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ok, amazing news, fan works, heat's back on! I respliced the two white wires with a wire nut (it was previously coated with a gooey substance), redid the electrical tape and voila it worked. I hope the wiring can keep it together as the weather's gotten cooler here again. Thanks for all your...

well, the good news is the fan works in "on" position with no heat. I tightened the nut on the furnace where blue goes in and it worked. HOWEVER, the heat now doesn't go on!! I've tried waiting a while before switching to heat, tried turning power off to furnace and on again, but no heat...

got it, tks. :)

ok guys, I've found where they spliced the tstat wires and changed the coloring. From Tstat: Yellow = Black at furnace Green = Blue at furnace White = White at furnace Red = Red at furnace I have no idea what your previous postings were about, I really have no experience with this, so...

Good morning. Nothing happened when I touched the blue to the red, no blower, no response from the furnace.

I'll test it in the morning. Is it ok to hook up the green and blue together on one terminal if need be? Thanks.

yeah, the yellow and green are a puzzle aren't they? On the left of the photo you can see the thermostat wires, on the right are the green and yellow coming from somewhere else. The green divides into two, one going into the G terminal with the blue wire and one going into the fan "board" (top...

here are some photo's of the schematic. Hope they're legible.

As you can see from the photo's the schematic would be very complicated, not something I can tackle if I don't know what I'm supposed to label. What is VOM??

here are some photo's. Thanks again.

Yes there is, and the thin black and white wires from these seem to go into this panel too. the humidistat is on the furnace and is separate from the thermostat. By the way, the green wire going to G on the furnace is labelled "rehum".

On the tstat, there's nothing on R2. On the furnace, nothing on W2.

This is not a heat pump system, just forced air gas. I've noticed that the wires hooked up to the thermostat and then reappearing at the furnace don't match. On the thermostat there is an unattached blue wire, and attached white, yellow, green and red all attached to the correct terminals. At...

G terminal

I jumped the R & G terminals on the furnace and the fan did come on. I should mention the G and Blue wires seem to share a terminal, don't know if this means anything.

I tried to jump on the tstat, nothing happened with green and red. I accidentally touched red and yellow, started fan briefly then stopped (a/c mode).

I looked at the furnace,don't know where to start. Jumping the t-stat seems easier. What will this tell me if the fan does go on?

I don't have a voltmeter, but will attempt the test tomorrow. If the fan is energized this way, does it mean the tstat is bad?

What would I be achieving by doing this? I'm reluctant to try anything without knowing why I'm doing it. The blower motor does work if it's in heat mode, just doesn't stay on continously even tho the fan setting on the thermostat is set to "on".

I wouldn't know how to do that - please explain!