One of the GE Weathertron Model 3AAT80B1A1 thermostats in our home is doing its thing and when the temperature setting is increased a few degrees above ambient the auxillary heaters come on OK to supplement the heat pump's output.
The blue "Aux Heat" indicator recently stopped lighting in that mode. I could live with it that way, but being an engineer I'm sort of anal about having everything working the way it was designed to.
Does anyone happen to know the type number or the voltage/current ratings of the "grain of wheat" incandescent indicator bulbs used in those thermostats. (It's soldered in.)
It would be annoying to spend good money to replace an otherwise working thermostat just for the want of a bulb.
I suppose I could measure the voltage and current draw of the working bulb in our other identical thermostat, but I thought I'd ask here first.
Thanks guys,