Question about Heating & Cooling
Elderly man replaced furnace motor but did not mark where the wiring harness wires go. Can you tell me what the orange and black wires go on the board?
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Posted on Jan 02, 2017
the normal wiring for stats is white=w=heat,red=r=24volts,green=g=fan,blue=c=common,yellow=y=cooling.
see what ties into your furnace board and match the terminals.
Posted on Aug 12, 2008
Chances are, you've smoked the motor. You basically put 120 volts across the speed windings of the motor when you did this.
What you need to do is, with the new motor, you will have neutral, and speed 1, speed 2, speed 3, etc. Hook one of the original black wires to neutral (it would be best to trace which of the two black wires is connected to neutral, and connect this one.).
Black on the new motor is probably High speed, red is probably low, orange is medium speed. Hook the remaining black wire to one of these, and no more than one of these, or you will smoke the motor again.
Attach a wire cap and/or electrical tape to the remaining wires to insulate them from contacting anything else.
Posted on Jan 27, 2009
SOURCE: need som help with a
Look at the schematic on the inside panel of the cover you removed. It should have the schematic with the wires and colors labeled as to what goes where. The wires are a common, run and start wire. They schematic should identify the wire by color and motor connection by number. You should be able to see the numbers on the motor by the connection. hope this helps.
Posted on Jan 29, 2011
SOURCE: I have a Nordyne MGHA-056ABFC-05 furnace. It currently uses a 624567 2 wire control board and 2 wire thermostat. Can I use a Nordyne 902987 relay control box (uses Nordyne 624625A control board) to c
you could use a $10 relay
Posted on Sep 01, 2012
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