At 06:50 AM 11/7/2015, Jim Felder wrote:
>level in the onboard tank. The bottom light (it is an incandescent light
>and not an LED because they didn't have blue lights back then, if your is
>original) tells you whether the burner light is lit on the fridge.

You're thinking of the high-beam indicator.  Flame indicator (stock)
is a green LED.  Early panels had a fourth water level LED there, and
when it lit the water pump was disabled.  The early fridge had a
panel meter for flame detector.  Later ones have a jumper in the
connector that provides power to the sink pump.

Yrs,
d