Your Water Heater Just Stopped Working. Here’s What to Do.

Few things derail a morning faster than turning on the shower and getting nothing but cold water. If your water heater has stopped working suddenly, KT Plumbing wants you to know two things: don’t panic, and there are a few things worth checking before you call anyone.

Here’s a practical rundown of what to do when your hot water goes out.

Start With the Obvious Stuff

Before assuming the worst, run through a quick checklist. A surprising number of “broken water heaters” turn out to be something much simpler.

For gas water heaters, check that the gas supply valve is fully open, look at the pilot light or electronic igniter status light, and confirm that other gas appliances in your home are working normally.

For electric water heaters, head to your electrical panel and check for a tripped breaker. Reset it if needed and wait about an hour to see if hot water returns. Also check if the high-temperature cutoff switch on the unit itself has tripped — there’s typically a reset button behind a small panel on the heater.

These aren’t long shots. Tripped breakers and extinguished pilot lights account for a significant chunk of “dead” water heater calls.

If the Basics Don’t Fix It

If you’ve checked the power or gas supply and everything seems fine, the problem is likely inside the unit. Here’s what’s commonly behind a sudden failure:

• Burned-out heating element (electric units) — one or both elements can fail, leaving you with no hot water at all or just a trickle
• Failed thermostat — controls when the heating elements fire; a faulty one can mean no heating at all
• Faulty gas valve or thermocouple (gas units) — if the thermocouple can’t sense the pilot flame, it shuts off gas flow as a safety measure
• Heavy sediment buildup — a thick layer at the bottom of the tank can insulate the water from the heat source entirely
• Tripped pressure relief valve — occasionally trips under unusual pressure conditions; needs professional evaluation before being reset

At this point, it’s worth calling a licensed plumber to diagnose the issue rather than guessing. The KT Plumbing team handles water heater repair throughout Greer and can usually identify the problem quickly.

Repair or Replace? Here’s How to Think About It

This is the question most homeowners want answered right away, and it depends on a few factors.

Repair usually makes sense when the unit is less than 8 years old, only one component has failed, and the tank itself shows no signs of corrosion or leaking.

Replacement is usually the smarter move when the unit is 10 or more years old, you’ve already repaired it before and something new has failed, there’s rust or corrosion present, or your energy bills have been creeping up for no clear reason.

A good plumber will give you a straight answer rather than default to the most expensive option. That’s what we aim to do.

What New Installation Actually Looks Like

If replacement is the right call, a professional water heater installation in Greer typically takes a few hours for a standard tank unit. It’s also a smart time to reconsider sizing. If your household has grown since the original unit was installed, right-sizing now saves you from the same lukewarm-shower problem down the road.

It’s also worth considering a Greer tankless water heater if you’re already replacing the unit. Tankless systems heat water on demand rather than keeping a full tank hot around the clock, which cuts energy costs meaningfully over time. They cost more upfront, but for many Greer homeowners the long-term savings make it worth the investment.

While You’re Waiting on a Plumber

A few practical steps in the meantime:

• Turn off the power or gas supply to the unit to prevent damage to dry heating elements
• Shut off the cold water supply to the heater if there’s any leaking present
• If you smell gas, don’t try to relight anything — leave the house and call your gas company first

Hot water isn’t a luxury. If your system has stopped working and you’re in the Greer area, contact KT Plumbing and we’ll get someone out to you.