Is your hot water not, well, hot? There are a few reasons why your water might not be heating up. Here are the most common culprits. 

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Low Hot Water Capacity

One possibility is that your water heater simply doesn’t have the capacity to keep up with your household’s demand for hot water. Try limiting your usage and see if your hot water comes back. If it does, that means hot water capacity is the problem. Consider upgrading to a new water heater that can supply more hot water at once.

Pilot Out or Ignition Failure

If your gas water heater has an ignition failure or the pilot is out, the burner will not fire. This causes a cold water tank. Check your pilot light and if it’s out, call in a plumber to have your water heater serviced and repaired.

Broken Burner or Element

As water heaters age, the parts wear down and the heating elements will eventually stop working. When a heating element goes out, you won’t have any hot water. In some cases it may be worth it to have your heating elements replaced, but often this is a sign that it is time to completely replace your water heater.


If your water won’t heat up, there may be a leak in your water heater that makes it so your hot water can’t get to its destination. Check your water heater for water pooling underneath or condensation on the tank itself. If your water heater is leaking, call a plumber to fix it right away.

If you’ve got a problem with your water heater, get in touch with Lone Star Plumbing & Heating today! Our experienced plumbers can identify and fix the problem or replace your entire unit if needed.

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