What Should I Do If My Water Heater Is Not Producing Hot Water?

If your water heater isn’t producing hot water, start by confirming power or gas supply, then check basic safety resets. The most common cause is a tripped breaker or blown fuse on electric models, or an extinguished pilot/ignition issue on gas units; thermostats and heating elements or gas valves can also fail. Total loss of hot water usually traces to supply or a safety limit switch, not the tank itself. We service homes throughout the Salem area and can provide diagnosis with clear repair-or-replace options and same-day, free estimates.

Try these quick checks before calling:

• Electric: Reset the water heater breaker and press the unit’s high-limit reset (upper thermostat red button).
• Gas: Make sure the gas valve is on; relight the pilot or verify electronic ignition per the label.
• Tankless: Confirm gas/electric supply, clean the cold-water inlet screen, and note any error code.
• All types: Verify temperature setting, wait for recovery after heavy use, and look for active leaks. A significant leak, scorch marks, or any gas smell means shut off utilities and call a licensed pro immediately.

Updated: 2026-02-24

Need help in Salem, VA? Call (540) 238-0320 or book online. “Wisler Plumbing did a fantastic job fixing our hot water heater on a Sunday morning… got it fixed quickly.” — Marie B.