Exhaust temperature is too high Cause: a refrigerant less. 2 expansion valve opening is small, fast expansion valve is broken. 3 refrigerant system dry filter blocked. 4 evaporation temperature is too high. Frozen water temperature is high, or the indoor evaporator ambient temperature is high. 5 Refrigerant poor quality, mixed with air or water, there is water, it can also cause ice blocking the expansion valve back to high temperatures. 6 is the ratio of Chak and screw machine, then there may be a compressor oil filter plugging, insufficient oil pressure, load slide valve did not move. 7 condensing ineffective, a large number of gaseous refrigerant expansion valve reflux, high temperatures can also cause back eight blocked oil filter (high pressure high and low pressure is low, then charging refrigerant high pressure alarm) 9 bearing damage caused friction mechanical parts, so that the intake air temperature is high, the motor overheating, high exhaust temperature accordingly. Tel: 010-57252758 18612215232 Zheng