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PowerTech woes

So my turn in the generator barrel. The generator motor  starts and runs just fine.

The 110v cooling fan comes on and operates for just about a minute and half then shuts off. Shut the generator off restart same deal. The generator does not transfer power to the coach no matter how long it runs.

I originally thought the 5 amp exciter breaker was bad, jumped it with a fused jumper no change. Which is what Jeff at power tech suggested.

Anyone got any ideas before I dump my wallet on it. Or does anyone know a good generator service in western NY.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: PowerTech woes

Reply #1 –
I replaced the seemingly good main beakers and the fan breaker.  Zero issues since then.

Corroded contacts heat over time?  Reattaching them? 
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: PowerTech woes

Reply #2 –
Check for power at the breakers.  Maybe your regulator is bad.  Jeff at Power Tech should be able to walk you through any test procedures.
John M.
John & Carm Morales

"We travel not to go anywhere, but to just go.  We travel for travel's sake.  Our great desire is to move."

Re: PowerTech woes

Reply #3 –
Here are some Marathon Pancake trouble shooting guide. Hope they help.

John M.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.marathongenerators.com/generators/docs/manuals/SP0022.pdf&ved=2ahUKEwjQwti5mNbiAhUBXK0KHTtkCDEQFjACegQICBAB&usg=AOvVaw0ClAlDJ0mZCRnG6JQ1q4zD&cshid=1559870242140

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.marathongenerators.com/generators/docs/manuals/SB504.pdf&ved=2ahUKEwjQwti5mNbiAhUBXK0KHTtkCDEQFjADegQIBhAB&usg=AOvVaw0oOPDbhmpPgXb89yxBWJj2&cshid=1559870242140
John & Carm Morales

"We travel not to go anywhere, but to just go.  We travel for travel's sake.  Our great desire is to move."

Re: PowerTech woes

Reply #4 –
When mine went out I had no fan at all. Only 5 volts at fan and transfer switch. When I  pulled the end off the unit the Exciter Stator and rotor had made contact. After Ohming out the Stator I got nothing. The end bearing was not noticeably bad, but did have a tight spot. Replaced the Stator and bearing and that fixed it. There is a great troubleshooting guide on Beamalarm.
Power_tech_kubota_8k-10k-12k_operators_manual_4 - Generator Section

Good luck!
Dave & Danette
2005 Foretravel U270, 3620 PBLW, Build #6331
2018 Jeep Grand Cherokee
2017 Can-Am Maverick X3 RR
2016 Polaris Turbo RZR
Motorcade #17839

Re: PowerTech woes

Reply #5 –
I'll give Jeff another call in the morning. As I said the cooling fan runs for about 2 minutes the stops. That tells me the generator is capable of making 120 volts. I did check all the connections on the breakers and in the control box this afternoon. As we are fulltime kind of hard to tear anything down for any length of time.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: PowerTech woes

Reply #6 –
After talking with Jeff at Powertech, he's thinking a short somewhere. So got an appointment with Snyder Bros in Emlinton Pa Monday. We'll see.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: PowerTech woes

Reply #7 –
See my post about my 120v cable shorting out exiting the control box.  Remove the bottom splash panel, crawl in behind the generator and look up.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: PowerTech woes

Reply #8 –
Quote from: amos.harrison –
See my post about my 120v cable shorting out exiting the control box.  Remove the bottom splash panel, crawl in behind the generator and look up.
I'll give it a look but it's not tripping the main breaker. I need to pull it out anyway to check the belt.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country
 

Re: PowerTech woes

Reply #9 –
Not a solution to your problem but when I redid my gen.we found some wires ready to become loose,replaced the rubber mounts
and that made a big difference especially when starting up.
96 U270 BUILD 4810
85 380SL
Drummonds TN.