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

Installed ecobee3 thermostats. I have a single stage heat

Customer Question

Installed ecobee3 thermostats. I have a single stage heat pump (trane). Appears that the heat runs for about 20/30 min, then stops. The aux heat kicks in but the fan doesn't run.. Net effect - cold house and a message telling me my aux heat has been running for a long time. Thoughts?
Submitted: 10 months ago.
Category: HVAC
Expert:  gotoman for ac replied 10 months ago.

Will need model number on Trane furnace. Problems that may cause this is if your thermostat is connected to outdoor sensor with heat pump lockout at a certain outside temp. Since it runs for thirty minutes it may not be a problem. Check the indoor coil to see if it is dirty,check filters to see if dirty. Feel large line outside to see if the line is hot when unit is running. Check these and get back to me. Russ