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Gas Heater Not Working? The 5 Most Common Causes

Many people find themselves in a situation where their gas heater isn’t working. Sometimes, it’s a simple fix and other times there may be more serious issues that need to be addressed. So if you are having trouble with your gas heater not working, here are the five most common causes of this issue:

  • Dirty filters
  • Defective igniter
  • Low gas pressure
  • Damaged or incorrectly installed piping
  • Defective thermostat
What Are the Most Common Causes of a Gas Heater Not Working?

What Are the Most Common Causes of a Gas Heater Not Working?

Dirty Filters

If you're having trouble with your gas heater, one of the most common causes could be dirty filters. Over time, filters can become clogged with dirt and debris, which can prevent them from working properly. Make sure to clean your filters regularly, and replace them when necessary.

If the filters are not clean, the gas will not flow through the heater correctly. Clean the filters as soon as possible to fix the issue. Or make sure to change your filters every 6 months to prevent dirt, dust, and other particles from getting into the gas heater.

Defective Igniter

The igniter is the part of the gas heater that starts the flame, and if it's defective, the heater won't work. Sometimes this can be fixed, but other times it might be best to replace the entire gas heater.

Low Gas Pressure

Another common cause of a gas heater not working is low gas pressure. This can happen if the gas supply to the heater is turned off or if there is a blockage in the gas line. If the gas pressure is low, the heater won't be able to heat up the room.

Make sure to check the gas pressure and to have enough in your tank to turn on the gas heater. Also, see to it that all piping is installed correctly and made out of durable materials. And replace any parts that need replacement.

More Common Causes of a Gas Heater Not Working

Damaged or Incorrectly Installed Piping

If your gas heater isn't working, another common cause is damaged or incorrectly installed piping. This can happen if the pipes are old and corroded, or if they were not installed properly, to begin with. Be sure to check the piping and make sure that it is made out of durable materials.

Pipes can become damaged if they're not installed correctly, or if they're not made out of durable materials. If this is the case, it might be best to have the gas heater replaced.

Defective Thermostat

The thermostat is one of the most important parts of a gas heater, and if it's not working properly, the heater won't work. It is a device that controls the temperature in a room, and if it's defective, the heater won't be able to reach the correct temperature.

There are a few different things that can cause a thermostat to be defective, and sometimes this can be fixed, but other times it might be best to replace the entire gas heater.

How Do I Check If My Gas Heater’s Wiring Is Also Defective?

In addition to checking the gas pressure and making sure that all piping is installed correctly and made out of durable materials, you should also check the wiring of your gas heater. This can be done by turning off the power to the heater and then removing the access panel. Once you have access to the wiring, visually inspect it for any signs of damage. If you see any frayed or damaged wires, it's possible that they are causing the heater not to work. In this case, you will need to either repair or replace the wires.

Now here’s how and why you need to vacuum your furnace to improve your heating system's efficiency.

Gas Heater Not Working: Is There a Way to Check If There Is Enough Gas Pressure in My Tank?

There are a few different ways that you can do to check if there is enough gas pressure in your tank.

  • One way is to check the pressure gauge on the tank itself. If the needle is in the green zone, then there is enough pressure.
  • Another way to check is to turn on the gas heater and see if it ignites properly. If it doesn't, then it's possible that there isn't enough gas pressure. In this case, you will need to call a professional to come and take a look.

What If My Gas Heater Has Damaged Parts?

If your gas heater has damaged parts, it's important to get them fixed as soon as possible. Otherwise, the heater won't work properly and could pose a safety hazard. Depending on the extent of the damage, you may be able to repair the heater yourself or you may need to call a professional for a gas furnace repair. If the damage is severe, it's possible that you'll need to replace the entire gas heater.

What to Do If My Gas Heater Isn’t Working?

Gas Heater Not Working: What to Do

One of the most important appliances in the home is the gas heater. It is an integral part of maintaining a comfortable temperature inside your home. This might sound simple, but there is a lot that is involved in owning a gas heater. They are expensive investments, require special care and maintenance, and don’t work when you don’t want them to.

In the winter, having a gas heater can make all the difference in the world when it comes to staying warm. But what if your gas heater isn't working? While there are a few different reasons why this might happen, you'll want to make sure you handle it as quickly as possible so you can get back to a warm home. And the most important is to get help from a professional gas heater repair expert.

Gas heater not working? Get professional help from CoolPro Heating and Cooling Atlanta. Message us for a free estimate and our team of HVAC technicians will be happy to serve you. We serve all brands and makes and we are available beyond normal business hours.

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About CoolPro Heating & Cooling

CoolPro is a family-owned and operated HVAC company providing heating and air conditioning services, repairs and installations to commercial and residential properties.

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