My Spa Heater Stopped Working

While spas can present a luxurious experience of soothing your body in warm water and relaxing jets, they often require troubleshooting and maintenance. A common problem is that the spa fails to heat the water sufficiently or at all. Most spas contain similar parts and processes. This helps create a universal approach to spa troubleshooting and correcting issues that can reduce the spa's ability to heat water. Following a few steps can help you properly diagnose and fix your spa's problems.

Heating problems are common in spas and require simple diagnostics to identify the cause of the problem.
  1. Check the spa's control panel. Many spas have different modes to save energy. If a spa is not in its standard mode, the water may not heat properly.

  2. Open the filter cartridge and clean the filter. Dirty filters often restrict water flow in the spa, negatively affecting the water heating process.

  3. Bleed air from the pump and plumbing. Most spas have valves and other plumbing particulars that need to remain open and free from air. If these valves restrict water flow, the spa will often not heat properly.

  4. Check the electrical connections to the spa. A simple diagnostic tool is to shut power off (at the breaker) to the spa and turn it back on. Also review connections to ensure no water comes in contact with them.

  5. Test the heater and pump. This step should only be performed if the hot tub has GFCI protection. With the spa turned on and the access panel removed from the side of the hot tub, look at the main control center to see if there are any indicator lights on. If not, the control center may need replacing. Using a non-contact voltage tester, check the wires leading to the heater and pump to determine if they are energized. If not, the control center may need servicing. If the wires are energized, then that associated piece of equipment may need to be replaced.

About the Author

Daniella Lauren has worked with eHow and various new media sites as a freelance writer since 2009. Her work covers topics in education, business, and home and garden. Daniella holds a Master of Science in elementary education and a Bachelor of Arts in history from Pensacola Christian College.