Display shows dr; heater is disabled and spa may run pumps briefly then stop.
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
How to Fix / Troubleshooting
Shock hazard: Turn off power at the breaker before loosening any plumbing connections.
- Verify water level: Ensure water is at the proper level above all jets and skimmer.
- Open valves: Confirm all Hanscraft slice valves around the pump and heater are fully open.
- Bleed air: Loosen pump and heater unions to release trapped air until water flows, then retighten.
- Clean or remove filter: Remove the filter cartridge and run the spa briefly. If dr clears, replace or thoroughly clean the filter.
Do not continue to run the spa with a dr error; repeated dry-fire can damage the heater. If the issue persists, have the circulation system inspected.
Repair Difficulty
Required Part
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