Why Spa Heaters Burn Out

Water Filled Incorrectly

• Filling your spa with water incorrectly can cause the heater to burn out. The correct way to fill the spa is to use the filter mechanism. Using warm water if possible, connect a garden hose to the filter’s pipe opening and fill at maximum pressure. Do not use softened tap water. Fill the spa so that the water level reaches 2 to 3 inches above the filter. Turn on the power immediately. Turn the jets on and off to ensure proper function.

Blockages

• Foreign parts blocking the heater, filter or other elements can cause the heater to malfunction and burn out. If you notice the heater is not working properly, check for blockages and remove any foreign objects. Prevent blockages by keeping children’s toys, plastic beverage bottles and other things that could cause blockages out of the spa.

Chemical Issues

• Chemical imbalances in the water can cause the spa heater to burn out. Water that is highly acidic can break down the rubber seals on the heating mechanism, for example. Water that is highly alkaline can cause rust and calcium buildup in the parts, eventually causing burn out. To prevent these problems, always use chemicals specifically designed for spas and check the pH level regularly. Never use chemicals designed for swimming pools. Spa Specialist recommends adding a sequestering agent to prevent mineral deposits.

Old Age

• Most spa heaters will burn out after a certain number of years, even if you take good care of them. The actual life expectancy of a spa heater varies according to the make and model. Check with the manufacturer for specific information regarding the life expectancy of your heater. In some cases, you can replace an element of the heater, such as the electric coil or rubber seals, to avoid the cost of buying a new heater.