Gfci breaker keeps tripping

if your hot tub is tripping the breaker, it could be due to a worn out ground fault circuit interrupter (GFCI) breaker, which is responsible for preventing electrical surges. You can try flipping the breaker to see if it trips again. If it does, then you may need to replace the breaker.

Another possible cause of the problem could be loose electrical connections in your hot tub . This can lead to power fluctuations that cause your hot tub circuit breaker to trip. Professional electricians can inspect your hot tub and tighten any connections that are loose, which should fix the circuit breaker problem.

If your spa is not receiving power, you should check your home's circuit breaker to ensure that it's not tripped . Reset the circuit breaker if it's tripped to restore power to the spa. If the circuit breaker keeps tripping, it may be an indication of an electrical problem, and you should call a professional electrician to diagnose and fix the issue

Melisa, Breaker/GFI may be going bad. You may have to get an electrician to check for short or faulty motor/heater, etc. Check the attached links,instruction and guides, Good luck
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Troubleshooting tripping hot tub GFCI breaker
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Sounds like wet or bad wiring somewhere but u should do a visual inspection of all the wires & connections first then through process of elimination. Turn off breaker disconnect all wires and connect one wire then turn breaker on & if it dosent pop the. Turn it off and connect one more wire and turn the breaker on & continue until you get the breaker to pop and the last wire or board u just connected is your problem & go from there.

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.

If it trips the circuit breaker as soon as you turn the FAN on, suspect either a bad fan motor or a failed fan motor start capacitor. If you are able to turn the fan on but the circuit breaker trips as soon as the COMPRESSOR starts, it is possible that the compressor is seized.
If, on the other hand, the unit is tripping a GFCI (Ground Fault Circuit Interrupter) breaker or GFCI utility outlet, it is possible that neutral and hot are reversed at the outlet into which the trailer is plugged (happened to me this year at an RV park).

Because it is a GFCI. Try making sure that the grounds are all good. Maybe go the extra step of putting in grounding rods into the ground and grounding to the unit. These are just guesses.

#1. DO NOT GET INTO TUB FULL OF WATER WITH A GROUND FAULT.
2. There is a short. You need to get multimeter and start checking each part for current running to ground wire.
3) Power is ON. Connect power without GFCI.
4) Tape tester leads to wood sticks to keep hands away from power.
5) Do not touch anything directly or you will become the ground rod.
6) Ground wire must be present, and bonded back to main panel box.
7) Do not sit or touch directly on cement or bare ground. Do not touch or lean into anything made of metal.
8) Body and parts must be on sheet of plywood, or similar non-conductive dry surface.
9) Test each part with spa, but also test electric line coming from main box.
10) GFCI will also trip with any fault detected on line. So the wire coming to spa may have the fault.
11) Add a new dedicated line from main box to spa.

http://waterheatertimer.org/How-to-wire-GFCI.html
http://waterheatertimer.org/See-inside-main-breaker-box.html

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

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.

If your hot tub is pulling more amps than amps sent your breaker box, you'll keep tripping the breaker. Check the rating on the hot tub and compare that to the breaker rating. You may need to uograde the wireing. Make sure the wire gauge is up to code.

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.