My spa flips breaker at the 6 pm circulation. Why?

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

commonly its the heat element that trips the breaker. find the heater connection and remove both sides. make sure to tape ends and then try the breaker...if it holds replace the element

Is the pump running? If so I would say you lost your impeller. If not running I would check for a circuit breaker for the motor.

One of three things here.
1.the circulation pump is clogged or failing. (solution: replace or clean out)

2. the filter is old and not letting the circulation pump flow freely (solution: replace filter. to see if this is the problem. Clear the spa of debris. Turn off power. remove filter element. turn on power. see if problem persists. if this fixes it, replace the filter)

3. the heating element is bad. Typically when this happens it blows the breaker, but not always.
You can test this if you turn off power. disconnect the heater and test the heating element for resistance ratings. if you do not know how, this is something a service tech should do.

You have a gage on your filter? Anywhere on your system? I would suspect yout system should run at about 18 to 28 lbs PSIG when clean and go up about 10 lbs PSIG when it needs to be back washed.

clogged filter

If your filter is plugged causes the heater to work harder(overheat). Rus

You have 1 of 2 problems #1 the breaker overload element is bad=replace breaker, #2 You have a shot somewhere in your line feeding your spa, make sure you have power to the line side of your panel/breaker. hope this helps you...

check that the breaker did not trip and reset by flipping the breaker all the way off, then flip on