What a Failed ECM Motor Module Sounds Like | Replacing a Variable Speed Blower Motor

Find out why Jobber is the best CRM in the HVAC industry click the link for a free demo today!

https://go.getjobber.com/hvactechknow...

In this video, I diagnosed a bad ECM blower motor on a Lennox furnace.
This variable-speed blower motor changeout was so stubborn, it took me around 45 mins just to remove the blower wheel from the shaft!

One of the ways to know that you have a bad motor module, is you'll sometimes hear a thumping noise at start-up. These motors are very susceptible to high static pressure due to under-sized ductwork or an oversized system - causing the motor to overheat.

Don't forget, whenever performing this ac repair, make sure to tighten that set screw!
Thanks for watching!

Feel free to use the affiliate links below if you’d like to help support the channel. I make a very small commission if you purchase through the links - Thanks!

TOOLS I USE

15% off code: HTK15
Kaiweets KC602 clamp meter: https://kaiweets.com/?sca_ref=5465332...

EDC Tools
SOGCASE Leather EDC Belt Multitool Organizer - https://amzn.to/497c6yT

Milwaukee 550 lumens light - https://amzn.to/3SANl79

Milwaukee Fastback 6In1 Folding Utility Knife - https://amzn.to/49svINu

Milwaukee Compact Tape Measure - https://amzn.to/3HSFwEK

KNIPEX Tools
KNIPEX Electricians' Shears - https://amzn.to/3SUTA5Z

KNIPEX 7-1/4-Inch Cobra Pliers - https://amzn.to/3UH6iYx

KNIPEX Long Nose Pliers With Cutter - https://amzn.to/49af2uw

KNIPEX 8-Inch High Leverage Angled Diagonal Cutters - https://amzn.to/4977HMn

Socket Sets, Bits & Bit Holders
Klein Tools 65200 Ratchet Set, 5-Piece Mini Ratchet Set - https://amzn.to/3SVhDTw

Klein Tools 3-in-1 Impact Flip Socket - https://amzn.to/35xOLdH

Klein Tools 11-in-1 Multi-Bit Screwdriver/Nut Driver - https://amzn.to/3uxoJnJ

1/4 Inch Hex Shank Drill Bits Holder/Organizer Tool - https://amzn.to/4buAcF7

Klein Tools 7-in-1 Impact Flip Socket Set - https://amzn.to/42CtFUR

Klein Tools 14-in-1 Magnetic Multi-Bit Screwdriver Set - https://amzn.to/49wn8x4

Klein Tools 7-in-1 Magnetic Nut Driver (1/4 to 9/16-Inch) - https://amzn.to/3SBNw1L

StealthMounts Milwaukee M12 Magnetic Bit Holder - https://amzn.to/3tdetMH

Milwaukee M18 Combo Kit - https://amzn.to/3SBRbwx

MultiMeters
Testo 770-3 Digital MultiMeter - https://amzn.to/3qxVA6V

Fieldpiece SC680 - Wireless Power Clamp Meter - https://amzn.to/3FsPIjP

Fluke 87V Digital Multimeter - https://amzn.to/3OzG9Xp

Manometer
Fieldpiece JL3KM2 Job Link Dual Manometer Kit - https://amzn.to/3FAmf7A

Wireless HVAC Probes
Fieldpiece JL3KH6 HVACR Charge and Air Kit - https://amzn.to/3ruRVGy

Testo Bluetooth Smart Probe Kit - https://amzn.to/3Kh7cmU

Combustion Analyzers/ Flue Gas Detectors
Testo Residential Combustion Analyzer Kit - https://amzn.to/3usPDgw

Propane & Gas Leak Detector/Sniffer - https://amzn.to/3nn3HRY

HVAC Tool Bags & Backpacks
Klein Tools Tool Bag Backpack - https://amzn.to/3SUnjNm

Milwaukee Packout Compact Tool Bag - https://amzn.to/3ODrMBw

Milwaukee Packout Heavy Duty Tool Bag - https://amzn.to/3OH3Tcu

AWP Extreme Heavy-Duty Tool Bag Backpack - https://amzn.to/3SDuOqC

VETO Tool Bags
Veto Pro Pac TECH-MC - https://amzn.to/3UwIeaD

Veto Pro Pac MB2 Tool Pouch - https://amzn.to/3SDTEH1

Veto Pro Pac TP3 Tool Pouch - https://amzn.to/49cEDD2

Veto TP4-B Hard Plastic Base Tool Pouch - https://amzn.to/3OFPddp

Veto Pro Pac MB3B Meter Bag - https://amzn.to/3SRKCYg

Milwaukee Packout
Milwaukee Packout 3-Drawer Tool Box - https://amzn.to/3UydiXl

Milwaukee Packout 10 in. Compact Tool Box - https://amzn.to/3wgKCIA

Milwaukee Packout Compact Organizer - https://amzn.to/3SQVyoS

Milwaukee Packout Deep Organizer - https://amzn.to/4bzegJ1

Milwaukee Packout Compact Low Profile Parts Organizer - https://amzn.to/49vMStD

Milwaukee Packout Crate - https://amzn.to/3UuN0FA

Milwaukee M18 Fuel Packout Wet/Dry Vacuum - https://amzn.to/3wcZUOi

Milwaukee Packout 3-Drawer Tool Box - https://amzn.to/3wd02xg

Digital Thermometers
Klein Tools Pocket Size Digital Thermometer - https://amzn.to/48fxH6G

Fieldpiece Pocket Size Digital Thermometer - https://amzn.to/3STNSlS

UEi Pocket Size Digital Thermometer - https://amzn.to/3ulMNKj

Testo 835-T2 Infrared Thermometer - https://amzn.to/3SRfVlY

Thermal Cameras
TOPDON TC003 Touch Screen Thermal Imaging Camera - https://amzn.to/49sSXaj

FLIR ONE Pro - iOS - Thermal Camera - https://amzn.to/3A4YPWz

Seek Thermal CompactPRO Thermal Imaging Camera - https://amzn.to/3nvsMu4

Coil Cleaning
Port A Blaster HVAC Coil Cleaning Washer - https://amzn.to/49zvog9

Nu-Calgon Evaporator Coil Cleaner - https://amzn.to/3OH5YVQ

CoilShot Condenser Cleaner Tool - https://amzn.to/49uGym7