Indicator Lamp on Weathertron 3AAT80B1A1 Thermostat

Posted by Jeff Wisnia on November 13, 2008, 1:53 pm

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.

Thanks guys,

Jeff
--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.

Posted by kool on November 13, 2008, 7:20 pm

> 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.
> Thanks guys,
> Jeff
> --
> Jeffry Wisnia
> (W1BSV + Brass Rat '57 EE)
> The speed of light is 1.8*10^12 furlongs per fortnight.

It's a tiny incandescent bulb about the size a Motrin gel-cap , with two
little wires protruding from the bottom G.E.# 35E. It just sits in the hole
over a blue plastic lens.(the bulb is clear.) Mounts only by the wires
soldered onto the wires in the stat.

Posted by Jeff Wisnia on November 13, 2008, 8:21 pm

kool wrote:

>>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.
>>Thanks guys,
>>Jeff
>>--
>>Jeffry Wisnia
>>(W1BSV + Brass Rat '57 EE)
>>The speed of light is 1.8*10^12 furlongs per fortnight.

>
>
> It's a tiny incandescent bulb about the size a Motrin gel-cap , with two
> little wires protruding from the bottom G.E.# 35E. It just sits in the hole
> over a blue plastic lens.(the bulb is clear.) Mounts only by the wires
> soldered onto the wires in the stat.
>
>

Many thanks, I'll pick up a couple of those GE bulbs and have at it.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.

Posted by Stormin Mormon on November 13, 2008, 9:01 pm

For want of a bulb, the thermostat was lost.
For want of a thermostat, the heat pump was lost.
For want of a heat pump, the house was lost.
For want of a house....

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.

Many thanks, I'll pick up a couple of those GE bulbs and have at it.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.

Posted by ftwhd@home.com on November 13, 2008, 9:35 pm

On Thu, 13 Nov 2008 21:01:35 -0500, "Stormin Mormon"

>For want of a bulb, the thermostat was lost.
>For want of a thermostat, the heat pump was lost.
>For want of a heat pump, the house was lost.
>For want of a house....
>--

For want of a brain you are lost.

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