Display shows “ICE”; pumps may run automatically even when spa is “off”.

Safety first: Do not shut off power in freezing conditions; this mode protects plumbing from freeze damage.

• Keep cover on: Ensure the spa cover is closed and in good condition to retain heat.
• Verify heater operation: Confirm the heater is enabled and that the spa is set to a normal operating temperature (e.g., 100°F).
• Check water level: Low water can reduce heat transfer and trigger ICE. Top off as needed.
• Monitor until cleared: ICE will clear automatically once water temperature rises above the freeze threshold.

If ICE appears in mild weather, the temperature sensor may be faulty and should be tested or replaced.