Display shows ICE or IC; pumps may run automatically even when spa is not in use.

Safety: Do not shut off power to the spa in freezing conditions; freeze protection relies on powered pumps.

• Confirm environment: If outdoor temperatures are near or below freezing, ICE is normal. The spa is circulating water to prevent freeze damage.
• Check cover and insulation: Ensure the MAAX spa cover is in good condition and properly latched to retain heat.
• Verify water level: Maintain proper water level so pumps do not draw air while running in freeze mode.
• Sensor check: If ICE appears in warm weather, test the water temperature with a thermometer and compare to the display. Inspect the ambient or water sensor wiring for damage.
• Replace faulty sensor: If the sensor is reading too low, install a new MAAX-compatible sensor to prevent unnecessary freeze cycles.