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.
I suspect it's just a "burned out bulb". The thermostat is old enough so
I'd doubt that the indicators use LEDs.
Before I approach it, can someone tell me if replacement lamps are
available and easily screwed or snapped in place or will I have to
figure out what tiny bulb to buy and use my past years of electronic
repair experience to solder it in.
It would be annoying to toss out an otherwise working thermostat just
for the want of a bulb.
(W1BSV + Brass Rat \'57 EE)
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