50 amp GFCI breaker trips after spa runs for 45 mins or trips after 5 mins if jets are turned on.10 year old cal spa. I found leaks and fixed all of them, but breaker still trips after same amount of time.

If you have any clamp on amperage meters, you need to see what the amperage draw on the circuit is when it is running. This will tell you if something is wrong with the pump circuit. It could be anything from a bad capacitor to an impeller obstruction.

Still would go with Miswired.
if this is an auxiliary GFCI Spa Disconnect,
240 VAC, 50 Amp, then...
All of the following needs to be this way:

• 4 wires from MAIN Circuit panel, into GFCI disconnect box, 2 hots, 1 Neutral, 1 ground
  • 2 hots go onto the disconnects Power Bus Bar for breaker
  • 1 white Nuetral goes to Isolated nuetral bus bar
  • 1 green Ground goes to ground lug directly on the box
• 1 GFCI in the auxiliary disconnect box
  • The White Pigtail of the GFCI Breaker goes onto the Isolated Nuetral bus bar. There are now two wires there.
• 4 wires come into box from Spa. (Unless the spa is Specifically a 3 Wire Connection Spa!)
  • 2 Hot/Line wires will go into the L1 & L2 lugs of the breaker respectively.
  • 1 White Nuetral Wire will go into breaker as well at the "Load Nuetral lug, usually marked as 'LN'.
  • It will NOT go on the Isolated Nuetral bus bar.
  • Green Ground wire will be connected to ground lug, 2 wires are now connected there.
• Connections at spa will be respectively connected: the 2 hots on line 1 and line 2. White wire goes to Nuetralnd green ground will go to a Ground Lug, most likely to metal control box.

If it's not wired in this manner, it is wired WRONG.

Hi Leanne...
Sounds like you need to prime your pump...check the instruction manual on how to accomplish this task
Bud

call an electrician to do an insulation check
insulation will eventually break down under ground normally from ants eating it

Question is not fully clear.

2-pole 240Volt gfci circuit breaker requires the white wire be connected to neutral busbar.

Easy solution for 240Volt spa that comes with gfci:
Replace spa gfci with regular non-gfci breaker.
Install 2-pole GFCI breaker in main panel, and connect wire to spa breaker.
http://waterheatertimer.org/How-to-wire-GFCI.html#2-pole-gfci

Having 2 breakers is not a problem.
Having 2 GFCI on same circuit is a problem.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Hi,
You will want to make sure that all of your spa equipment is functioning properly. It is best for a spa technician or electrician to determine this issue.
It is likely that a particular piece of equipment is turning on around the 30 min time frame and causing the breaker to trip. Pump, ozonator or similar. Also check the heater element, a pin sized hole in the element will cause it to fail. Lastly your spas breaker itself could be bad.
Good luck!

I am assuming this is a GFCI circuit breaker? If it is it will have a "test" button on the breaker. When you say "jets" i'm assuming you mean when you turn on the blower to make the air bubbles? It could be you have a problem with the blower motor. When you start the blower, it trips the breaker. Be sure the blower is in off position when you reset the breaker. The most common fault though on a spa/hot tub is with the heater. If the element goes bad, and current flows to ground, it will trip the GFCI breaker. Again try and turn all functions off. Reset breaker, and then turn on one at a time till the breaker trips. First the pump, then the heat, then the blower.

is the spa fitting leak dripping on a motor? If so this will cause your breaker to trip.

sometimes gfi outlets go bad and trip try testing with a heavy draw machine in it or just replace it and see if this fixes the problem

gfci's are designed to trip if they receive voltage on there ground/neutral side, therefore my vote is for Smithbrother I would say there is probably a partial short somewhere in you system.