Xuzhou 圣尔达 Refrigeration Electrical Services Ltd heating and air conditioner heating and cooling regulator failure Reason 1: solenoid valve coil Troubleshooting: measuring solenoid valve coil with a multimeter, if the case of the coil circuit or burned, should be replaced with new with the specifications of the solenoid valve Reason 2: Electric heating device Troubleshooting: Use a multimeter to check and replace the same size or temperature electric heating wire protector Reason 3: Temperature controller failure Solution: use a multimeter to check the thermostat on the contacts for rust After the sewage treatment remains ineffective as Xuzhou hand air conditioning point of sale, you should replace the same specification temperature controller Xuzhou 圣尔达 Refrigeration Electrical Services Ltd recovered refrigerant air conditioner refrigerant must be collected from the outdoor unit. Start before disassemble the empty withered, which can be set cooling until the compressor is running for 5-10 minutes Xuzhou acquisition of second-hand air conditioning repair, cooling state to normal, unscrew the outer tube and machine liquid gas pipe protection cap on the interface, closed high pressure pipe (small) cut-off valve, pipe l minutes after the appearance of condensation Xuzhou wedding dresses install telephone, immediately turn off the low-pressure pipe (crude) cutoff valves, with the rapid shutdown air conditioning maintenance, unplug the power cord, use a wrench to tighten the cap insurance , bringing the recovery of refrigerant is completed. Can also be used to force the start button on the indoor unit turned on, with the observation of indoor and outdoor unit if there are other faults. Avoid air conditioning trouble after moving machine. Xuzhou acquisition of second-hand air conditioning repair, air conditioning repair, Sheng Erda 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!