Display shows EC or ECO and spa heats only during filtration cycles

Note: EC is typically a mode indicator, not an error. The spa will only heat during programmed filter cycles.

• 1. Check current mode:
  • Press the mode or settings button on the topside panel.
  • Cycle through modes (e.g., Standard, Economy, Sleep) until Standard or desired mode is selected.
• 2. Adjust filtration schedule:
  • Increase filter cycle duration or frequency if you prefer Economy mode but need more heating time.
• 3. Monitor temperature:
  • Allow several hours for the spa to reach set temperature after changing modes.