Not sure about your problem, but if you might be interested--
I have a newly reman PD9180 w/CW. Mine went out and could not wait for shipping to factory, so bought a new one. Then went ahead and sent it in for reman. I believe the cost was $116. I'd take $100 + shipping if you want to try it.
One other item to check--you are sure both batteries are good?
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired