Xuzhou 圣尔达 Refrigeration Electrical Services Ltd. fan does not run Cause 1: The master switch is bad exclude: When the master switch with a multimeter to measure the contact resistance Xuzhou conditioning maintenance shift, the resistance is too large or zero should be repaired or Replace the handle Cause 2: The fan motor coil damage exclusion: use a multimeter to check, replacement of the same size, the same reason the fan motor speed 3: between the fan motor and fan set screws loose exclusion: the set screw tightening Reason 4: fan capacitor circuit or short circuit excluded: Check the capacitor, the capacitor to replace the same specification Xuzhou 圣尔达 Refrigeration Electrical Services Ltd heating and air conditioner heating and cooling regulator failure Reason 1: solenoid valve coil Troubleshooting: measuring electromagnetic transducer with a multimeter the valve coil Xuzhou central air conditioning repair, if the case of the coil circuit or burned, should be replaced with a new solenoid valve specifications Reason 2: Electric heating device Troubleshooting: Check Xuzhou multimeter Daikin central air conditioning maintenance, replacement of the same size or electric heating wire temperature protection Reason 3: Temperature controller failure to exclude: Use a multimeter to check the thermostat, to make contact after sewage treatment, such as rust is still valid, you should replace the same specification temperature controller Xuzhou Gree air cleaning and maintenance, air conditioning maintenance, St. Jorda cooling provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, in Xuzhou heat exchangers, 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 and you hand into the brilliant, for a better future!