Originally Posted by wmurphy
If your unit is like many others on the forum you probably have a ground issue. Our 29MVP had the same issue with the pump. Check the black ground cable at the pump to see if it is still attached. Make sure that it is actually grounding the pump. Then take a meter and see if you have 12 volts at the pump. If the ground is broken or not making a good connection you will have no power to the panel.
Thank you. I went straight to the pump and immediately saw ground wire hanging free.
Wire terminal at ground post has broken off at the pump!
Replaced terminal conductor and everything is working normal.
Thanks to all.