The installation was done correctly, Blue Ridge EMC. A Generac dealer installed a new "motherboard" or control panel 7 years ago. It worked for about 5 months. The last Generac dealer was here last year (same problem) control panel bad again. Both repairmen stated that these units are known to have control panels that go out...It sill has only 3 hrs total run time from the "auto starts". This same dealer said to replace panel & labor would be: $950. Or they could sell me a new whole house "20kw" for approx. $8,000. installed & they would take away my old (8yrs. "20kw") for me! What a deal. I would then have $16,000. put into 2 units. Side note, an attorney from California called me to ask questions about my experience with my Generac. Something about a class action lawsuit that is being started. P.S. When I called LOWE'S to get Gen replaced or repaired they said we have nothing to do with it as you purchased it from LOWE'S Website Online!!!
If I could find an Electrician that would take off all of the electronic garbage of of this unit, I'm sure it would run fine manually.
Maintenance on that type equipment is expensive. It is a luxury item, and you pay a luxury price for it.
I was responsible for a backup unit like you see at big office buildings and hospitals.
Very expensive for routine service, and the control boards were a problem, especially when thunderstorms are common.
A total stand alone unit on its own electric bus should be more reliable, but no one does that.