TROUBLE SHOOTING GUIDE NO. FAILURE CAUSE ERROR CODE OUTDOOR DISPLAY SOLUTION 1 Indoor Ambient temperature sensor fault E1 / 1.Check whether the sensor is in the right position and connected to PCB properly. 2.If position is right, then the sensor must be broken and need to be replaced 2 Outdoor coil temperature sensor fault E2 / 1.Check whether the sensor is in the right position and connected properly. 2.If position is right, then the sensor must be broken and need to be replaced.
