Air conditioning is not cooling after power is not heating, the crude pipe frosting quickly Symptom: boot does not cooling after heating, the crude pipe frost soon after shutdown, measured as 8Kg (due misjudgments pay more Freon), after power Xuzhou central air conditioning maintenance, rapid pressure drop to zero. Analysis: The boot lid inspection, found a four-way solenoid valve screw off, resulting in a four-way valve is not in place, the emergence of high and low string gas. Treatment: screwed to the four-way valve coil, that is to recover part of freon pressure is normal, the boot is working properly. Thermal protection repair the air conditioning and fluoride old! Today to an air conditioning and fluoride, air conditioning, a little old, about 2 o'clock in the afternoon. Plus a little bit. 0.3 gauge, ammeter 3.8A. Then add a few moments, the gauge 0.4 meter beyond the rated current of 4A 4.2 meter nameplate off valve table, suddenly blooms current 7.2A, next to the thermal protection. Then emptying the master table when the table is negative did not notice. Unscrew the screws fluoride tube air-conditioning maintenance, which may enter the air. Causing the ice block. Stopped two hours later, open air survey meter gauge 2.6A 0.3, then add a little bit to open the valve, pressure gauge 4.5 meter 4.2A dare added. Just above the three-way valve and a small amount of frosting finish. Should still have a little lack of fluoride, but the current is already high, what is the press is faulty, or capacitance effect declined? Or are there other reasons? (This machine is cold before the exchange, now replaced by cooling only, fan and compressor using a power cord) Sheng Erda air conditioning repair center to remind you: two reasons outside electrical and mechanical wind capacity is not enough, there is the compressor problem. Fluoro-less cooling is not good, so much fluorine is not on good refrigeration it? Of course not! Evaporation pressure is high, the temperature of the evaporator is also high (words of the people is called the evaporator is not cold) since it is not cold evaporator and the ambient temperature of the temperature difference is small, the heat is also poor, how cool or heat will be better! So how do you know fluoro just good? Very simple way; evaporator dew or frost just over (if the relative humidity is relatively low, that is, the air humidity is relatively dry, so the evaporator may not be able dew or frost)! People often ask; how fluoride, how much pressure is applied to the current standard is .... Generally evaporation pressure (low pressure) is half the equilibrium pressure. That is to say; refrigeration when (the machine operation) of pressure should be no half work before the machine, such as fluorine tank pressure 1.1Mpa, that about low pressure normal pressure is 0.55Mpa. The machine has a nameplate rated current Xuzhou air conditioning repair phone, it refers to the standard current in standard operating conditions. But conditions of your work is simply not so standard, if you go by this current increase, it would be wrong. In general, this current is and condensing pressure (hypertension) is proportional to! (Some people say the current low pressure to go along with, and that is wrong, such as the press, the four-way valve string of gas, high pressure is not high, not low and low voltage, high current does not this time) will be subject to additional current voltage effect, higher voltage, current will be smaller, and some low-voltage, current will large! These high-frequency inverter air conditioner, current will be bigger, a little low frequency current is small. The pressure is the same; the inverter air conditioner turn faster, low pressure will be lower, the press turn slower, relatively higher pressure (so-called high and low pressure are relative balance in terms of) Xuzhou Hisense air conditioning sales calls, Sheng Erda refrigeration, air-conditioning maintenance provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou Hisense air conditioning sales calls, Sheng Erda refrigeration, air-conditioning maintenance is Xuzhou Sheng Erda Refrigeration Electrical Services Limited (xzktw.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Liu Wanhai.