Most households in Sarasota and throughout Manatee County have electric water heaters. Electric water heaters are highly efficient and offer safe, quiet operation. These systems heat water using one or more heating elements. A common problem with electric water heater elements is premature failure. For some local homeowners, it’s a recurring issue that causes frustration and increases their overall water-heating costs. This article will explore common reasons these elements fail in Southwest Florida and what you can do about them.
Problem: Limescale and Other Sediment
In Sarasota, hard water is a common challenge for homeowners. High calcium levels can form limescale in water heaters, coating the tank and components, including heating elements. Over time, this buildup acts as an insulator, making the elements work harder to heat water. The extra strain not only increases energy use but can also shorten the heater’s lifespan and lead to uneven water temperatures.
Regular maintenance is essential to prevent these issues. For traditional tank water heaters, flushing the tank annually removes sediment and scale before it causes damage. Tankless water heaters also require periodic descaling to keep the heating elements clean. Consistent maintenance ensures your system heats water effectively, reduces energy costs, and minimizes the risk of costly repairs or premature replacement.
Preventing Rust and Corrosion in Tank Water Heaters
Rust and corrosion are common concerns in tank water heaters, especially in areas with hard or mineral-rich water. Over time, minerals and scale in the water can accelerate deterioration. This is particularly problematic for the heating element at the bottom of the unit. It can cause it to malfunction long before the tank itself shows signs of damage. Left unchecked, corrosion can reduce heating efficiency and eventually lead to leaks or element failure.
Tank water heaters are equipped with a sacrificial anode rod, which attracts rust through electrolysis and protects internal components. However, the anode rod gradually wears down and loses its effectiveness. During annual maintenance, our plumbers will inspect the rod and replace it if necessary, typically every three to five years. Keeping the anode rod in good condition helps protect the heating element and tank.
Optimizing Your Water Heater Temperature
Most water heaters are shipped from the factory set to 140 degrees Fahrenheit. Manufacturers choose this setting to reduce the risk of bacteria, such as Legionella, which can be dangerous to people with weakened immune systems. For the average household, however, this high temperature is unnecessary. Running your water heater at 140 degrees increases energy consumption and puts extra stress on heating elements, which can shorten their lifespan.
Lowering the thermostat to 120 degrees is usually sufficient for everyday use. The Environmental Protection Agency considers this temperature safe for most households. It also provides plenty of hot water for showers, dishwashing, and laundry while reducing energy costs. This setting also helps prevent scalding accidents, particularly for children and elderly household members. For tank water heaters, be sure to adjust both the upper and lower thermostats.
Problem: Inconsistent Thermostat Performance
Thermostats are among the most failure-prone components in electric water heaters. Unlike other parts that fail suddenly, thermostats often malfunction gradually, leading to inconsistent hot water temperatures. You might notice sudden swings between hot and lukewarm water, or a delay in heating. These fluctuations also make the heating elements work harder, which can shorten their lifespan and lead to premature failure.
Regular maintenance helps catch thermostat issues before they become major problems. During an annual service, your plumber will test and calibrate both the upper and lower thermostats to ensure they maintain the correct temperature. If a thermostat is worn or malfunctioning, replacement is quick and relatively inexpensive.
Preventing Heat Stress on Garage Water Heaters
Many Sarasota homes have water heaters located in garages, which generally doesn’t cause significant heat loss due to the warm climate. However, during Florida summers, garages can become very hot for long periods. Prolonged exposure to high temperatures can accelerate wear on electrical components and place additional strain on heating elements.
Homeowners can take simple steps to reduce heat stress. Keep the area around the water heater clear to allow proper air circulation. Running a small fan nearby can help dissipate heat and keep temperatures more moderate. For garages that get extremely hot, consider adding ventilation to protect your water heater.
Trusted Water Heater Maintenance and Repairs in Southwest Florida
At Arctic Air Home Services, we have served the residents of Sarasota, FL and surrounding areas for over a decade. Our team performs warranty and non-covered water heater repairs for all brands and models. We also replace water heaters, including conversions from tank to tankless systems. For emergency repairs, we have plumbers on call 24/7. We also provide financing for new installations upon approved credit to make upgrades more affordable. Contact us today to schedule an appointment with one of our experienced plumbers.
