Common Water Heater Problems and How to Fix Them
A functioning water heater is essential for maintaining a comfortable home. From warm showers to washing dishes, it’s a luxury most of us can’t go without. When something goes wrong, however, it quickly disrupts daily life and can lead to unnecessary stress. Fortunately, many water heater problems can be identified and fixed with a little knowledge and effort.
This guide explores some of the most common water heater issues and provides actionable solutions to help homeowners restore hot water to their homes. By understanding these common challenges, you’ll know when it’s a job you can handle yourself and when it’s time to call a professional, like the trusted team at Picture Perfect Plumbing and Heating.
No Hot Water
Why it Happens:
One of the most frustrating problems a homeowner can encounter is turning on the tap, only to find cold water flowing out. This issue typically stems from a few common causes:
- The pilot light in gas water heaters has gone out
- A tripped circuit breaker in electric water heaters
- A malfunction in the thermostat or heating element
How to Fix It:
For gas water heaters, check whether the pilot light is still lit. If it’s out, you can relight it yourself by following the manufacturer’s instructions, but take proper safety precautions. For electric units, inspect the circuit breaker box to ensure the water heater hasn’t tripped. Resetting the breaker often resolves the issue.
If the problem persists, it could be due to a faulty thermostat or heating element. Diagnosing and replacing these components requires professional expertise to ensure proper handling and safety.
Leaking Water Heater
Why it Happens:
Leaking water heaters are usually caused by one of three problems:
- A loose connection at the inlet or outlet pipes
- A leaking pressure relief valve
- A crack or corrosion in the water tank
How to Fix It:
For minor leaks at connection points, carefully tighten the fittings with a wrench. If the pressure relief valve is the source, it may be due to excessive pressure or temperature in the tank. Replacing the valve can resolve the issue.
Unfortunately, if the tank itself is leaking due to age or corrosion, the only solution is to replace the entire unit. A leaking tank cannot be repaired, and a replacement ensures you’ll avoid water damage to your home. For these cases, it’s recommended to enlist the help of a licensed plumbing professional.
Strange Noises Coming from the Heater
Why it Happens:
Knocking, popping, or rumbling sounds emanating from your water heater are often signs of sediment buildup at the bottom of the tank. Over time, the sediment creates a barrier between the heating element and the water, causing overheating and noise.
How to Fix It:
Flushing your water heater regularly can help prevent sediment buildup. Start by turning off the heater, disconnecting the power or gas supply, and attaching a garden hose to the drain valve at the bottom of the tank. Flush the system by allowing water to flow until it runs clear, removing sediment in the process.
For persistent noise, it might be time to consider installing a water softener if your home has hard water. If the noises continue even after flushing, it’s best to consult a professional to rule out other issues.
Water Discoloration or Odd Smell
Why it Happens:
If your hot water appears discolored or smells strange, it could be due to corrosion in the tank or bacteria buildup. Rusty-colored water often indicates a failing anode rod, while a sulfur-like odor suggests bacteria growth inside the tank.
How to Fix It:
Start by checking and replacing the anode rod if it’s corroded. This component attracts rust to prevent it from forming on the tank walls. If sulfur odors persist, try flushing the tank as described earlier and treat it with a hydrogen peroxide solution. If these steps don’t resolve the issue, seek assistance from a professional plumber.
Low Water Pressure
Why it Happens:
While low water pressure isn’t always due to the water heater itself, if hot water pressure is weaker than cold water, it could indicate a buildup of mineral deposits in the pipes or tank.
How to Fix It:
Flushing the water heater can alleviate the buildup, improving overall water flow. Additionally, inspect and clean the sediment buildup in faucet aerators or showerheads, as this can also impact water pressure.
If low pressure persists throughout the home, it may be a broader plumbing issue, requiring an inspection from a licensed plumber.
When to Call a Professional
While some water heater problems can be addressed with a little effort and DIY expertise, others require the skilled hands of a professional. If you’re unsure about performing any repairs or encounter an issue beyond your comfort level, it’s always safer to seek professional help. At Picture Perfect Plumbing and Heating, our team of licensed experts is ready to evaluate, repair, and replace your water heater to get your home back to normal.
Picture Perfect Plumbing and Heating serves homeowners across New York City, providing trusted plumbing and heating services. Their experienced team offers everything from routine maintenance to emergency repairs, ensuring peace of mind with every project. Contact us today to learn more and schedule a service appointment.
