6 Common Reasons Why Your Hot Water Heater Won’t Work

water heater

6 Common Reasons Why Your Hot Water Heater Won’t Work

Is your water heater not producing hot water as it should? Or does the hot water heater take an excessive amount of time to heat the water? When the device stops producing hot water, many people become pretty frustrated. Fortunately, you can take matters into your own hands when the need arises.

However, it is preferable to identify the source of the problem to be resolved. This article will explain why there is no hot water supply and whether it’s time to fix it DIY or bring in the pros.


In-Line Valve is Loose or Damaged

Unlike a leak in the bottom of your water tank, a water leak on top of your system is readily repaired. A faulty in-line valve is a typical source of water tank leakage. This is a handle on top of the water tank designed to activate or deactivate the flow of water.

Damaged Pressure Relief Valve

If you have a water leak near the pressure relief valve, then you will want to call a professional to repair the problem. An easier problem to fix is an inoperable solenoid valve. This problem is usually caused by debris or sediment jammed near the solenoid valve. This can be easily cleaned by opening the valve and removing the debris.

Burned Out Heating Element

Most tank-style hot water heaters utilise a heating element to heat the water. Over time, the electrical components of the heating element can become damaged. A power surge typically causes heating element damage. This can be prevented by installing a surge receptacle designed to protect electronic equipment.

Buildup of Sediment

Over time, sediment and debris accumulate at the bottom of your hot water heater. If the sediment is not appropriately filtered and drained, it will restrict the flow of the water. This can lead to various water flow problems, including water that is not hot enough. A water softener is an inexpensive upgrade that will help solve this issue.

Broken Thermostat

If your hot water heater’s thermostat cannot read the temperature correctly, it will heat water to an inaccurate degree, leaving you with just lukewarm water.

To determine if the thermostat is broken, raise the temperature and watch if the heater comes on. If it does not respond to the increased temperature and begins heating, the thermostat is likely faulty. You’ll need to replace the thermostat to resolve this issue. To avoid this from happening, get your hot water heater serviced by a professional at least once a year.

Broken Dip Tube

Inside your hot water heater, a dip tube feeds cold water into the tank from the top, then down to the bottom, where the hot water heater heats it up. A damaged dip tube can hamper the flow of water from the top to the bottom of the tank, which will ultimately affect your supply of hot water.

The dip tube will need to be changed if this is the case. Unfortunately, changing the dip tube isn’t always practical cost-wise, and replacing the complete hot water heater may be more cost-effective.


While it may seem easy to repair hot water heaters, hiring a professional is ultimately more cost-effective. A professional will diagnose the problem and repair your hot water heater promptly.

Do you need a plumber in the Northern Beaches? Plumd in Plumbing can help you solve those clogged toilets. Contact us today!

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