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New Member


Monday, June 8th 2015, 2:57pm

Hunter Pro-C transformer

There are three wires coming into the Pro-C controller from the transformer: two yellow and one green.

Should the voltage at BOTH yellow wires be around 24 volts (relative to ground/green)? My transformer connections show 26.5 volts at one yellow wire and zero volts at the other. Voltage between the yellow wires is 26.5 volts. Do I have a transformer problem? I do have other issues; but is this the initial place to be looking?

With all of the recent lightning, power outages and surges in the Houston area, I wouldn't be surprised to have some issues.



Supreme Member

Posts: 5,305

Location: Metro NYC


Monday, June 8th 2015, 5:03pm

Is there a reason you are looking at the controller? Since controllers don't have an absolute need for a ground in the circuitry, your measurements relative to it are probably irrelevant.


New Member


Wednesday, June 10th 2015, 3:26pm

I found the answer to my question on another site. Thanks for the assistance.

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