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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Customer Question

I HAVE A HONEYWELL 6450 BUT MY OLD THRMOSTAT had emergncy heating, its 96 degrees in here, what did i hook up wrong?
JA: Thanks. Can you give me any more details about your issue?
Customer: old thermostat gad orange on o,green on g,brown on e,white on w2,yellow on y1 & rred on r
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Customer: honeywell wants red on r,yellow on y, orange on ob,greeg on g anf brown 7 w2 on aux
Submitted: 1 year ago.
Category: HVAC
Expert:  gotoman for ac replied 1 year ago.

Emergency heat you have to have a jumper between AUX and E. Also you have to go into installer setup and set set 1 option 5. Russ

Expert:  gotoman for ac replied 1 year ago.

Push fan and up button at same time for 4 seconds. That will get you into installer setup. set 1 option 5. Push done when finished. You do not have Ruud Rheem or Weathering do you. Russ