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Onan 10HDCAA spec C start switch and hour meter always running


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Old 06-21-2013, 06:42:51 PM
lfree6 lfree6 is offline
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Default Onan 10HDCAA spec C start switch and hour meter always running

Working on a 10HDCAA spec C quiet diesel, When the unit is shut down and the remote plug is disconnected the start/stop switch is lite and the hour meter is running. I pulled the main plug on what appears to be the voltage regulator and it stoped. I'm not sure if this is just the regulator or also the control board. If anyone has any suggestions or knows if theres a service manual on line I would appreciate it.

lfree6
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Old 06-21-2013, 09:09:16 PM
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EricWood EricWood is offline
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Default Re: 10HDCAA spec C start switch and hour meter always running

Those two items get their battery + power from the "Local" output, or the Switched B+ output of the controller.

Not real familiar with that particular controller, but look at the controller, and see if its possible to recognize any small relays. Switched B+ should be a relay function off of the controller, I would think. If you can actually see/get to relays, try tapping them softly with the plastic handle of a screwdriver or something similar and see if the condition goes away.

Unfortunately, many boards are build now-days, with throw away technology, even though the only thing wrong may be that a particular function isn't working, and often times due to only a bad relay on the board.

I am attaching a small photo of the section of controls that are your area of concern. PM me with an email address if you need/like a copy of the manual.

eric
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Old 06-21-2013, 09:14:03 PM
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Default Re: 10HDCAA spec C start switch and hour meter always running

Oops, forgot the attachment.
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Old 06-21-2013, 09:38:56 PM
lfree6 lfree6 is offline
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Default Re: 10HDCAA spec C start switch and hour meter always running

Thanks. Looks like it comes off the control board. The board is a potted board cant really see anything in it. I'm checking on a price on one, I hate to guess but without a manual I have no choice.

lfree6
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Old 06-21-2013, 09:46:37 PM
Ed Sparks Ed Sparks is offline
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Default Re: 10HDCAA spec C start switch and hour meter always running

Before you go to cummins for a new board, check with flight systems to see if they have one for your machine.
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Old 06-21-2013, 11:05:49 PM
Kpack
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Default Re: 10HDCAA spec C start switch and hour meter always running

Post a email and someone will send you the service manual

See of you can open it here
https://www.dropbox.com/s/mshjrpv5hj...-0526Dhdcs.pdf
Hdcaa service manual
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Old 06-21-2013, 11:19:43 PM
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Default Re: 10HDCAA spec C start switch and hour meter always running

Manual sent to OP
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