- Ace Hardware Home Services/
- Blogs/
- Water Heater Not Hot
Water HeatersPlumbingAugust 06, 2025
Why Your Water Heater Isn’t Getting Hot & How to Fix It
A broken water heater is a frustrating experience, especially when you need to take a shower to get out the door. If your water heater isn’t getting hot, there are several possible causes behind the issue. Some are simple to address, while others may require a professional’s help. In this blog, our helpful plumbers at Ace Hardware Home Services break down the most common reasons your water heater might not be working as it should and what you can do next.
Call a pro for water heater repair if:
Schedule water heater services near you with Ace Hardware Home Services!
Thermostat Is Set Too Low
One of the simplest reasons a water heater might not produce hot water is because the thermostat is set too low. This applies to both gas and electric models. If you’re noticing lukewarm water rather than truly hot water, the thermostat may have been accidentally adjusted. A setting below 120°F can make the water feel noticeably cooler.Broken Heating Element
In electric water heaters, a faulty heating element can prevent the system from heating water properly. These units typically have two heating elements—one at the top and one at the bottom. If either fails, you may notice inconsistent or no hot water at all.Pilot Light Is Out
For gas water heaters, the pilot light is essential for igniting the burner. If the pilot light goes out, your water heater won’t be able to heat water. This can happen due to a draft, a faulty thermocouple, or buildup around the burner assembly.Tripped Circuit Breaker
If your electric water heater suddenly stops producing hot water, check the circuit breaker. A tripped breaker can cut power to the unit, rendering it unable to heat water until it’s reset. If the breaker continues to trip, that’s a sign of a larger electrical issue.Sediment Buildup in the Tank
Over time, minerals and debris from the water supply can settle at the bottom of a tank-style water heater. This layer of sediment can insulate the heating element from the water, reducing efficiency and leading to lukewarm or inconsistent temperatures.Faulty Gas Control Valve
In gas water heaters, the gas control valve regulates fuel flow to the burner. If it malfunctions, the burner won’t receive enough gas to heat the water. You might still hear the system running, but your water won’t be heated.Water Heater Is Undersized
If your household has recently increased water use due to more people living in the home or new appliances, your existing unit may not be large enough to keep up. This can affect both tank and tankless systems, though tank models typically run out faster under outsized demand.DIY Water Heater Repairs
Some minor issues can be resolved without calling for professional help. Try these tips first:• Check the thermostat: Make sure the temperature setting is at least 120°F.
• Inspect the pilot light: If the pilot light is out on your gas water heater, follow the manufacturer’s instructions to relight it.
• Reset the circuit breaker: If your electric unit doesn’t have power, check your panel and reset any tripped breakers.
• Flush the tank: If you’re comfortable doing so, draining the tank can help reduce sediment buildup and improve performance.
When To Call a Professional
Attempting complex repairs without proper experience can lead to safety risks or further damage to the unit. It’s always better to have a trained technician assess the situation when in doubt.Call a pro for water heater repair if:
• You suspect a failed heating element or gas control valve.
• Your breaker continues to trip after resetting.
• There are signs of corrosion, rust, or leaks around the tank.
• The pilot light won’t stay lit.
• You’ve tried basic troubleshooting but still have no hot water.
Restore Your Hot Water by Calling Ace Home Services
If your water heater isn’t working like it should, you can count on the helpful technicians at Ace Hardware Home Services for clear answers and reliable service. We offer comprehensive water heater services to get the hot water flowing in your home. Whether you need a repair, inspection, or new system recommendation, we make the process straightforward and stress-free.Schedule water heater services near you with Ace Hardware Home Services!
