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 installed a rheem rhll air handler condenser shuts off

Customer Question

I installed a rheem rhll air handler condenser shuts off when tstat is satisfied in heat but fan continues to run. I have replaced board I pulled off the electric heat so it is not a sequencer. I have from tstat to air handler r to r, w/ob to white with black stripe,g to g, c to c, to y, I disconnected secondary heat. From air handler to condenser I have common to common, red to red yellow to y, and b to white with black stripe in air handler
Submitted: 11 months ago.
Category: HVAC
Customer: replied 11 months ago.
The rheem condenser is an rp14 and the air handler is an rhll
Expert:  airheatman replied 11 months ago.

Lets disconnect wires fron thermostat to air handler to pinpoint issue to the air handler first

Customer: replied 10 months ago.
all new tstat wire there is no short
Expert:  airheatman replied 10 months ago.

What I am trying to do is determine if issue lies inside the air handler or has any outside issue. If we take thermostat wires loose at air handler and blower still runs we will concentrate completely on the air handler.If disconnecting thermostat wires at air handler causes blower to stop we will concentrate on thermostat.