Water Tank Repair Services | RossCo Service Plumbers
RossCo Service Plumbers provides reliable residential and commercial water heater and storage tank restorations throughout Pierce County and South King County. When your system loses heating power or starts pooling water on the floor, prompt mechanical service helps protect your property from severe flooding. Our technicians quickly isolate component failures to restore your building’s hot water supply safely and cleanly.
Troubleshooting Electrical Element and Thermostat Failures
Electric water heaters use upper and lower heating elements that fire in sequence to maintain water temperatures. Over time, heavy mineral scale settles at the bottom of the tank, burying the lower element in a thick crust that causes it to overheat and burn out. If you find no hot water in your water heater, our technicians use digital multimeters to pinpoint the failed component. We then flush away the insulating sediment and install heavy-duty replacement elements to restore your hot water safely.
What is the most common cause for having no hot water in water heater units?
The most common cause for having no hot water in water heater units is a tripped high-temperature limit switch on the upper thermostat, which usually occurs when a heating element burns out or short-circuits due to heavy sediment buildup at the bottom of the storage tank.
Rheem Water Heater Diagnostics and Component Repairs
Modern water heaters rely on electronic control valves and sensors to cut power or gas instantly if they detect an operational fault. Troubleshooting these safety lockouts requires specialized knowledge of manufacturer error codes and system sequences. Our factory-trained team provides the exact expertise you need from a Rheem water heater service technician to clear complex system blocks. We check line pressures, clean burner assemblies, and replace faulty sensors with OEM parts to restore your hot water supply safely.
Managing Temperature Pressure Valves and Thermal Expansion Tanks
Storage tanks are subject to continuous physical stress from high municipal water pressure and thermal expansion. When water is heated inside a sealed tank, its volume increases, causing the internal system pressure to spike. To prevent the steel tank from warping or rupturing, a specialized temperature- and pressure-relief valve is installed near the top of the unit to weep excess water when internal limits are exceeded automatically.
If you notice water continuously dripping from the relief valve discharge pipe, it usually indicates that your thermal expansion tank has failed or that the main valve seat has corroded. Our team tests the air bladder pressure in your expansion tank and checks the main incoming water pressure at your property. We replace compromised relief valves and install correctly sized expansion tanks to absorb daily pressure spikes, thereby relieving the structural strain on your main tank shell and prolonging the lifespan of your appliance.
Frequently Asked Questions
Why is my water heater tank making a loud rumbling or popping sound when it runs?
Loud popping or rumbling noises indicate that a thick layer of mineral sediment has collected at the bottom of your tank. As the burner or lower heating element warms the water, pockets of moisture become trapped underneath this heavy scale layer. The trapped water quickly boils, turns to steam, and explodes through the sediment crust, creating a loud acoustic rumble inside your utility closet.
What causes a water heater tank to leak from the very bottom of the unit slowly?
A leak originating directly from the bottom shell of a water heater usually means the internal glass-lined steel tank has cracked or rusted through completely. This occurs when the internal sacrificial anode rod degrades entirely, allowing corrosive minerals to attack the steel wall directly. Internal tank cracks cannot be patched or repaired, so a complete unit replacement is required to prevent major flooding of the property.
How often should a standard hot water storage tank be flushed to prevent component failures?
Property owners should have their storage tanks professionally flushed at least once a year. Regular flushing removes loose calcium, lime, and rust particles before they can settle around the lower heating elements or burner plates. Keeping the tank interior clean prevents elements from short-circuiting, reduces popping noises, and maintains optimal operational efficiency.
Why does my hot water suddenly have a strong smell resembling rotten eggs?
A rotten egg odor is caused by a chemical reaction between sulfur-reducing bacteria in your water and the magnesium or aluminum sacrificial anode rod inside the tank. The anode rod is designed to corrode ahead of the steel tank walls, but as it degrades, it can release hydrogen sulfide gas. We resolve this by replacing the standard rod with a high-durability zinc-aluminum composite anode and chemically treating the tank.
What should I do if the high-temperature reset button on my water heater keeps tripping?
If the red high-limit switch on your upper thermostat trips repeatedly, do not continue resetting it. This safety switch trips because the internal tank water has reached dangerously high temperatures, typically caused by stuck thermostat contacts or an element that has shorted out against the tank wall. Keep the power turned off and secure a professional inspection immediately to prevent scalding or tank warping.