[Spridgets] Not LBC Furnace Thermostat NO DISPLAY

[Linda Grunthaner]

List,
You guys have always answered my "home/shop" questions best so he I go.
This morning the house was @63 degrees. I looked at my Honeywell
Programmable Thermostat (15 yr old) and the LCD display is powerless. Yes I
changed the batteries & tested them and still nothing. I want to test it to
determine if power is getting to the thermostat (yes I checked the
breaker). I have 4 wires white, yellow, green and red, I see on the site
below and the quote taken @ half way through the link to jump R & G to test
the fan. I didn't try it yet because I'm thinking I can do a continuity
test with my digital multi-meter. How do I test the thermostat with my
meeter or should I just jump G & R?

Thanks in advance,
Lin
62 California Sprite "Pinky"

Link:

http://www.justanswer.com/hvac/1yvbd-lcd-display-honeywell-electronic-thermostat-gone.html

Quote:

"take a small wire or paper clip and jump R to G, this should turn on the
fan only. What the choices will be after this test is

 fan comes on = bad thermostat

fan does not come on = furnace
<http://www.justanswer.com/topics-furnace/>ran on limit and limit did
not reset."


Honeywell manual (trouble-shooting section sucks):

https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-0862.pdf