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I know you probably already have it...but here is how the 9160 transfers to your 9120b
As far as HUM..that is an accessory for a humidifier.
The neutrals are all the same and do not matter which is used by what as long as they are neutrals.
If you tell me specifically what wires you have a problem with I can help
see page 3 here
Give me a moment and I will do a crossover for you
try this one more time...if it doesnt work I will write it out
the confusing ones are:
and yes on the jumper plug
the transformer has 4 wires..black and white on the 120v side.
black is located next to L1 as that is where it gets 120v to supply transformer. White goes to any neutral
The wires on the 24v side depend on if it is original transformer for color...what are the colors of the 24v wires from trans?
and what is furnace model number so I can check color code
when this all started...was it because the blower did not run?
page 23 here will show your colors
looks like blue is 24vac and yellow is com
is the main blower running ?
I do not see a wire on IND? Should be a black wire from exhaust motor
follow the wires from the exhaust motor.....tell me where they currently are
ok the exhaust fan down by gas valve.....has a black and white wire going into it...I cannot trace it in the pic...where does that black and white go?
Now all wires appear right....also coming from the gas valve will be a couple wires that go to temperature safety switches.
By chance did your tech tell you that on this particular furnace the gas smart valve is most often the issue?
This is known as a honeywell smartvalve that failed in great numbers and was dropped
before we start...try swapping the yellow wires from the transformer...
it is reading a open limit, but if the limit is open a blower should be running.
Try the thermostat for a cycle...
the 2 black wires at L1....which goes to the door switch?
ok last checks...
on new board under the plug..what are those terminals labeled..They have 2 yellow wires right now.
Then above by other plug are 2 wires...blue and yellow...what are they labeled
the blue and yellow unused?
and the 2 yellows C and X?
I am afraid thats all I can do from this venue...everything looks correct at this point.
I am going to open this to the others for a look for more opinions..