Lay-Z-Spa heater shuts off frequently and will not maintain the set temperature, especially in cold weather.

Safety first: Ensure all electrical components remain dry when adding insulation or covers.

• 1. Use lid and cover: Always keep the inflatable lid and outer cover on while heating to reduce heat loss.
• 2. Add insulation: Place an insulating ground mat or foam boards under the spa. Consider an insulating jacket or windbreak around the sides.
• 3. Limit bubbles while heating: Air bubbles cool the water. Use them sparingly when trying to reach or maintain high temperatures.
• 4. Check for drafts: Move the spa to a more sheltered location if exposed to strong wind or very low ambient temperatures.
• If performance is still poor in mild conditions: The heater may be underperforming due to scale or partial failure; consider descaling and, if needed, professional inspection.