evaporator as possible.

To summarize the above methods of automotive air conditioning repair and mechanical troubleshooting, it is a sentence that we can remember in actual maintenance, which helps to quickly find and troubleshoot faults. Have you learned? Of course, if the quality of the air conditioner product is excellent, it will save a lot of trouble.

No matter how hot or bad the weather is, don't be afraid.

1. This problem is the most common, and the lack of fluoride in air conditioners is the key.

2. Touch the trachea back to the air tube before turning on the machine, and judge it by the temperature.

3. If the machine is cold, the speed of the fan may be low.

4. The inner tube is flakes and dustproof, cleaned or replaced.

5. If the inner tube is not cold, the thick tube may be flattened.

6. The return air temperature is not cold, and then touch the air intake to judge.

7. The air intake trace is cold and frosty, add fluoride and try it again.

8. If the frost slowly disperses, it must be a good decision for fluoride deficiency.

9. It is not difficult to see the aging of the press, and the lack of exhaust is the key.

10. Four-way gas is also common, which can be judged by fluoride.

11. High-pressure scales must be seen, and they will be slow to refrigerate if they are dirty.

12. If the press does not rotate the fan, you must look at the capacitor first.

13. The capacitor bulge needs to be replaced, and the capacitor is excluded for power supply.

14. If there is a power supply check machine, overload protection is the key.

15. If there is no power supply in the house, check the connecting wires first.

16. Secondly, we should look at the temperature control, and the temperature control should be replaced.

17. The relay is a key point, and the front drive should be judged.

18. If the above are normal, the following things will be easy to do.

19. For motherboard repair or replacement, ask the user to make a strong decision.

The convenient formula is that the refrigeration effect is not good, check the capacitance, see if the freon is enough, whether there is a problem with the power supply, and whether the compressor is working; You can't turn it on to see if the capacitor is broken, whether the power supply is not plugged in, and whether the home is out of power. 1.After a while, the cold air turned into hot air, and the press outside just stopped working; When congratulating this brightly, first look at the external fan to see if the speed is low; If the capacitor is switched on the low side, it is not a capacitor fan; Second, look at the condenser.

If it's too dirty, it needs to be cleaned. If there is too much fluorine and the current is too high, the press will stop working. The capacitance of the press should also be seen, and it is best to change it according to the original machine.

After a few seconds of powering on the printing press, the power supply line of the printing press will be disconnected by protection, and the external line will be judged; If the power check is normal, otherwise, change the capacitor first; If the press is rotating properly, pipe blockage is key; If the press does not turn, replace the press at this time. 2.The most common problem is that the air conditioner is not refrigerated well or does not refrigerate, and the lack of fluoride in the air conditioner is the key; Start the machine and touch the trachea first, and judge by the temperature.

If you check the indoor unit in cold weather, the fan speed may be low. Inner tube scales are enviable and dust-proof, cleaned or replaced; If the inner tube is not cold, the thick tube may be flattened. The return air temperature is not cool, and then feel the air intake to judge.

The air intakes are cold and cold. Try again with fluoride. If the cream slowly dissipates, it must be a good decision for fluoride deficiency.

It is not difficult to see that the aging of the press is that the lack of exhaust is the key. Cross-ventilation is also common and can be judged by the collection of fluoride. The high-pressure scale must be seen, it will slowly cool down when it is dirty.