I did that and it still won't turn on. I noticed when I hooked up those wires from before, the one time the fan came on automatically it sounded different than it used to. I don't know I am at a loss.

I did the first thing you told me. I took the black wire from the switch and put it on m1 and the yellow wire on m2 and after turning power back on the blower came on automatically. But when the heat cycled off the next time it did not come back on automatically. I had to flip the switch. What does ...

My switch has three wires. One black, one yellow, and the other is yellow. I also bought a new rocker switch just to be sure. If I check between M1 and Orange wire going to blower I get 0 volts with system in heat mode. I checked them seperately and each have 110 volts seperately. I also made sure t...

Yeah I tested it yesterday and I got 120 volts on every wire no matter if it was in auto or on. And I found out my blower is not multi speed. Its funny I am a auto mechanic and if this was a vehicle I would have already figured it out. When testing this rocker switch the way I understand the wiring ...

I failed to mention the blower also does not automatically work on a/c mode either. I have to flip the switch to on for heat or a/c. any ideas?

what relay? I dont see a relay

I have an intertherm e2eb 015 furnace with outside heat pump. I changed the circuit board last year because it shorted out and i replaced the sequencer before christmas. the heat pump outside works fine and the inside furnace works. Its just the blower inside will not come on in the auto position. I...

looks like this.

No just the one switch on the front panel

Hello my blower motor will not work in auto position regardless of a/c or heat mode. Last year had to replace circuit board because it shorted out. replaced board with new wiring harness and just replaced sequencer based on hvac technician recommendation and still fan will not run on auto position. ...