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
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
23932409
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

Why is blower motor running continously

Customer Question

why is blower motor running continously
Submitted: 1 year ago.
Category: HVAC
Expert:  Brian HVAC Guy replied 1 year ago.
Hi I'm Brian and I'm here to help! I'm sorry for the slow response time today. Since you determined it's not the air handler control board there are still a few other possibilities. First try disconnecting the field installed wire connected to the R terminal or the Red wire in the low voltage harness on the control board's low voltage terminal strip where your thermostat wires connect. This will rule in/out the whether the problem is in the thermostat or thermostat cable. Also try disconnecting the whole connector that is labeled P1 and/or Heater. This will narrow it down further for us. Power the unit back up after each test and see if the blower quits and if so which test it quits on. Try those two tests and let me know what you find and we'll go from there. Thanks, -Brian