SE
Sundance Spas
General Sensor Error (Temperature or High-Limit)
Display shows SE or SENSOR ERROR; 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
One or both thermistors out of range, Mixed sensor types installed, Loose sensor harness on control board, Control board firmware misreading sensors
How to Fix / Troubleshooting
Safety first: Disconnect power at the GFCI breaker before opening the control box.
- 1. Identify sensors: Sundance systems typically use two sensors: water temperature and high-limit. Verify both are connected and of the correct type for your model.
- 2. Reseat connectors: Unplug and firmly replug each sensor connector on the control board.
- 3. Inspect cables: Look for damage along the sensor leads from the heater to the board.
- 4. Replace in pairs (recommended): If one sensor has failed, it is often best to replace both with a matched Sundance sensor kit to ensure accurate readings.
- When to call a technician: If SE persists after sensor replacement, the control board may be defective and should be tested by a professional.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Sensor Kit (Water & High-Limit Thermistors)
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements