Sorry to hear that you had a failure. Just glad your wife was not seriously hurt.
My suggestion. Find someone else you can trust to do the work. In my case, that is me.
Only way to make sure something is done right now a days, sorry to say. Yeah, warranty work. I understand but what good is a warranty if the work is not done properly.
But, it could have been really bad or even tragic so just count yourself lucky and chalk it up to a learning experience.
2016 Jayco Eagle 330RSTS = "Madame Maxime
Maxxis M8008 E rated Tires and 16" Wheel Upgrade
Dual A/C 15K BTU, 14K Equalizer WD hitch with SC
King Bed with Java Interior, (2X) Yamaha EF2000isV2
2012 Ram 4500, 6.7L Cummins Turbo Diesel, MegaCab = "Hagrid
8'x12' BMCM Stake Bed, Cabin Chassis, 2WD
360 degree Virtual Tour