15201550 series power injector the power injector air pwrinj1500 2 has three leds on the front end of the case monitoring the power injector leds you can use the ap power fault and ac power leds to check the power injector status the leds provide the following status information ap power ledmdashturns solid green after successful discovery indicates that power injector is supplying power to the access point fault ledmdashturns solid red when a fault occurs during dis