Haier inverter air conditioner KFR-120LW / K2SDY poor heating effect Analysis:-site inspection of the air conditioning and heating can, but remote control can not control the wind speed, the outlet temperature reached 35 degrees, try to convert air-conditioning mode, the cooling wind speed can be as high low. adjustment, it is possible to determine the fan motor is good. You can doubt the indoor pipe temperature sensor is broken. Results: Replace the indoor pipe temperature sensor, the test machine is normal. Experience: temperature sensor plays a very important role in the air conditioning, it can cause a lot of trouble bad hand air conditioning, in this case, the air conditioning and heating, due to anti-cold air function, room temperature sensor fan feel more than 25 degrees In low wind operation, reaching more than 30 degrees to set the wind speed operation, low wind speed above the fault was first discovered in Xuzhou used central air-conditioning acquisition, and the air temperature is high, it is necessary to check the fan is normal. When determining the normal fan, you can not check suspect temperature sensor, the fan does not cause the remote control to set the wind speed in order to operate, so replace the inner tube temperature sensor. In the fixed-frequency air in suspected bad sensor can be placed in a forced air-conditioning refrigeration state, such as air conditioners can be operated, and the current normal, generally considered bad sensor. Chunlan a boot on the trip can detect the presence of air conditioning capacitor breakdown or short circuit is not in doubt, then testing whether the inter-turn short circuit fault Chunlan. Chunlan a boot on the trip cause of the malfunction and repair methods: 1, the detection Chunlan compressor launch capacitance is not failure; repair or replace. 2, testing Chunlan is not present insulation aging, short questions: high temperature after the air conditioning operation due to short circuit between turns representation; view sweep. 3, Chunlan belong rational load, sudden current compressor when the engine is greater than the rated current of the protection device and lead Chunlan a boot on the trip doubt; replace rated current greater protection. 4, the electricity peak period, the voltage is low, Chunlan compressor current becomes large, resulting in trip condition air conditioning; avoid peak hours of electricity use or devices regulated pumps. 5, the air conditioning unit is dirty condenser fins form the heat load is too high; timely to Chunlan condenser cleaning. 6, to remove the above reasons Xuzhou hand air conditioning repair parts shall detect Chunlan air-conditioning compressor is not damaged; timely repair or replacement. Three air-conditioning repair faults, fluoride leak, leakage, leakage air leakage fluoride: summer air conditioning is not cooling is the most common, split air-conditioning joint If there is no tightening or bell cracking the case, there will be leakage of fluorine phenomenon. If air leakage fluoride, then the user would often add, normal use of air conditioning usually 2 years up freon. Air leakage: the opportunity to appear in the case of dripping, this is not a normal use of air conditioning Xuzhou hand air conditioning maintenance, mostly due to irregularities caused by air-conditioning installation, such as the machine is installed lower than the hole through the wall, the machine installation uneven and so on. Notes: After installing the air conditioner, the indoor unit drain pan to pour out, drain the natural outflow of outdoor as normal. Air conditioning leakage: power installation will be checked before air conditioning, if you do not meet the requirements, please change. Or prone to leakage phenomenon of fire, endangering personal safety of users. Socket must be grounded, install leakage protection used refrigeration air conditioning _ _ Xuzhou Sheng Erda second-hand air transfer provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, Xuzhou in Jiangsu Province of heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Sheng Erda refrigeration into the brilliant and you work for a better future!