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Changhong air conditioning maintenance summary; The reason why the fixed frequency machine can be turned on completely without refrigeration
Source: http://xrqa.cn Author: Mianyang Changhong air conditioning after sales maintenance update date: 2015-09-09 20:39

(1) If the indoor unit is normal but the external unit is not working, this phenomenon may be that the external unit is not powered on or the components of the external unit are damaged; A mouse bites off the power supply line, B, the capacitance of the external compressor is completely damaged; C. The high or low pressure protection switch of compressor is damaged; D. Large pieces of machine may also be AC contactor damage, e, such as three-phase power may be wrong phase protector damage; F. Compressor cylinder stuck; The circuit board of Q internal unit is damaged, and the external unit is not powered normally.

(2) If both internal and external machines are in normal operation, it may be: A, the snow seeds are completely leaked; B. The capillary is blocked; C. The copper pipe is broken; D. External valve is not opened.


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