Go Power GP-PWM-30-UL blank screen

[JeffreyWLittman]

We have a 2019 Escape 21 trailer with the original Go Power solar system, which has been working well for the past five years. A few days after returning from a camping trip we noticed the Go Power GP-PWM-30-UL solar controller had a blank screen. The battery input voltage was 12 volts and the solar panel input was about 28 volts, and the trailer is stored outdoors and there was a cloudy sky. After reading the Go Power website we tried first a "soft reset" from the keypad, which did not restore the screen. Then we tried a "hard reset" by removing the wire connections for 15 minutes, and this worked to restore the screen and functions. We checked the trailer a day later and all was still normal. My question for other users of this solar controller is have you experienced this screen blanking before, how did you restore function (hard reset?), and did it occur again? My thought is to replace the controller if it occurs again. Thanks.