Thor Forums

[winder1]

Originally Posted by Dwain65

Winder..you may be on to something here. What I have observed with mine is the pump will click more noticeably as the unit runs. If it is in fact losing prime the pump is working harder to pump fuel and fails prematurely.

A few questions...

How long did your gen run before shutting down?
Anywhere from 4-6 hours.


Was the outdoor temp over 90 degrees?
Not always, and it was always on a freeway.

Were you able to restart immediately after a stall or did you have to wait for a period of time to restart?
It usually would not start for an hour or more.

Have you had extended run times since the vent install, pump repalcement and T fitting removal replacement? The longest it has been run since I got it back was 3-4 hours, with no issue.

Do you know the location of the plastic "T"? No.


Mine seems to stall when the following conditions are met:

1. I am driving the coach and operating the generator at the same time for more than 45 minute drive
3. the outside temp is 95-100 degrees

I have attempted to restart when it stalls, i must prime the pump has an odd thumping sound followed but quiet thump, press start and it stumbles runs at lower rpms and stalls again. Only letting it cool off for over an hour will let me start it normally.

Any input here is appreciated.

My generator failed the first day I left the dealer with a brand new coach, within 6 hours. I took it to a THOR dealer, and an ONAN dealer that first day. THOR dealer could find nothing. ONAN dealer replaced fuel pump, said it showed signs of strain, and thus the generator must be installed out of spec, check the fuel line! The ONAN dealer nailed it on day 1. Then begins the dance with THOR Warranty, and getting them to fix ANYTHING.

9 generator failures later, in 6 months, all of which the THOR dealer found nothing. Took back to ONAN, they replaced fuel pump that showed signs of strain, said it indicates generator installed out of spec. 40 hours since last pump.
CHECK THE FUEL LINE.

Called THOR Warranty, told them what ONAN said. 10 visits to THOR now, they finally find an unplanned union, installed ineptly. 9 months of not knowing what to expect with your generator, and this is only one of many malfunctions, including other electric problems, 3 sets of house batteries in 9 months, and on and on.

D

If you have a problem with THOR products under warranty, you are in a fight to get things repaired. I am not talking about drawer pulls, and penny ante stuff, that they are good about. But if it's going to cost real money, more than a couple hundred dollars, be ready for the finger pointing at dealers, vendors, YOU, in short, anybody but themselves, and their total lack of QA, seemingly at any level. It will take months of being in the shop, at any rate, while they putter around and finally fix things, if they do.

Good luck, you are going to need it.