Why is my Intex Hot Tub not heating properly?
- Aalyssa01Aug 17, 2025
If your Intex Hot Tub isn't heating properly, first, ensure the temperature is set high enough and the spa cover is on. A dirty filter cartridge can also cause this, so clean or replace it. If the heater is in STANDBY mode, press the flame button twice to start heating. If these steps don't resolve the issue, it could be a failed heating element.