dr
Dynasty Spas
Dry Heater / Insufficient Water in Heater Tube
Display shows dr or DR, heater will not run and spa may not heat.
Advertisements
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.
Advertisements
Possible Causes
Air lock in heater, Very low water level, Blocked filter or closed valves, Failed circulation pump
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker to prevent heater damage.
- Check water level: Ensure the spa is filled to the recommended level above all suction fittings.
- Clean filter: Remove and rinse the Dynasty Spas filter cartridge. Test briefly without the filter to see if the error clears.
- Bleed heater and pump: Loosen the unions on the heater and circulation pump to release trapped air until water flows steadily, then retighten.
- Verify pump operation: Restore power and confirm that the circulation pump is running and water is moving through the heater return. Replace the circulation pump if it fails to run or move water.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Circulation Pump
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements