Furnace BLOWER FAN Motor WON'T SHUT OFF! 6 Reasons Why the FAN KEEPS RUNNING!

In this HVAC Training Video, I Show 6 Reasons Why the Furnace Blower Fan Keeps Running and Blowing Cold Air! Troubleshooting is Performed to Show How to Figure Out The Problem! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.

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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #furnace #reason #notworking #gasfurnace #fan #fanmotor #blowermotor #coldair
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[edlauren]

I am a licensed contractor with some experience.. But, I still watch your videos because I am not a native English speaker and I am learning professional/communication language while driving from one site to another. And yes, pretty much every video I learn something new from you in sense of the trade skills.
Thank you for doing this videos for us!

[shawnlatif]

You are a great teacher with an excellent personality. Thank you so much.

[markspott]

The information you share and your illustrations are done so well! Thanks so much!

[GLG_Corp]

Here is a 7th one but probably not that common - but it happened to me. When they constructed my home they ran three sets of wires to the control board. One multi wire from the thermostat location, and two other separate two wire cables to ??? (they just go into the wall. Possibly one was to go to a fan switch (a switch that would turn the fan on bypassing thermostat) and possibly the other was for condenser control for future air conditioning. Our home does have a fan control switch, but it is wired directly to the fan not the control board. For whatever reason, the installation contractor connected both extra two wire cables to the control board, wiring red to R and the black wire to G. The other ends were not connected to anything, so it didn't matter. Recently we had a really hot spell and turned the fan control on to try to circulate the cool air from the basement - left it on for several weeks. When we turned it off - the fan stayed on. The culprit was one pair of the extra wires. After 20 years of vibration a short was created between red and black. I isolated which pair and spent some time wondering if it was possible it was connected to some other device that would try to turn on the fan. Once I determined it wasn't, I disconnected that pair from the control board. Everything works, thermostat fan on, fan control, heating, and cooling.

[melchezidekmuhammad]

Gratitude .. your shared knowledge is spot on, right & exact. My problem solved!

[BlackjackKX]

I have an ECM/Control board. Fan blower blows non stop, but will cut off if I pull the single wire off the control board from the X13 SPD post. Does that sound like it's a bad board?

[edbouhl]

Excellent! As a homeowner, I wish that I could always count on service specialists like this when I need assistance. Unfortunately I’ve found that often I need to know the specialist’s job as well as he does to make sure the work is done correctly. Usually too, I’ll have the specialist pull a city permit for the job so they know their work is being checked.

[patbrock]

I'm sure 95% know but for the 5% that don't, sometimes you want the blower to run all the time. When you have a multi floor house ( 2 story or more) you get what's called a waterfall effect where in the off cycle the warm air raise to the upper floor and the clod air falls to the lower floor. I had a raised ranch and would get a 8 degree difference between floors by turning the fan to continues run that cut the difference to 4 Degree. So, during the winter and AC season my fan ran 24/7,

[petesingh]

When checking the voltage of any switch you should read 0volts that means the switch is closed and if the switch is open you should get voltage reading . Plz correct me if I am wrong, thanks

[davidlopan]

Do they have a techmate pro for X13 motors?

[acrepairnearme]

Thank you for the video. I have a question.
Will the power cut off when I pop the door switch reset 3 hours lockout on the control board? I have a situation where the flame rollout switch was open and the board was throwing error 13. But even after I reset the flame rollout switch and put the power back to the board nothing was happening when I initiate a call for heat R+W. The board was making some hissing noise and didn't start the sequence for the heat call. I ended up replacing the board because I thought the power interruption must clear the memory on the board. Am I right?

[kabalbasisla]

Sir I have a question how to convert lra 196 in tons 3phase

[elvisalberto]

I see the green wire and the blue wire connected to each other

[coryk.]

My heater will reach temperature, then heat will turn off (can hear little click) but fan keeps blowing slightly cooler air. Sometimes it shuts the fan off and sometimes it doesn’t, or runs for 30 minutes then shuts off. I don’t know what the heck is going on. I have a Heatrix by Dell HXOB, central air, any tips

[mikebaranREBEL]

Bypass All Safteys, All Of Them... Problem Solved

[workphone]

REAL REASON! THEY MAKE THEM THAT WAY ON PURPOSE SO U WILL HAVE TO PAY MORE ELECTRIC BILL!!! SORRY ALL CAPS CAN'T C SMALL LETTERS ON KEYBOARD

[kenthomas]

I cheat! I use an old contactor off an ac unit and attach two leads to it. I put one at "c" and use the other the same way as you would an electrical meter probe. Two reasons 1) I don't need to keep looking at the meter as I can here the loud clicking noise. Works great in dark and difficult to get at furnaces. 2) In rare circumstances you can read 24V but due to a weak spot in wires it does not have enough under load volts to get the job done. The relay will chatter or not pull in. I find it much faster as I just move right through the whole circuit in seconds.

[UltraHydrophobiccoat]

ECM motor saves money? Hmm, they are way more expensive than the PSC motor. Some ECM motors are failed within 3 years

[thesilentonevictor]

Just a question do you teach hvacr as well 🤔 your knowledge and skill set is of high standards 🇱🇨 🇱🇨

[robmilkiewicz]

I just want to say thank you. I frequently watch your videos for training and you really know your stuff. I’m less than a year into the trade and have shifted from a career in the automotive business to HVAC/plumbing working for my family’s business. After a summer of A/C and now I’m in the height of heating season I’ve been exposed to enough to appreciate the wealth of knowledge you have and strive to become a true technician like you. Not just a parts replacer. You’re ability to explain and prove operation and failure is unmatched. Thank you for passing on you’re knowledge and educating us in the trade.