merlemac

Main Breaker was failing intermittently. No electrician would've caught it unless it failed when they were testing.

It tested fine. As I teach my students, don't ever assume anything in life. Very few, if any, assumptions are ever 100% correct and you become the small person.

Our main 50A breaker has been tripping randomly. I isolated the problem to the heater and main pump circuit (they operate together) Heater tested fine. I believe it's the main pump. Heres a pic of the pump. See the beautiful rusted shaft. From observation, we definitely have had a leaking shaft seal. OK, Spa Experts, do you think it's the main pump causing the 50A breaker to trip? We bought the house a year ago and have no idea on any preventative maintenance on the hot tub. Hot tubs were not made to be user friendly for maintenance. They should have specific access panels. I guess that's why they are made so cheap and sold so expensive.

I need help! My main breaker (50A) is tripping, not the GFI breaker (50A). Yes, it has a dedicated circuit off the main panel. First, I thought it was the GFI breaker and put in a new GFI breaker. That wasn’t it. Main breaker still tripped when I turned on the spa. Next I thought it was my heater and replaced it with a new heater assembly. Nope, still tripping the main breaker I tried to narrow the search by unplugging each component one at a time, including the heater, to see what component is tripping the main breaker. No luck. Nothing tripped the main breaker by itself. If I run the main pump and heater at the same time, this is the only way to cause the main breaker to trip. Again, the GFI breaker (50A) does not trip. I have no error messages on the panel. It’s a Gecko In.Ex-5 Is this the rare situation where I could have a bad main breaker? Is there anything else to try or it could be?