How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

I have a 2002(?) H9MPV100J20B1 Furnace that the blower quit

Customer Question

Hi I have a 2002(?) H9MPV100J20B1 Furnace that the blower quit working, Are OEM parts still available? Burner works fine shuts off
on hi limit. It has the vari-speed DC drive.
Existing: Motor #1012479; Speed control #1013412; fan control(###) ###-#### how would you test these?
Is there a drop in 3-4 speed ac motor?
Submitted: 8 months ago.
Category: HVAC
Customer: replied 8 months ago.
I have parts out of furnace to bench test!
Expert:  airheatman replied 8 months ago.

These motors are totally different than a conventional motor being that they are high voltage powere but low or dc voltage controlled.

Below is a link that will guide you I troubleshooting, but often the Tecmate tool is required.