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5 Reasons Your Water Heater Is Not Heating

water heater not heating

A water heater is a crucial component of your plumbing system that is useful during the winter. In colder climates, it can be especially alarming if it stops operating. The best course of action in that situation is to call a reputed water heater repair expert. However, you should be aware of a few typical water heater not heating issues to prevent them.

water heater not heating

Water heater not heating: Top 5 reasons for no hot water

  • Thermostat Malfunction:

Even a thermostat that operates properly may cause issues if it sets to a summer temperature. Increase the value because that won’t function during the winter. On the other hand, a faulty one will necessitate a total replacement. It is because it helps you to avoid further issues of the water heater not heating.

  • Rusting:

The most frequent issue with water-using machinery is rusting. The degradation of the anode rod is one of the main problems with rusting.

The aluminum or magnesium rod fits into the water tank. Hot water will start to erode the interior lining as the rod ages. It makes the water heater ineffective and prone to rust.

  • Improperly Fitted or Damaged In-Line Valve and Pressure Relief Valve:

A loose in-line valve is one of the common causes of water tank leaks. Therefore, tighten the nut holding the ball or in-line valve properly to solve the issue of the water heater not heating.

You will need to contact a nearby plumbing service to get a new in-line valve for your water heater.

If the valve atop your water heater starts to leak, you can take a new one to avoid the problem of the water heater not heating. Pressure relief valve replacement and removal are simple procedures.

  • Broken Heating Elements:

The most typical reason for a shortage of warm water in a home with an electric water heater is a damaged heating element. Besides, two heating elements of your water heater are in charge of warming up the entering water in the storage tank.

On the other hand, several issues can prevent a gas water heater from producing warm water.

Hence, a damaged gas valve or a blown pilot light could be the reason for this problem. Moreover, a broken thermocouple might also contribute to a shortage of hot water in your home.

You should either buy new parts for your water heater or contact a professional plumbing service for assistance with a water heater not heating.

  • Build-up of Sediments:

A lack of warm water can indicate that your water tank has accumulated too much sediment. In addition, water minerals like calcium and magnesium will start to build up at the base of the water tank.

It can happen when your water heater reaches the middle of its lifespan.

Less space will be available in the water tank to keep hot water as the minerals accumulate. Flushing your water heater will take care of this issue of the water heater not heating by getting rid of the extra minerals.


Your home’s water heater undergoes heavy pressure to produce hot water for your faucets and appliances. However, there are instances when it exerts itself too much, creating issues that can call for expert assistance.

When an issue arises just once, it can be annoying, but when it occurs multiple times every month, it becomes unbearable. Don’t let problems with your water heater slow you down.

Contact Caliber Plumbing to address any persistent problems with your water heater not heating.