家用空调刚用了3年，不制冷了什么原因
1.房间太大，空气调节马力不足，这会使人们感到空调不会冷藏；大多数空调都难以将室内热量传递到室外。导致窗户机器的空调自身冷藏：1。如果刚刚购买的空调不会冷藏，请考虑空调是否有质量问题。建议购买前线品牌空调。质量和销售之后都可以获得保险。 2.空调压缩机的问题太长，压缩机正在老化，效果还不够。像空调的声音一样，振动也相对较大，因此您需要考虑压缩机问题是否存在。 ，或考虑购买新机器。 3. Freon（也称为雪种，制冷剂）不可用或不足，这会导致冷藏效率低，效果差或不制冷。需要使用Flun添加此类问题。 （1）对于制冷管道上的油迹线，即管道泄漏点的窗户，特定的操作步骤如下：1。切断过滤器工艺管的一小部分，一小部分阀门（制冷设备商店都有商店。销售，约2元）插入剩余的工艺管，约为L0mm；或长度约为200mm，直径为4mm的铜管，一端插入剩余的过程管中，另一端用三个链路焊接。连接维护阀的铜管。 2.在冷藏管道上焊接泄漏点后，同时打开压缩机和真空泵，以便将管道中的空气循环拆除以加快真空。 3.连接氟瓶和三路维护阀，并在连接的管道中排出空气。在空调状态下，氟瓶倒置为氟化物，并称量更准确的计量工具，例如表秤。当氟瓶中的氟含量等于氟氟的量时，氟瓶的瓣膜立即被关闭。以免添加过多的氟。从过滤器上的过程管增加氟化物。只要管道系统的真空合格，氟化物速度就会很快。在正常情况下，三分钟内的氟化物量可以达到空调的额定量。 （2）对于多年有偏置制冷效果的窗户空调，但是管道上没有泄漏点，具体的操作步骤如下：1。使用压力板测试并写下氟瓶中的氟在当前环境温度的当前环境温度下，准备饱和压力值。 2.连接荆棘阀，三路维护阀和荧光瓶，并在连接管中排出空气。 3.在空调状态下，首先将荆棘阀放入过滤器过程中，旋转手柄穿透了过程管的外壁，然后打开氟瓶，三道维护阀和荆棘阀，并在面粉瓶中添加少量氟化物。用上述控制氟体积），然后关闭三道维护阀。 4.首先放置10分钟，然后观察三道维护阀上压力表的压力值（高压）。在压力值时启动压力表的压力表的压力值（高压）表明氟化物是准确的。例如：环境温度为3°C，氟瓶中氟的饱和压力为1.19mpa，相应的高压压力为1.67mpa，这意味着氟是准确的。
为什么电脑会突然黑屏，但主机却还是开着的
This situation is generally due to computer memory, graphics, or system black screen. Solution: Unplug the memory bar and check it. You can wipe it with a rubber; if it is a graphics card problem, you need it. Re -install the graphics card driver; if there is a problem with the computer system, you can only reinstall the system. Display black screen failure solution: A. Check the host power, whether the work is normal. First of all, to see if the host chassis panel power indicator is bright, and whether the power fan is rotated to determine whether the host system has obtained the power supply. Secondly, check whether the external voltage meets the requirements with a multimeter, and the voltage is too high or too low may cause the automatic stop protection of the host electrical source over voltage or the underwriting voltage circuit.另外，重点检查电源开关及复位键的质量以及它们与主板上的连线的正确与否都有很重要，由于许多劣质机箱上的电源开关及复位键经常发作使用几次后便损坏，形成整No black screen display. If the power is damaged, the power supply can be resolved. B. Check whether the power supply is connected. There is a sound of "一" when the display is powerfully power, and the power indicator of the display is on. When the user moves to the display screen, there is a "咝咝" sound, and the sweaty hair of the hand is raised. C. Check whether the display signal line and the graphics card are in good contact. If there is a large amount of dirt at the interface, the broken needle and other damage will lead to poor contact, and the display is black. D. Check whether the graphics card is in good contact with the motherboard. If the display of the display and the horn in the host emit a long bee sound, there is a problem with the connection between the graphics card and the motherboard, or the connection between the graphics card and the monitor can check whether the slot contact is good well. Whether there is a foreign body in the groove, and the mixer card is tested for a motherboard slot to determine whether there is a problem with the slot. E. Check whether the graphics card can work normally. Check whether the chip on the graphics card can be burnt, cracking traces, and whether the cooling fan on the graphics card work, and whether the heat dissipation performance is good. Change a normal graphics card to eliminate whether it is damaged by the graphics card. F. Check whether the contact with the memory strip and the motherboard is good and whether the quality of the memory strip is excellent. If the black screen and the host make continuous bee sounds when the computer starts, most of them indicate that there is a problem with the memory bar. You can focus on checking the installation contact status of memory and memory grooves, re -insert the memory bar, or change the new memory bar. G. Check whether the fan in the case rotates. If the heat dissipation fan in the case is damaged, the heat dissipation will be formed. In severe cases, the CPU and other components will be damaged or the computer is automatically stopped and the alarm will be issued. H. Check whether other board cards （such as sound cards, decompression cards, videos, capture cards） and the motherboard's slot are good and whether the driver's signal line connection is correct. Many people often ignore this. Generally, the computer black screen is a problem with the display part, which has nothing to do with other devices. In fact, the installation of equipment such as sound cards is incorrect, which makes it difficult to complete the system initialization, especially the data cable interface of the hard disk, which is also easy to form without display. I. Check whether the CPU is overclocking, whether the contact between the CPU and the motherboard is good, and whether the CPU cooling fan is intact. If the overclocking causes the black screen, then the CPU can be jumped back to the original frequency. If the contact is poor, remove the CPU and reinstall it, and use the quality high -power fan to cool the CPU. J. Check the parameter settings. Check whether the CMOS parameter settings are correct. If the CMOS parameter settings are not properly set and the black screen is caused, the computer does not start, you must turn on the chassis, and start to restore the CMOS default settings. K. Check whether the virus causes the display black screen. If the virus forms a black screen, the latest version of anti -virus software can be processed at this time, and sometimes the BIOS program needs to be rewritten.
空气能热水器不加热是什么原因
1.可能是温度问题
当空气热水热水器的工作温度高于-5°C，并且环境温度低于-5°C时，会降低空气能热水器的功能。因此，流出的水没有预期的温度，功耗很大。
2.可能是压缩机被烧毁
空气能热水器通常使用循环加热系统。加热水时，它将处于高温和高压环境中。这将很容易使压缩机衰老和碳化。系统润滑效果不足以导致压缩机燃烧，因此不能加热。
扩展信息
常识
规模
它会产生比例尺，因为空气热水热水泵热水器使用中等温度（55°C）和独特的专利技术“过电流间接加热”来产生热水，因此不会产生秤。在80-100°C下加热，因此很容易产生尺度，从而导致热效率降低，功耗增加，水出口压力降低甚至导致安全事故。-家用空调
温度，消耗
最合适的沐浴水温为42°C。中年和老年人可能略高于1-2°C。淋浴期间每人的水每人约40-50升。浴缸和按摩浴缸根据能力确定。
可以制作多少热水
在产品性能和理论方面，空气热水器Household热泵热水器可以回收并保持热水。在正常的温度下，每小时可以制造热水（45℃-55℃）：取决于那个单位。
