Nothing definite. In my rig, the fuses for the 12v HVAC control systems are all 3amp. It's possible the wrong fuses were put in at the factory. Check your manuals to see if the 2amp is the proper one.
John & Clare - Buck & Zeus - Jack & Husky
2008 Fleetwood Bounder 38P
Towd: 2 HD Streetglides