Common Water Heater Problems
Water heaters are reliable appliances designed for constant long-term use. Like any appliance, however, water heaters can develop problems over time. Here are the most common hot water issues Seattle homeowners and businesses encounter:
Inadequate Hot Water
Insufficient hot water may indicate your water heater cannot meet your demand, so you may need a larger or more powerful unit. If the heater previously provided sufficient hot water but output has since decreased, it could be a sign of issues with the thermostat or the tank’s heating elements. A water heater tune-up could be all that is required to get your water heater back in shape.
Water Leaks
Broken plumbing pipes and loose pipe connections are some of the most common water heater leaks. Addressing such leaks is crucial to prevent further damage. If there is a leak in the tank itself, then the water heater has reached the end of its life and will have to be replaced.
Strange Noises or Vibrations
Bumping or vibrating noises coming from a water heater are often caused by sediment buildup in the tank. As the water heats up, the sediment is disturbed, leading to unusual sounds. Draining sediment from the tank usually resolves the problem.
Fluctuating Water Temperatures
Hidden leaks or thermostat issues can cause hot water temperatures to fluctuate. When operating properly, your hot water temperature should be consistent. A water heater tune-up will probably take care of the issue.
Sediment Buildup
Sediment buildup occurs when dissolved minerals solidify inside the water heater tank. Over time, sediment can interfere with proper water heater function. Sediment is more prevalent in areas with hard water and can be mitigated by regularly flushing the water heater tank or installing a water-softening filtration system.
Faulty Gas Pilot Lights
Gas water heaters can experience issues with their pilot lights. A trained professional should inspect the water heater pilot light, thermocouple, and associated sensors to determine the most effective solution.
Lifespan
Water heaters have an average lifespan of 8-12 years before requiring replacement. Some water heaters can operate efficiently for up to 20 years with proper maintenance.
Resolve water heater problems and loss of performance promptly to ensure your appliance continues to perform optimally. Recognizing the signs that a water heater needs repair can help you catch minor issues before they escalate into larger problems.
Don't hesitate to contact Roto-Rooter at 206-935-6600 for expert water heater repair in Seattle, or conveniently book an appointment through our online scheduling form. We're always available here to ensure your hot water supply remains reliable.
Roto-Rooter's Water Heater Repair Services
Roto-Rooter offers a comprehensive range of water heater services for residential and commercial customers in Seattle, including water heater replacement. Our dedicated team of plumbers and service technicians employs cutting-edge diagnostic tools to swiftly identify issues and we use top-quality replacement parts for all repairs. We specialize in servicing all water heater types, including traditional and tankless units, both gas and electric.
Roto-Rooter provides the entire Seattle metro area with the following water heater repair services:
Water Heater Leak Repair
Water Heater Replacement in Seattle
Water Heater Maintenance
Commercial Water Heater Repair in Seattle
Instant Hot Water Dispenser Repairs
Water Heater Assessment

LEAVE PLUMBING TO THE PROS
BECAUSE WITH ROTO-ROOTER, YOU GET MORE THAN A GUARANTEE.
- REPUTATION
Highly-trained professionals since 1935. A job done right by the original experts.
- TRANSPARENCY
No hidden or extra charges for plumbing or drain service on holidays, nights, and weekends.
- EFFICIENCY
Same-day and emergency service 365 days a year.
- QUALITY
Full-service plumbing, drain cleaning, and water cleanup – using state-of-the-art diagnostics and equipment.
- FINANCING
Get it fixed today and take time to pay. Special financing options available.
SPECIAL FINANCING AVAILABLE
We have partnered with Synchrony Bank to offer financing options to make your plumbing repair expenses as convenient and stress-free as possible.
Tips for Water Heater Maintenance
Regular maintenance and inspections extend the lifespan of water heaters and reduce the risk of serious issues. Here are some tips for homeowners and business owners who want to keep their water heaters running smoothly:
Schedule Regular Inspections
Regularly inspect your water heater for leaks, unusual noises, and changes to temperature settings. Early inspections help identify and address problems in their initial stages.
Flush the Tank Once a Year
Annual tank flushing removes sediment buildup, maintaining the heater's efficiency. Flushing a water heater involves turning off the unit’s power and water supply, attaching a hose to the drain valve, and draining the water. Once drained, turn on the water supply and turn the power back on when the tank is full.
Flushing a water heater is time-consuming and can be hazardous if you try to drain the tank while the water is hot. Roto-Rooter can flush your tank for you as part of your maintenance schedule or tune-up.
Check the Tank's Pressure Relief Valve
Check the performance of your water heater's pressure relief valve using your manufacturer’s instructions on how to do so. Or, Roto-Rooter can test the valve for you during routine maintenance.
Insulate the Tank
Insulating water heater tanks and pipes conserves heat, reduces energy consumption, and extends appliance lifespan if your water heater is installed in a garage or other unheated area. Proper tank insulation saves energy and reduces the tank’s workload, putting less stress on the heater and increasing the appliance’s lifespan. Remember to use foam insulation sleeves to cover the water pipes connected to the heater, too.
Lower the Water Temperature
Lowering a water heater's temperature to 120℉ reduces its workload while meeting most buildings’ hot water needs. This temperature also prevents the risk of scalding, which is especially important if there are children or elderly people in the home.
Schedule Regular Professional Inspections
While Seattle home and business owners can identify some hot water problems and perform minor water heater adjustments, professional plumbers possess the expertise needed to identify subtle signs of developing problems. Roto-Rooter's water heater specialists conduct thorough inspections tailored to your specific water heater type.