O'Shell

I think the transformer is right in the middle of the board. It has a coil of wire wrapped in plastic. In a square metal housing. And I do think it was the rats the first time as the wires were touching where the little ****** chewed through.

The GFI trips right as you flip it, the spa pack makes a click within that micro second. With the .3 amp fuse removed the GFI stays on but the spa pack does nothing. No readout from the top panel and after the normal prime time it does not kick on. So this fuse is needed for the M7 computer I would guess. It has no flow switch just two heat sensors on top of the heater, blocked in by the spa pack case. Just one led light and that is a foot above the pack. But that light was disconnected and the GFI still trips. I also am thinking it is this transformer the trouble shooting talks about, but do not know how to tell.

Spa is 3 years old. Yes I pulled the wires from the clips on the board. The pack trips the GFI without any external wires attached. The Pack does not trip the GFI when the .3 amp fuse is removed.

The rats only chewed through one cord. That was the ozone. They made a nest out of sticks under the tub. Their is no other wires that run anywhere else. The second pump still worked fine just made a high pitched noise. I have not the money to throw a new pump at it. Everything is in the spa pack short of the two pumps, the top side panel and the light. I have left the ozone out. It trips when none of these are hooked up. Leading me to think the rats did not chew anything else. As they can not get in to the spa pack without a screwdriver and thumbs. This is the only schematic I could find and it does not show what the fuse does. Balboa Application Notes

Greetings. I am one of the not so smart and unfortunate ones who purchased an infinity spa. It has a Balboa VS501z (I think).. I did NOT buy it at Costco so my warranty is null. About a month ago the GFI tripped and I pulled the side panel to see what was going on. Well pack rats had moved in and chewed through the ozone cord. I spent 2 days pulling all the side panels, cleaning out all the mess they had made and then cutting some wood to block the corners off from them getting in. I pulled the ozone and started it up the second pump was making a high pitched squeal to it, but I tend not to use those jets anyway so I disregarded that. It ran fine for a few more weeks and then tripped again. I looked in and no new rat damage so I looked at the trouble shooting guide. It says to disconnect everything one by one and see if the GFI still trips. With both pumps the light and the top panel disconnected (the ozone was still detached) it still trips. I looked at the fuses and they looked ok tested them with a multi tester and they read .1 - .2 ohms. I did however try the GFI without the .3 amp fuse and it stayed on. So if that fuse is where the short is then what does that fuse cover? I was reading up at Balboas web site and it mentioned a transformer? If that is the problem does anyone know the right transformer I need? I am not new to forums just this one.. Yes I searched... Thank you for your help!