Only one button(heater fan) on the starboard keypad in my 2001 SAN is consistently working. This is a new keypad bought before last season. It worked fine all last season but after de-winterizing it for this season, I found this problem. I am going to check the connection later today hoping it is something that simple. The keypad lights up and the heater fan will turn on and the interior lights turned on once last night but no longer. Other than checking the connection, any other ideas as to what the problem could be? Is it likely that the keypad is bad(again) and if so what could be causing that?