quick fact check on fan - furance/thermostat

[trader_4]

That's a quick, easy test that would produce some useful info. If it responds then it rules out the wiring to the thermostat and the thermostat fan switch.

I've also see older furnaces where once the blower turned off, a minute later it would come back on again, because the low temp turn off was set low and so was the fan turn on point. So, the residual heat would make it start up a second time.

My old furnace here, if I had the temp set way back to like 45 while away on a trip, when I came back and started it up, the reverse would happen. Upon startup, after a couple mins the blower would come on, but after about 30 secs, it would shut off, because the temp had dropped enough to cycle it off. A minute later it would be back on. It would do that a few times until it staid on permanently.

[micky]

For sure, but like I say, he doesn't have much money. He told me a while back that he was going to get a heat pump, as if it were arranged, but later he said he was told it wouldn't work. Some people around here have heat pumps, but it takes quite a while to heat their houses.

I think it's less.

[micky]

When I was trying other fan speeds, I could tell that the one I started with was the slowest. (which is what I wanted)

You mean during the cool-down time. I can't check now. But I'm pretty sure I only had two wires from the motor connected to anything. It's hard to recheck because my workbench and other stuff is in the way now.

Anyhow, now it's 25 hours since he was supposed to call. What a jerk.

This time I'm not going to just ignore his jerkiness but when I talk to him again, even if he doesn't ask for help, I'm going to tell him how annoying he is. (His back yard is very charming and even the front is nice, but maybe a previous owner fixed it up. I can't imagine him doing it.)

[trader_4]

I presume he mako means when it's running abnormally, which you said was 24/7 no?

I can't check now. But I'm pretty