I have been thinking about the HWH systems on this 2001, 320, 36' Anyway is there any items that need looked at every so often even with no problems.<br/>Like lube, micro switch's, air compressor pressure and the magic boxes located everywhere.<br/>Have been enjoying this coach for over 2.5 yrs, not first issue with anything, <br/>Like waiting for the shoe to fall<br/>Or am I just...