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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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We have a nordyne model 903211 also listed is: Migh 090A

Customer Question

We have a nordyne model 903211 also listed is: Migh 090A BW
We have a wiring problem. The compressor stays on all of the time.
To get air, we have to turn the furnace fan on manually, it stays on until we turn it off.
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
Hello,
can you tell me what color wire you have attached to what terminal in thermostat and at furnace..also the 2 wires from outdoor unit
Customer: replied 1 year ago.
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Expert:  BillyHvac replied 1 year ago.
You should In thermostat
red to r
white to w
yellow to y
green to g
in furnace
red to r white to w
yellow to y
green to g
2 wires from ac unit
one wire to Y with the wire from thermostat y
one wire to C
Customer: replied 1 year ago.
We have 16vac red connected to rh and rc. Yellow from thermostat is onnected to to red from a separate bundle (no voltage on this red).White is connected to white on therm.
Expert:  BillyHvac replied 1 year ago.
does the unit continue to run when thermostat is off the wall?