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| Burnt Resistor on Onan Board [message #317260] |
Tue, 09 May 2017 13:00  |
Jon payne
Messages: 495
Registered: May 2008
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Guys,
Have a problem with with the Onan. It starts but immediately shuts down. First was thinking it was the LOP circuit but after thoroughly checking that circuit no faults were found. Also, if it was the LOP I would expect it to run 3 to 5 seconds. The scenario I'm facing it runs as long as the start switch is pressed, once released it stops. I inspected the control board and found one of the resistors burnt, pictured below. Trying to figure out which resistor this is I read up on the control board operation by Duane Simmons, and I'm thinking it is resistor R1 (pictured below) which is part of the circuit that controls the K2 relay which controls the K3 relay which keeps the Onan running.
So, I need to obviously replace the resistor but wondering how I determine the correct resistor. This board is not the original board but is the replacement from Dinosaur. On the PC board it appears to be marked "56 ohms" but if that is right I still think I need to know the specs, volts & watts?
I'm sure I can contact Dinosaur but wondering if one of the electronic gurus here could lead me to the right resistor I need.
Thanks,
Jon
http://www.gmcmhphotos.com/photos/data/5607/Onan_Board.jpg
http://www.gmcmhphotos.com/photos/data/5607/Onan_Board_Schem.JPG
Jon Payne
76 Palm Beach
Westfield,IN
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