Originally Posted by kingwood390bh
If you see temperature rise again, stop, go behind the coach and feel if fan is moving a lot of air and blowing it out the back. My fan clutch failed over a 3 month period. It led to several temperature spikes and finally had to be replaced.
I second the failing fan clutch issue. I had intermittent high temps that would vanish after a stop and not recur for many miles. Usually, the coach would sit for a while, then the fan would present as an issue, only to disappear after a roadside break.
The fan eventually seized and took the serpentine belt out with it. Both were covered under an extended warranty I bought in 2014 with my pre-owned 2009 Berk BH. The total cost for the fan repair was about $2,000.