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Thanks, I will try that.

I have a 2000 Acura Integra 4d, with power window problem. Most of the time the front driver's side window will not work. But sometimes it does. It will go down and will get stuck where ever I...

Good news, furnace is finally working. I had a pro look at it, he figured out what had gone wrong in about 5 minutes. The initial problem was fixed by the transformer that I had replaced. The...

Checked the fuesable link and it is good.

Yes and no. The fan does what it is suppose to. But, now I have no voltage at the spark ignitor. I checked where the owner's manual said to check for voltage on the gas valve, and there was no...

Obviously I had no idea what fuseable link was, I now know. I will check today. Thanks for all your useful answers. And to clarify my previous post the fan is no longer running continuously. The...

If that is the limit switch, yes. I tested it for resistance and it went down to zero. I think that is what should happen when it is cold.

Well, transformer was bad. I replaced it and now I have 24V coming out, but my furnace is still not working. I have 24V at the limit switch, but not at the ignitor. I changed the control board and...

Primary colors on the old were Black - PR1 and White PR2 and Secondary colors were Red for SEC-1 and Blue for SEC-2 My furnace is at least 20 years old, so it should not matter where SEC wires go. ...

The old transformer had 4 wires different colors. New Honeywell AT72D has Primary BLK-COM, WHT-120V 50/60Hz, and two screws on the load side with an R and C. I thought it would be obvious, but it...

Got a multimeter and did some tests, it looks like the transformer is bad. I will be replacing it and I will report the result. Thanks to both of you. I am a new home owner, and I had no idea...

Thank you for your time. The info was very useful, I will post when I figure it out.

Here is a picture above the gas valve. This is what I had bypassed, but the fan kept running. Thanks for you help.

Here is another picture. And thanks for the manual.

You are right no heat. The ignitor is not ticking. Just the fan running continuously. I don't think I have rollout switches. Let me know if the picture helps. Thanks again.

Thanks, I tried bypassing the limit switch but the fan is still blowing continuously. I am trying to figure out where the rollout switches are. Thanks for your help.

The furnace is a Bryant model # 394GAW000125. The fan is blowing cold air continuously. The only way to shut off the fan is by shutting off power at the furnace. Pilot light will not come on. The...