[cantstandit]

After turning up heat, blower will not come on, or the heat. What do I look for or trouble shoot?. thanks

[wmproop]

1st,check breakers, 2nd,if its gas make sure the doors is on tight, 3rd is thermostat telling it to come on?jumper or tir the red and white stat wires together,this bupasses the stat see if it now works,if so consider a bad thermostat,may need replaced

[cantstandit]

Got power on both legs, this is a split unit, already jump and nothing happen. Just bypass the thermostat and jump at termial strip. :mad:

[letmetellu]

Does anything happen when you turn the thermostat up to 80 degrees or so? Does a motor start running anywhere in the furnace? Give a little more info and we might can help.

[cantstandit]

Nothing happens, I turn up the thermostat to 80 on heat, then auto, Motor does not come on, nor does the strips come on, it's like no power, but I check with meter and getting 120 to both legs. Try jumping at the terimal strip, on the white and red lugs. "Nothing" After turning up the Tstat, I get no idiot light on green or red is not on.

Thanks Cantstandit

[wmproop]

At some point,there must be a relay,sequencer or something that power is going to but not coming out the other side,, did you check for power going into and coming out of the step-down transformer,, should have 220 going in and 24 volts coming out,,

[labman]

No light likely means a blown fuse. For a picture of what to look for see https://www.askmehelpdesk.com/heatin...ons-58313.html
If the fuse is OK, if it is a gas furnace, follow the sequence of operations. Post back either telling us you found and fixed the problem, or give more details.

[cantstandit]

This not a gas unit, a split unit with a coils,plus ele strips, I check all power coming in on both leggs at 120, inside the unit there is a small contol board, all the leads coming from it goes to a termail strips, and all the T-stat leads hook up there, Where do I check for the 24v power on the strip? What colors? Thanks

[wmproop]

I do this so I can see the result

[labman]

Red is always one side of the transformer. Often the other is blue or brown. It may be marked common. If you have an indicator light on or flashing, you have 24 volts.

[housemutt]

I have a goodman split gas unit that blows no heat. Turn to auto it blows no air, turn to on, it blows only cool air. Thermostat is on but nothing is happening. What do you think is the problem!! It is getting cold here!! :eek: