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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #1  
Old 06-16-2015
Matt Morehart Matt Morehart is offline
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Default PowerTech generator fan not working

Having a problem and could use some 'experience', please. My 15k PowerTech gen fan isn't turning when generator motor is on and AC's won't work. AC's work on shore power though. The fan quit before but started to function properly for no apparent reason some months ago. Now its off again. Any idea where to start?

Thanks,

Matt
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Old 06-16-2015
schamp schamp is offline
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I am no expert but I would start with the two breakers behind the generator. At least thats where they are on my 1990. I think if the fan isn't running the generator is producing power but I would think the fan would be after the master breakers. Hope it just needs a reset.
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Old 06-16-2015
Matt Morehart Matt Morehart is offline
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Schamp,

Yes, I reset the breaker and reset button on the back of the generator several times to no avail. I thought that the last time this happened - when I pressed the reset button it fixed it, because the fan ran when restarted, but no this time.

Anyone know the likely causes of the genny fan not working, ie bad connecton point or sensor?

Thanks for your input.

Matt
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Old 06-16-2015
marvjeanm380 marvjeanm380 is offline
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It may be that the generator is not producing AC.
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Old 06-16-2015
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BigR317 BigR317 is offline
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Look at the voltage regulator that's what was wrong with mine. Fan didn't work and no power output.
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Old 06-16-2015
Clembo Clembo is offline
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Matt,
I would replace the voltage regulator. My VR is a Basler 63-4avc. They are about $311 + from Powertech. There are some China knockoffs on Ebay for around $80-$120. I have one for a spare but I have not used it ,so I cannot attest to it. Hope I never have to, but that is exactly what my generator did a few years ago. I was about 80 miles from Powertech and slept at their front gate and they replaced the VR the next morning. I heard they don't do service work anymore but don't know for sure. Sounds kind of strange they wouldn't, the way the economy has been but you won't know until you ask.
Good luck,
Dan

The old one is a little brown box. The new one is a potted circuit board.
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Old 06-17-2015
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iamflagman iamflagman is offline
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I also vote for the voltage regulator as being the problem. It is also correct that Powertech doesn't do service work anymore, but it wouldn't hurt to ask. Powertech told me to get in touch with this outfit and also others here on WOG have used;

Van-Mor, Inc.
1703 SW 42nd Ave
Ocala, FL. 34474
PO Box 244
Ocala, FL. 34478
Phone: (352) 732-8524
E-Mail: mmoore@van-mor.com
http://www.van-mor.com/
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Old 06-17-2015
mynavion mynavion is offline
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Quote:
Originally Posted by iamflagman View Post
I also vote for the voltage regulator as being the problem. It is also correct that Powertech doesn't do service work anymore, but it wouldn't hurt to ask. Powertech told me to get in touch with this outfit and also others here on WOG have used;

Van-Mor, Inc.
1703 SW 42nd Ave
Ocala, FL. 34474
PO Box 244
Ocala, FL. 34478
Phone: (352) 732-8524
E-Mail: mmoore@van-mor.com
http://www.van-mor.com/
Keep in mind also that the Power Tech web site does not list all of their dealers/service centers. A good example I found out was that CoachCraft in Columbus GA is a dealer/service center and isn't listed on their site. You can call PowerTech for the closest one to you.
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Old 06-29-2016
Matt Morehart Matt Morehart is offline
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Red face

1 year later update on no AC generation: With little use, the intermittent problem vanished until now when I need the air conditioner run off the generator. The Kubota runs great, but once again the squirrel cage fan doesn't run and the generator doesn't engage to produce power. Now we're investigating the voltage regulator as recommended. We know the breaker, reset button and on off switch are working fine. Will keep WOG posted on our progress. Thanks for your past advice......now we'll do it.
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  #10  
Old 06-29-2016
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Tim T. Tim T. is offline
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I'm surprised that no one has mentioned the "start" capacitor on the fan motor.

Right after you start the generator "carefully" use a stick or a screwdriver and give the fan a nudge to see if it will start.

Let us know if if starts that way.
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