The sound of refrigerant flowing may be that your air conditioner is filled with too much liquid to completely evaporate. This sound may also exist when the normal air conditioner is started.
There is something stuck on the fan blade or evaporator, such as a thread end, and the fan blade makes an abnormal noise when it is executed.
The fan blade screw is loose or falls off, which causes the fan blade not to rotate normally.
What is the 3 on the display screen of the indoor unit after Mitsubishi air conditioner is turned on? After Mitsubishi air conditioner is turned on, 3 appears on the display screen of the indoor unit, representing abnormal refrigeration failure.
1. The compressor is short of refrigerant, please add refrigerant.
2. The compressor is out of oil. Let's go
3. The solenoid valve does not reverse: check whether the solenoid valve is normal, and replace the solenoid valve if it is not broken.
4. System failure: Check whether the capillary is dirty, blocked by oil or blocked by ice. If the air conditioner doesn't cool when it cools, it is usually blocked by ice. If the pipeline is blown out by nitrogen, it means it is dirty or blocked by oil. If there is no refrigerant in the system, the refrigerant is leaking. Check the leakage point for maintenance.
Air conditioning is air conditioning. It refers to the process of adjusting and controlling the temperature, humidity, cleanliness and speed of ambient air in buildings/structures by manual means.
Generally, it includes cold source/heat source device, cold and hot medium transmission and distribution system, terminal device and other auxiliary devices. It mainly includes water pump, fan and pipeline system. The terminal equipment is responsible for carefully treating the air and temperature by using the cold heat from transmission and distribution, so that the air index of the target environment can meet the requirements.
The original air conditioners and refrigerators used toxic gases such as ammonia and methyl chloride. The leakage of this gas will lead to a major accident. Thomas Midgley invented chlorofluorocarbon gas in 1928 and named it Freon. This refrigerant is much safer for human beings, but it is harmful to the atmospheric ozone layer. Freon is the trademark of CFC, HCFC or HFC refrigerants from DuPont, in which the name of each refrigerant also includes a number to indicate the molecular composition of its components (for example, R- 1 1, R- 12, R-22, R- 134). Among them, R-22 HCFC refrigerant, which is the most widely used in the field of direct evaporative moderate cooling products, will stop being used in newly produced devices from 20 10 and will be completely stopped in 2020. R- 1 1 and R- 12 have been discontinued in the United States. As substitutes, some refrigerants harmless to the ozone layer have been put into use, including the refrigerant R-4 10A with the trade name "Puron". New environmental protection refrigerants R290 and R32 are gradually entering the market. R290 only contains carbon and hydrogen, but does not contain chlorine and fluorine, and its ozone destruction potential (ODP) is zero.
When Gree air conditioner 35 is on, I feel there will be a squeaking sound in the room. What happened? Another possibility: in the refrigeration state, after the compressor is started, the refrigeration liquid will not be provided to the indoor unit immediately because the pressure needs to be established; When the pressure reaches a certain level, the solenoid valve opens instantly, and the impact on the indoor unit often produces short-term abnormal sound. ...
What's the noise of the indoor unit when Gree air conditioner is turned on for a while? The noise of the indoor unit mainly comes from the fan of the indoor unit. Please press the indoor unit with your hand to see if there is vibration.
What is the noise of Midea's indoor air conditioner (1)? Cause of failure: the wall-mounted fixed hanging wallboard is not firm and loose or the wall surface is uneven.
Maintenance method: re-fix the hanging wallboard or treat the wall surface to keep the hanging wallboard flat.
(2) Cause of failure: The motor of the wall-mounted indoor fan is improperly assembled with the cross-flow wind wheel and fan bearing, resulting in friction noise, which leads to loud noise of the indoor air conditioner.
Maintenance method: re-adjust the assembly position of indoor fan motor, cross-flow wind wheel and fan bearing.
(3) Cause of failure: indoor fan motor and cross-flow wind wheel are poorly assembled.
Maintenance method: check and judge separately. First remove the cross-flow wind wheel, and if the noise is eliminated, replace it (mostly because the cross-flow wind wheel is unbalanced or deformed); Otherwise, the internal fan motor is faulty, so replace the internal fan motor.
Gree air conditioner burns indoor unit insurance as soon as it is turned on. Hello, 220 short circuit. Check the wires for damage, moisture, grounding or motor short circuit. Wrong wiring.
What's wrong with connecting two live wires to the indoor unit of air conditioner? If it is a domestic machine, connecting two live wires is equivalent to connecting one live wire, not a loop, just connecting the zero wire.
What is the dripping sound of Hisense Hitachi central air-conditioning indoor unit? Possible causes and elimination methods of indoor machine dripping;
1. The filter screen of the internal machine is too dirty or the evaporator is too dirty, which reduces the circulating air volume and tends to have a lot of condensed water. It is necessary to clean the filter screen and evaporator.
2. The drain hole at the drain pan is blocked by dirt, resulting in poor drainage and dripping of the indoor machine. The blockage needs to be removed.
3. The drain pan and drain pipe of the drain hole are loose. It needs to be connected correctly.
4. The drain hole of the drain pan is lower than the outlet of the drain pipe, resulting in poor drainage. The drainage pump needs to be reconfigured or installed.
The above reasons will cause the water not to be discharged, and it may be that the fan took the water away from the air outlet.
As long as it doesn't drip indoors, it can be discharged to the outside smoothly, which is a normal phenomenon.
I hope I can help you. If you are satisfied, please accept it. thank you ...
What's the squeak of the monitor? Is it a CRT monitor or a liquid crystal display? Is it loud?
If the CRT display is normal and the sound is not loud, it will not affect the display.
If it is a liquid crystal display, then you should check whether the plug is plugged tightly first. Poor contact may also make a current sound. If it is not for this reason, then I have no choice but to suggest that you take it to the repairman.
Finally, I hope these are helpful to you.
There are generally several kinds: what kind do you think;
1. If the monitor is not used for a long time, the screen will turn black when the screen saver saves power. Because of static electricity, there will be a sizzling sound, which will soon be gone. This is normal.
2. After the screen is black, if you use it again, there will be ticking and creaking (if you move the mouse and keyboard); This is also normal;
3. If you can hear the creaking sound during normal use; This means that the transformer or component in your monitor makes noise; This shows that your monitor has begun to age. Either replace it or disassemble it to replace the noisy transformer or parts. That's enough.
According to your supplement, "it won't open next time after it is closed ~ it rings again in a short time":
It should be that the power contact is not good, or it is aging. When the machine is turned on for a long time, the heat of the machine will accumulate and the sound of 1 will be generated.