2011 Winnebago Adventurer 32H
on the Ford F53 V10 chassis
around 6800 miles
Driving back to San Diego from Sequoia NP. Pulled into the Bakersfield Costco to fill up. After filling, wouldn't start. No click, crank, or any other indication that I had turned the key to the start position, although all the lights came on as normal. Batteries were fully charged as expected after driving for 4 hours. After calling Ford roadside assistance, (of course), the MH started as normal. I thought it was pilot error. We drove to Bakersfield RV Resort to spend the night (wonderful place, BTW) and after registration, wouldn't start again, so I couldn't get to my space. Called Ford again and was towed to the Ford dealer. After some time, they replaced the starter motor/solenoid. They said the exhaust pipe was too close to the starter motor and caused overheating and failure of the motor. The time from the second call to Ford roadside assistance until I was back to the resort was around 4 hours, and of course, there was no charge. After the repair, the service manager told be he could see there being a recall for this issue for 2011 F53 chassis to install a heat shield.
So, if you're in the middle of nowhere and experience this problem, whack the starter motor with the handle of a hammer while someone turns the key for a temporary fix, then replace the starter motor under warranty.