Troubleshooting a Tripping Spa GFCI Breaker: Step-by-Step Guide
Why Does Your Spa's GFCI Keep Tripping
A spa's GFCI (or Ground-Fault Circuit Interrupter) breaker tripping is a common problem and most of the time an easy fix. Though it can be caused by a host of possible parts, determining the problem part will take some troubleshooting and repairs will require working with electricity. When troubleshooting, always remember to turn off the breaker before you begin and be sure you are not touching anything wet. If you have any reservations or are unsure what you are doing, this is the time to call a professional.
Step-by-Step Troubleshooting Guide
The first troubleshooting step in determining what is causing the GFCI to trip is to make sure the power is turned off and unplug all of the components: the heater, pump(s), and any other accessories like ozonators or blowers. Once that has been completed try turning the breaker back on with nothing plugged in. If the breaker trips, you could have a problem with the breaker itself or the circuit board. If the breaker doesn’t trip, its time to start to plug the components in one by one. Turn off the breaker again, plug one component back in, and turn on the breaker. If the breaker trips, the part you have reconnected last or the wiring to that component is likely the problem. Once you have determined the problem part, it's time to figure out why:
Common Culprits Behind a Tripping GFCI
Moisture – A Hidden Cause of GFCI Tripping
Moisture can cause your GFCI to trip. Always prioritize safety when working with electricity near water and check for moisture around the breaker before unplugging anything. If moisture is present, addressing its source may prevent the tripping. The GFCI is functioning correctly by protecting against electric shock. Consider relocating the breaker box or building a splash barrier to mitigate the issue, but be sure to follow local regulations regarding the minimum distance from the hot tub.
Corrosion and Worn Electrical Connections
Corrosion can also be the culprit to a tripping breaker. All electrical components have wires and connections that can corrode. As you have narrowed down the area where the problem part is located, grab a flashlight and inspect the inside of your spa carefully. If you find corrosion you will need to change them out for new parts, or hire a professional to do it for you.
Checking for Loose or Damaged Wires
When you are investigating the inside of the breaker you may also want to check electrical connections. With the power off, make sure the wires are secure, and look for any signs of damage such as burnt or melted wires. Please remember that unless you feel comfortable with electrical wiring, hire a spa technician or electrician to test or replace the damaged parts.
Heating Element Failure – A Frequent Issue
The heating element in your hot tub often needs replacement and is a common reason for GFCI breaker trips. To check if it's the issue, turn off the breaker, disconnect the heater, and then turn the breaker back on. If it stays on, the heating element needs replacing. Some heaters have a replaceable element, while others require a complete heater replacement.
Seized or Damaged Pump Motor
A seized or damaged pump can trip the GFCI, necessitating repair or replacement. Optional accessories like blowers or ozonators may also cause breaker tripping and can be replaced or removed. Additional work may involve blocking plumbing, removing cables or wires, etc.
Fixing the Problem & Preventing Future Issues
Determining what is causing your GFCI to trip can take some time and care. But once you have narrowed down the culprit parts, you can usually have them replaced and get your spa up and running in no time.
