I finally got Girard to tell me the reset procedure. 4wire connector at front bottom left on circuit board..... turn off unit, unplug connector, wait 60 seconds, then replug and turn on heater.
Good to know but it still cuts off with the E5 blower assy code. They are shipping me a replacement heater, which I will put in myself. Do not buy an RV from Mike Thompson RV in Santa Fe Springs, Ca. They have ZERO customer service, and do not care to help customers. If my tires are supposed to have 80lbs of pressure in each what kind of dealership lets you drive off the lot with 30-35 lbs in each?