PSoC
Sundance Spas
Control System Firmware / Processor Fault
Display shows PSoC or similar processor/system error; spa may be unresponsive or reboot repeatedly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Corrupted firmware on Sundance control board, Voltage spikes or surges, Internal board failure, Moisture intrusion into control box
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before opening the control box.
- 1. Power reset: Turn power OFF for at least 5 minutes, then restore power and observe if the error clears.
- 2. Inspect control box: Check for signs of moisture, condensation, or insect/rodent damage inside the control enclosure.
- 3. Verify proper grounding: Ensure the spa is correctly grounded and bonded according to Sundance installation requirements to reduce electrical noise.
- When to call a technician: Processor or firmware faults typically require control board replacement or reprogramming by an authorized Sundance service center.
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Repair Difficulty
Professional Required
5/5
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