Replacing A Blower Motor In An Old Gas Furnace

[@DIYApprentice]

This 45-year-old gas furnace is still running great, but the blower motor finally died. Hope this furnace can hold up for at least a couple more years. *Please leave a 👍 and share the video!* 👉 Visit our website ► DIYApprentice.com 👉 Click to Subscribe! ► bit.ly/2pEBg3m 👍▬▬Follow Us on Social Media▬▬👍 ✔ Facebook ► bit.ly/2pAY8S3 ✔ Twitter ► bit.ly/2G7mRDz ✔ Instagram ► bit.ly/2ILEKII 🔧▬▬Tools and Materials▬▬🔧 ✔ DIY Apprentice Recommended Tools and Materials ► bit.ly/2T5psFw ✔ Wago Lever Nuts ► amzn.to/3HqBvWt 📷▬▬Video Equipment▬▬📷 ✔ Camera used ► amzn.to/2GcpkOb ✔ Lens used ► amzn.to/2Deu16S ✔ Tripod ► amzn.to/2GbaM1c ✔ RAM Suction Mount ► amzn.to/2Wz9PXh ✔ Cyberlink PowerDirector ► bit.ly/2jTwGxT ✔ Adobe Photoshop ► bit.ly/2V7nyUX ✔ Camera Slider ► amzn.to/2WtD7GW ✔ Deity V-Mic D3 Super-Cardioid Directional Shotgun Microphone ► amzn.to/2LI1lf7 **This video was recorded in 4K resolution, so modify your settings accordingly if desired for better image quality** Disclosure: This video contains affiliate links, meaning, at no additional cost to you, I will receive a commission if you click through and make a purchase.

[@timpayne8004]

The soldering is super well done. I'd wire nut and run!

[@DIYApprentice]

Lol. Thanks.

[@jeremiahrex]

Nice fix. Easier than I thought it would be. Hope you feel better every day.

[@DIYApprentice]

Yes, it wasn't too difficult. I'm surprised the furnace is still running so well, but we'll probably try to get only one more winter out of it. Thanks for the kind words.👍

[@frankblack1481]

Terrific little job you did there. Very neat.

[@frankblack1481]

You look like you’ve been through the wars! Hope you feel better each day and are back to normal soon

[@DIYApprentice]

Lol. Thanks.

[@joeinreallifeful]

Thank you!

[@DIYApprentice]

Thanks for watching!

[@frankblack1481]

We live in Seattle too and changed a similar-vintage furnace for a heat pump. Don’t regret it at all but wish I’d known before that (a) old craftsman houses don’t have much insulation and (b) Knob-and-Tube electric won’t suffice. The heat pump struggles a bit on super-cold days because you cannot simply throw more hydrocarbons at it. The AC during summer is a total boon tho….last summer our house was ~15 deg cooler than next door. Long story short, if you are replacing your furnace… consider heat pump but do plenty homework first.

[@DIYApprentice]

Interesting. I'll have to check that out. Thanks

[@ThePlockets]

True confidence: he completely reinstalls the blower and closes up the furnace before testing whether it will run when he turns it on.

[@DIYApprentice]

😀 I was certain of the issue, since I'd been messing with the furnace for a couple weeks. It would have been best to show a test, though.

[@verytrue4116]

Is this safe to connect the ground to an impromptu hole drilled in the motor housing? Do we know for sure it's grounded well externally? I wouldn't want to get electrocuted later on when touching parts of the furnace.

[@DIYApprentice]

Fair question. Furnace blower motors of this type that I've seen are typically grounded to the housing. Testing with a multimeter to confirm is probably not a bad idea. I've seen 5 ohms or less as ideal resistance. I'm at 4.0 ohms: bates-electric.com/how-to-test-for-ground-with-multimeter/

[@dominictest]

You can try oiling the motor to stop the squeaking

[@DIYApprentice]

Yeah, the motor was done and barely moved.

[@xooq_]

how do you find the part replacement

[@DIYApprentice]

I briefly discussed finding the part at the 6:36 mark. Google searches help with cross-referencing for alternatives.

[@clerrencegardner2785]

he didn't show what wire go where,,,is there a pacific color? how do you know what speed go where?

[@DIYApprentice]

The wiring will depend on your furnace motor. I just matched the replacement motor's wiring to the original based on what was specified @ 7:07.