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10 KW Powertech generator

January 29, 2017, 12:08:34 am

My generator  starts easily and runs great for about 20-25 minutes then shuts down .
I have replaced the radiator cap and new oil , filters it only has 267 hrs .
I think the Dayton blower fan  in front of the remote radiator has a fuse or relay problem ?  It will not activate,  Anyone had this problem ?  I am thinking about getting a hvac tech to ohm out the capacitor and relay on the fan.
It looks like there are two radiators ? one by the gen and another with the blower fan in front.
 
. Ps .Its a 4 cyl Kubota PTSMH-10 it does not have code readouts. and it does not have a board
  I cannot slide my gen. out without disconnecting the exhaust pipe.
 So its been a little inconvenient.   
   

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Re: 10 KW Powertech generator

Reply #1 – January 29, 2017, 08:01:42 am

Check switch panel on generator near hour meter and breaker mine got turned off and did the same thing you are discribing

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Re: 10 KW Powertech generator

Reply #2 – January 29, 2017, 08:42:53 am

I had probably the same problem several years ago.  The 110 volt fan on the remote radiator would not run.  It would run until it shut itself down due to over temp. 

There is a circuit breaker/switch for the fan on the control box.  Over time it had become "weak".  I replaced the switch (circuit breaker) and it has worked fine ever since.  Easy and cheap fix once I figured out what the problem was. 

Once you sort out the problem, be sure to check your coolant level.  I lost some coolant each time it overheated.  As you refill coolant, it takes a bit of effort to purge all the air out of the system. 

Good luck,

Richard

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Re: 10 KW Powertech generator

Reply #3 – January 29, 2017, 09:00:29 am

I had a similar problem about three weeks ago.  I replaced the capacitor and it has worked fine since.

The capacitor cost less than $10, so cheaper to replace than pay a tech to check, although I did test mine myself.

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Re: 10 KW Powertech generator

Reply #4 – January 29, 2017, 09:25:47 am

Bill for what a tech would charge you, you can buy a nice meter that check volts, ohms and capacitors.  It will be a great tool to carry with you.
John M

https://youtu.be/plWSIrkxZRE

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Re: 10 KW Powertech generator

Reply #5 – January 29, 2017, 10:33:21 am

Mine shook the breaker apart for the remote blower.

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Re: 10 KW Powertech generator

Reply #6 – January 29, 2017, 07:04:39 pm

I had similar problem on my previous 1994 Bluebird coach that had a Kubota/Power Tech 10 KW.  Oil pressure sender/sensor (shut down sender)  was the problem.  If it says low pressure it shuts off fuel pump.  Check first for loose wires on the oil pressure sensor.

Power Technology SE had the switch (sender/sensor) at $34 in early 2016.  oil pressure | Power Technology Southeast 

 I no longer have the records for that coach.  I "think" this is the correct sender: 2 Pole Oil Pressure Shutdown Switch by Nason | Power Technology Southeast 

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Re: 10 KW Powertech generator

Reply #7 – January 29, 2017, 07:25:45 pm

Our PT 10kw Kubota had a loose connection to the breaker for the fan, on the backside, inside the control box. It ran until it reached the overheat shutdown, making power of course until it died each time.

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Re: 10 KW Powertech generator

Reply #8 – January 29, 2017, 10:22:45 pm

 This is what happened to my PowerTech.
Generator not making a/c power

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