Few things are more frustrating than stepping into a cold shower only to realize your water heater has stopped working. Whether you rely on it for bathing, laundry, or dishes, your water heater is one of the most essential appliances in your home. When it fails, it’s important to know what steps to take before calling a professional. Here’s a quick guide to help you troubleshoot the problem safely and efficiently.

1. Check the Power Supply

The first step is to make sure your water heater is actually getting power.

• For electric water heaters: Check your circuit breaker panel. A tripped breaker is one of the most common reasons an electric heater suddenly stops working. If you find a tripped switch, flip it back to the “on” position and wait to see if the unit starts heating again.

• For gas water heaters: Verify that the pilot light is lit. If it’s out, follow the manufacturer’s instructions to relight it safely. If it won’t stay lit, there could be an issue with the thermocouple or gas line—both of which should be checked by a professional plumber.

2. Inspect the Thermostat Settings

Sometimes, the problem is as simple as incorrect thermostat settings. Ensure your water heater’s thermostat is set to around 120°F (49°C)—the recommended temperature for most households. If the thermostat is set too low, your water may not heat properly.

If adjusting the thermostat doesn’t solve the issue, it might be a sign of a faulty heating element or thermostat that needs replacement.

3. Look for Signs of Leaks or Water Damage

If your water heater isn’t working and you notice pooling water around the base, corrosion on the tank, or dripping from the pipes, you may have a serious problem. A leaking tank often means the internal lining has failed, and the unit will likely need to be replaced.

Immediately shut off the water supply to the heater and contact a professional. Do not attempt to repair a leaking tank yourself, as it can lead to further damage or safety hazards.

4. Listen for Unusual Sounds

Loud popping, rumbling, or hissing noises coming from your water heater are signs of sediment buildup. Over time, minerals from hard water can settle at the bottom of the tank, reducing efficiency and causing heating elements to fail prematurely.

If you suspect sediment buildup, a professional plumber can flush the tank to remove debris and restore performance.

5. Don’t Ignore Warning Signs

Water heaters typically last 8–12 years, depending on maintenance and water quality. If your unit is nearing the end of its lifespan and experiencing frequent issues, it may be more cost-effective to replace it rather than repair it repeatedly.

Ignoring problems like inconsistent temperatures, discolored water, or strange smells can lead to complete system failure—or even flooding.

Stay Warm with Help from NC Plumbing Pros

When your water heater stops working, don’t panic—just take these simple steps to troubleshoot safely. But if the issue persists or you notice leaks, unusual noises, or no hot water at all, it’s time to call in the experts.

At NC Plumbing Pros, we specialize in fast, reliable water heater repair and replacement services. Our licensed plumbers can quickly diagnose the issue and get your hot water flowing again.

Call NC Plumbing Pros today at (919) 752-4141 for prompt, professional service you can trust.