Spa trips the GFCI breaker immediately or within a few seconds of turning on.

Safety: Repeatedly resetting a tripping GFCI without finding the cause is dangerous. Turn off power and investigate.

• Step 1 – Visual inspection: Open the equipment bay and look for obvious water leaks onto electrical components, burnt smells, or charred wiring.
• Step 2 – Isolate components: With power off, disconnect the heater leads from the control pack and try powering the spa. If the breaker no longer trips, the heater is likely faulty.
• Step 3 – Test pumps: Reconnect heater and instead unplug each pump one at a time, powering up between tests to identify a shorted pump.
• Step 4 – Ozone and accessories: Disconnect the ozone generator and any lighting transformers to rule them out.
• Step 5 – Professional service: If the fault cannot be isolated, have a qualified spa technician perform insulation resistance tests and repair.