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Old 08-14-2013, 07:59 PM   #1
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Alpine Owners Club
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Generator starts up by itself

I came home from today and my MH generator was running. My battery switches were all in the off position. I checked to see if a cat could have gotten into the compartment to trip something and that wasn't possible. Any ideas??? Thanks in advance for the help.

Dean and Susan
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Old 08-14-2013, 09:05 PM   #2
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Is your invertor set to "auto-start"? It causes the genset to start when the batteries discharge to a certain point.

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Old 08-14-2013, 09:16 PM   #3
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Old 08-14-2013, 09:20 PM   #4
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On some gens it's possible for a short to occur and cause the gen to start and run. Think it was PowerTech's though
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Old 08-14-2013, 09:21 PM   #5
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Here is one possibility….

We had a 02 and several times the generator would start up at random. The cause was narrowed down to a flakey start/stop switch mounted on the generator. The front slide would leak water allowing it to drip onto this switch. After spraying lots of contact cleaner into the switch and exercising vigorously the problem stopped. I added more gasket material to the top edge of the front slide and now no more dripping water on top of the generator.
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Old 08-14-2013, 09:31 PM   #6
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Another area to look at is the harness on the generator that is used for the remote start. There should be a weather-proof connector somewhere around the top curb side.

Take apart the connector and spray it really well with WD-40 to clean up the contacts. The use a small amount of Di-electric grease to spread onto the contacts before putting the connector back together.

Moisture will get inside the connector and give you a false signal.

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Old 08-15-2013, 07:13 AM   #7
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My generator starts about once a month in the exercise cycle. I have the gen start set to automatic.
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Old 08-16-2013, 07:56 PM   #8
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Thanks for all the ideas, I am going to look into things this weekend and can hopefully figure this out.
Dean and Susan
2002 Alpine 34 FDDS 350 HP
Towing a Jeep Wrangler
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Old 08-17-2013, 10:54 AM   #9
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Maybe its like a dog that brings you the leash?
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Old 08-22-2013, 06:26 PM   #10
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Hello All,
The dash board a/c, drips water onto the genset switch when in use. The switch for the genset gets wet, over time it could short out. Some kind of a cover needs to be place over the area on the genset to keep the water off. Do a search herein, to see some remedies for that problem.

Or like has been suggested, you have auto gen start, enabled in the inverter/charger unit, and if it's enabled, the master switch have no control over that. So you must disable (turn off) the inverter, and that will stop the problem, or, you have the thermostat armed (that I think would require the coach master switches to be on I believe), and the thermostat is calling for cooling to keep the dog/cat safe, and the genset runs for that reason. My guess is the auto gen start is enabled.

The genset needs to run monthly for 2 hours to keep it exercised at half load. Read the inverter manual and the genset manual and between those two manuals, you will learn lots of cool stuff.

Monty & Janet - 2007 Alpine APEX 40 MDTS
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