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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22517
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Yesterday thermostat would not engage properly, kept saying

Customer Question

Yesterday thermostat would not engage properly, kept saying waiting. it would click on every 5 minutes or so but not engage. Air handler was coming on but unit outside would not engage.. Now unit outside comes on.. Trane twe024c14, I took off panels to inspect and now it wont come on at all. There is no float valve that I can see. I door see a door safety button that's not engaged.
Submitted: 1 year ago.
Category: HVAC
Customer: replied 1 year ago.
that was I don't see a door safety switch..
Expert:  BillyHvac replied 1 year ago.
If the thermostat was stuck in "waiting" for more than 5 minutes then you have a bad thermostat.
Have you reassembled and tried again?
Use reply
Customer: replied 1 year ago.
I don't think so, I replaced with new and had same result. now air handler isn't coming on at all.
Customer: replied 1 year ago.
strangely enough, not that air handler isn't making any noise Thermostat now says its in cooling mode.
Customer: replied 1 year ago.
now that air handler