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David WilsonAug 14, 2025
Why is my mspa U-VT061 Hot Tub not heating properly?
- MMario PearsonAug 14, 2025
Your MSpa Hot Tub might not be heating properly due to several reasons. Check if the temperature is set too low and increase it. A dirty filter cartridge can also cause this, so clean or replace it. Ensure the water level is at least at the minimum line. If these steps don't resolve the issue, there may be a heater failure, or the filter pump may not be working; in the latter case, refer to the section on 'FILTER PUMP DOES NOT WORK'.