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

Janitrol gpd075-3 handler fan run on heat not on cool does

Customer Question

janitrol gpd075-3 handler fan run on heat not on cool does this have sequencer if so wheres is it at
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
Hello,

dont you have a circuit board in the blower section?

Billy
Customer: replied 1 year ago.

replaced circuit board same problem!!

Expert:  BillyHvac replied 1 year ago.
Thank you...

have you switched the blower leads?...obviously the "heat" terminal is live and that speed on the motor works....have you moved the black wire to the heat terminal and tried?
Customer: replied 1 year ago.

switched lead on motor still same problem

Expert:  BillyHvac replied 1 year ago.
so when you swapped leads...it ran on heat...but not cool?

and what terminals are you on?
Customer: replied 1 year ago.

is it possible that the handling fan is bad

Expert:  BillyHvac replied 1 year ago.
yes...that is why I asked to switch leads....you could have one speed ok and another bad. is there a capacitor?