When the outdoor coil pipe TEMP sensor is out of order or removed, the air conditioner will set to defrost automatically in order to prevent it not working normally while the outdoor coil pipe TEMP sensor is malfunction. Fault F6: PG motor faults Fault F7: Indoor TEMP sensor faults Fault F8: Indoor coil pipe TEMP sensor faults Fault F9: Outdoor coil pipe TEMP sensor faults Galanz Air Conditioner Error Codes Wall Mounted Type Indoor unit display and solve methods of protector stop ingredients in indoor unit and outdoor unit Error Codes Trouble F1 Heat overloading protector F2 Cool freeze protector F3 Instantaneous power cut F4 direct current fan motor no feedback 1F cool overloading protector 2F exhaust overheating protector 3F over or not enough pressure protector 4F over-current protector 5F IPM protector 6F defrost state 7F direct current compressor drive exceptional 8F direct current compressor cannt start Galanz Air Conditioner Remote Contro...