Losing hot water is one of the few plumbing failures a household notices within minutes. The useful thing to know is that most water heaters do not die suddenly, they decline in a pattern, and the pattern tells you what is wrong. Lukewarm water means something different from no water. Water that runs out early means something different from water that never gets hot. Reading those symptoms correctly is the difference between a part and a whole new unit.
What Each Symptom Points At
On an electric unit, hot water that turns cold partway through a shower usually means the lower heating element has failed and only the upper one is still working. No hot water at all is often a tripped high limit switch, which trips for a reason worth finding rather than just resetting. On a gas unit, a pilot or igniter that will not stay lit points at the thermocouple, the gas valve, or a blocked flue. Water that is scalding regardless of the setting means the thermostat has failed. Rumbling and popping when the burner fires is sediment boiling under the deposit layer on the tank floor.
The One Symptom That Is Not Repairable
If water is coming from the body of the tank rather than from a fitting, valve, or connection at the top, the tank has corroded through and no repair exists. That unit needs to be replaced, and it needs to happen before the failure becomes a rupture that empties 50 gallons onto the floor. If you see moisture or rust streaks at the base of the tank, shut the cold inlet valve and call. A dripping fitting, by contrast, is usually a straightforward repair.
Two Checks Before You Call
On an electric heater, check whether the breaker has tripped, and look for a red reset button behind the upper access panel. On a gas heater, look through the sight glass to see whether the pilot is lit. Either of those can save you a service call. If you smell gas anywhere near the unit, do not troubleshoot. Leave the house and call the gas utility before you call us.
When We Recommend Replacing Instead
A unit under eight years old with a failed element, thermostat, or thermocouple is worth repairing every time. Past ten to twelve years, with sediment buildup, a consumed anode rod, and a second failure in as many years, we will show you the arithmetic rather than argue about it. The repair may work and still be the wrong purchase. Our installation and replacement page covers what that path looks like, and maintenance covers how to avoid getting here early.
Local and Licensed
We stock common elements, thermostats, thermocouples, and valves on the truck, which is why most water heater repairs finish in one visit. Based at 16878 W Main St in Cut Off, Louisiana license 40204, in business since 1967, 4.9 stars across more than 200 Google reviews. Call (985) 632-6428.
