Question about Heating & Cooling
Motor will not drive. I have 6vdc power, that produces over 8vdc. After the power card I have 3vdc. When power is applied to motor, it drops to 0vdc. There is a capacitor across the terminal too. Have tried two new motors and nothing happens. Reading across the motor terminals I have 0 ohms on all three motors.
Try with capacitor out...it can be short circcuited. This is to little information on this problem!!
on the other hand...how you supply 6 and get 8VDC...or s it 6 VAC?
Posted on Nov 15, 2014
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Posted on Jan 02, 2017
SOURCE: Wiring compressor
The two terminal cap is only for the new fan motor. Connect the compressor wire back where you found it, on the 3 terminal cap. It's the terminal marked, "herm". The "common" terminal on the 3 terminal cap must still be connected to one side of the 220 power at the contactor. One side of the 220 goes to the common on the compressor. The other side of the 220 goes to the run winding on the compressor AND the common terminal on the 3 terminal capacitor.
Posted on Jul 22, 2008
Do not panic. The new motor has several ways to connect common. READ MORE
If this is a fan for inside then you have the speeds to contend with. The info on the READ MORE link is for that of a central unit but it covers your question too. As far as the shaft being too long you have to cut that yourself. I have an electric hacksaw that cost $500 bucks from milwaukee tools that does a fair job of that.
Posted on May 16, 2009
check the white wire aside from the capacitor where it connect? If it is connected to L1 then the 3rd wire should be connect to L2, or else opposite.
Posted on Jun 04, 2009
Before attempting any of these recommendations, First disconnect all the power sources and check your wiring diagrams on the motor and condensing unit.
On the old capacitor if you look on the top near each of the three terminals. Are they marked, fan - C - herm? If they are that is a dual capacitor and that needs to stay because that is also your compressor capacitor.
The Red wire from the conductor is Run and it's connected to C on the old capacitor.
Follow the Yellow wire and see if it goes to the S or start terminal on the compressor, if it does then that is the Start wire for your compressor and it connects to herm on the capacitor.
For the fan motor a lot of times the wiring connections are printed on the motor label.
Check the label, Purple should be run and connect to C on the old capacitor.
Black should be Common and it connects to the opposite side of the contactor as the Red wire. If the Red wire connects to T1 then the Black wire connects to T2.
The Brown wire shoud be the start wire on the fan motor and it connects to the Fan terminal on the old capacitor.
Now if you want to use the new fan capacitor. Take the Purple wire from the motor and look for any marks (red paint or a dash) on or beside the terminals on the new capacitor. If there is an identifying mark then connect the Purple wire to that terminal, if no marks you can connect it to either terminal. Then you need a jumper wire from C on the old capacitor to the purple side of the new capacitor. Then take the brown wire and connect it to opposite terminal of the new capacitor.
Posted on Apr 06, 2010
Yes, that can be confusing...hook the tan wire with the white strip onto the same line wire as the one going to the capacitor...usually the L2 wire....so then in reality you have the two tan wires hooked onto the common and the F terminals of the cap...
Posted on Aug 16, 2010
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