3000W Chinese Gensets Info.

professor95 wrote:
Bill,

The over voltage protection module takes power from the coil and samples the 120 VAC output. It is designed to ground the low oil line circuit if the voltage exceeds 135 VAC. I have no idea why they do not have a module in stock. Did you talk to Matt Cole in parts as I suggested?

No, I missed that. Will do it in the morning if I can get through before I have to do stuff.......Does Matt have an extension number?

If not, PM me so I can let you know how to call me - I can possibly help you over the "hump"..

Thank you for the kind offer. I should add that you are a really great source of information on this thread.

The biggest risk is the AVR failure, which is why the OV module is there to begin with. If the AVR fails on ANY of these Chinese generators the voltage can soar to as high as 190 VAC and destroy anything plugged in and running. AVR failure is not an everyday worry as it usually results from restricted air flow to the end cap of the generator or extremely high temperatures.

Oh Oh.......is 110 deg extremely high? Is there an upper limit on a Raytek reading on the end cap? Maybe I need to build a sun shelter for it. I'm getting afraid to take my eyes off the voltmeter. :(

Another cause of AVR failure is NOT disconnecting loads before shutting down the generator.

Oh Oh again........ I guess this includes low oil shutdown. Mine is using oil. Sounds like I better top off my oil at every refuel to avoid an AVR failure. What a pain.

Oh Oh yet again. ........I guess this also includes running out of fuel. I had better set an alarm, then, huh? I get about 8 1/2 hours on a tank, running one 13.5K AC.

Lots of traps. What do they charge for a new AVR?

As for warranty just being parts and fix it yourself I know it did not used to be that way. You were given the option of doing that but always had the privilege of taking it to a prearranged service center of choice. Maybe that has changed - don't know????? Anyway, most of the guys prefer to swap out a part themselves if it is easy to get to rather than having the genny sit in a repair shop for weeks.

They never said anything about a service center. But, on the other hand, I didn't ask specifically. I am OK with doing my own work, as long as they send me the part. Driving to a service center would be OK, if they had the part to give me. Perhaps I will inquire in that direction.

Thanks for the good info on preventing AVR failure. What exactly causes the failure on a shutdown with a load connected? Is it low voltage? Do you think a low-voltage dropout relay would help this situation? Guardian makes one that opens at ~103 volts.