What to Do When Your Water Heater Stops Working

Losing hot water is more than just an inconvenience—it disrupts your daily routine, from taking showers to washing dishes and doing laundry. In Roanoke and the surrounding Blue Ridge areas, a sudden lack of hot water is one of the most common plumbing calls we receive.
At Layman's Contracting, we've been serving homeowners in Roanoke, Wirtz, Franklin County, and Bedford County since 1995. We know the local water conditions and the specific challenges they present to water heaters. If your water heater has suddenly stopped working, don't panic. Here are the essential steps you should take to troubleshoot the problem and determine when it's time to call in a professional.
1. Check the Power Source
The most common reason for a water heater failure is a simple power disruption. Whether you have an electric or gas water heater, it needs power to operate correctly.
Gas Water Heaters: Check the pilot light. If it's out, follow the manufacturer's instructions on the side of the tank to relight it. If it won't stay lit, the thermocouple may need replacement.
2. Inspect the Area for Leaks
Before doing any further troubleshooting, inspect the area around the base of your water heater for standing water or signs of moisture.
3. Verify the Thermostat Settings
Sometimes the issue is as simple as the thermostat being accidentally bumped or set too low. For optimal performance and safety, the Department of Energy recommends setting your water heater thermostat to 120°F.
4. Consider Sediment Buildup
In Southwest Virginia, hard water can lead to mineral and sediment buildup at the bottom of your water heater tank over time. This sediment insulates the water from the heating element, causing the heater to work harder and eventually fail. If you hear popping or rumbling noises coming from the tank, sediment is likely the culprit.
5. Know When to Call a Professional
Water heaters involve high voltage electricity, natural gas, and scalding hot water under pressure. If you've checked the breaker or pilot light and the unit still isn't working, it's time to call in the experts. Attempting DIY repairs on internal components can be dangerous and may void your warranty.
Need Fast Water Heater Repair in Roanoke?
A broken water heater is an emergency. At Layman's Contracting, our licensed plumbers are available 24/7 to diagnose and repair your water heater, or install a high-efficiency replacement if necessary.