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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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We are having problems with getting the emergency heating to

Customer Question

We are having problems with getting the emergency heating to come on. We are using a venstar thermostat. Also the fan runs all of the time when the unit is on. I have an electrician here now if you would call ************ I would be greatful for your help.
JA: Did you double-check the thermostat's settings? And what about the filters?
Customer: the filter is fine. the unit has never been used for emergency heat. The unit is a Nordyne 421169 B6vmax42k-B. We have been checking all settings. please call(###) ###-####so we can discuss the settings.
JA: Do you plan on doing the work yourself?
Customer: I have an electrician here and the service tech that I purchased the unit from was here yesterday.
JA: Anything else we should know to help you best?
Customer: The thermostat we are using is a Venstar residential model T7850. It is a color touch.
Submitted: 8 months ago.
Category: HVAC
Expert:  airheatman replied 8 months ago.

Tell me color wires are connected to what terminals at the thermostat.

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