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Old 06-10-2018, 05:38 PM   #1
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Default Generator start up delay

How long should it take for the 120 volt system to be stable when you start up a 2.8 Onan in an older Roadtrek. It use to take a couple of seconds for the microwave keyboard to start blinking, now it takes 10 to 15 seconds. Is this an indication of a problem? Thanks for your input
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Old 06-10-2018, 07:15 PM   #2
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How long should it take for the 120 volt system to be stable when you start up a 2.8 Onan in an older Roadtrek. It use to take a couple of seconds for the microwave keyboard to start blinking, now it takes 10 to 15 seconds. Is this an indication of a problem? Thanks for your input
5 minutes . . .
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Old 06-10-2018, 09:45 PM   #3
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How long should it take for the 120 volt system to be stable when you start up a 2.8 Onan in an older Roadtrek. It use to take a couple of seconds for the microwave keyboard to start blinking, now it takes 10 to 15 seconds. Is this an indication of a problem? Thanks for your input

Assuming the Onan is coming up to speed properly, the delay period before the Onan transfers to and feeds the 120VAC breakers is typically controlled by a circuit board in the transfer switch that inhibits transfer long enough to allow the generator to stabilize its output. After the delay period is completed, the circuit board provides rectified 120VDC to the transfer switch relay coil. 2 seconds seems a little short. 10 seconds seems about right but the fact that this delay period has changed significantly could indicate that the transfer switch circuit board is starting to fail. Can you physically access the relay in the transfer switch box?
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Old 06-10-2018, 10:11 PM   #4
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I recently took the Intellitec Battery Disconnect Switch apart to clean the insides because it was sticking. Now it also seems the wall mounted battery switch (in the Roadtrek furnished monitor panel) is slow to operate. I think the Intellitec battery disconnect switch is sticking again. Probably will reorder a replacement from Amazon. Any comments? Thanks for your input
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Old 06-15-2018, 09:13 PM   #5
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My 9 year old Roadtrek RS has this generator and it typically takes about 10 seconds. If it takes minutes I would think the transfer circuit should be checked.
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Old 06-16-2018, 04:16 AM   #6
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My 2013 RS takes about a minute before AC is provided by the generator
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