Progressive Dynamics PD712 problem - Luxury Coach Lifestyles
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Old 12-22-2009, 01:02 AM   #1
slateblue911
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Default Progressive Dynamics PD712 problem

I have a Progressive Dynamics PD712 on my Newell. I am having a problem that hopefully someone can help me with. My converter has an off/on switch in the closet. When I am on AC power and I switch the converter on I hear an initial click. After about 10-15 seconds I hear another click. Both are coming from the converter. It seems to be switching inside. This continues until I turn off the converter. My biggest problem isn't the switching noise it is that once the convertoer is powered on my DC voltage goes up to 24 volts. Once the converter makes the switching noise it goes back down to 12 volts. Obviously the converter is putting too much voltage on the DC side and it has now blown out four of my 12 volt flourescent fixtures. Is this normal. The PD712 manual states that the converter takes the 120V and converts it to 12v. I have had other electrical problems with the AC side but those have been fixed and I do not see where any of the wiring in the coach has been changed. Any help is greatly appreciated.
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Old 12-22-2009, 02:25 AM   #2
slateblue911
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I found my own problem. After reviewing the wiring diagram and opening up the connection box on the PD712. I found that one of the leads coming out is miscolored. This lead is RED and it leads to the generator compartment. This lead was connected to the battery. Well, that RED wire doesn't go to the battery. That RED wire is a ground wire. This will get changed to a black wire as it is very misleading. Now that the wire is grounded all works as it should.

One other question if anyone can answer.
Can I leave this converter in the ON position while the RV is on AC power or do I need to shut it off?

YES this RED wire has upset me since I so not have a wiring diagram for this old Newell.
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Old 12-22-2009, 03:06 AM   #3
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You should be able to leave the converter on while the RV is on AC power.

Newell did not generate real wiring diagrams for our coaches.
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Old 12-22-2009, 03:52 AM   #4
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Thanks for the response. It's amazing how well things work when they are wired correctly.
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