Display shows DY or DRY Y and spa will not heat; often after DR events.

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.

Possible Causes

Heater high-limit lockout after dry-fire, Severely restricted flow, Failed heater element, Control board lockout logic engaged

How to Fix / Troubleshooting

Safety: Keep power off until water level and flow are confirmed.

Verify no leaks: Inspect the heater and surrounding plumbing for leaks that could have caused low water.
Restore proper flow: Clean filters, bleed air, and ensure circulation pump is operating correctly.
Power cycle: After correcting flow issues, turn power off for 5 minutes, then back on to clear the lockout.

If DY returns immediately or the heater does not warm the water, the heater element or control board may be damaged and should be tested with a multimeter by a professional.

Repair Difficulty

Hard 4/5

Required Part

Heater Assembly

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