Get A Quote


Why is your thermostat on, but there is no heat?

Nothing is more irritating than coming home after a long and tiring day to a furnace system that is on but not blowing warm air. Without a furnace system, wearing layers of warm clothes and cozy blankets is recommended to save you from freezing and chill temperatures.

Do you know the reasons that explain why your heating system is working but not delivering warm air? Here are some reasons why that may happen and when you should call our furnace repair experts in Las Vegas for help.

Seven Reasons Why your heating system is not blowing warm air

  • Clogged Air Filter

If you neglect to replace the air filter every three months, dust and dirt will accumulate in the air filter and restrict the airflow. The warm air cannot get inside your residence due to blockage and restrictions in the airway.

You can try replacing the air filter and see if it helps fix the issue. The heating repair experts in Las Vegas recommend investing in a high MERV-rating air filter that can easily be cleaned.

  • The Furnace System Is Switched Off

The furnace is mostly installed in the attic or basement, and you might have turned down the switch connected to the furnace system. So, before panicking and calling HVAC experts for help, it is best to first go down to the basement and check all the switches.

  • The Low Or Leaking Refrigerant In The Heat Pump

Refrigerant plays an essential role in the heat pump system to absorb the heat from the outdoors and transfer it indoors. However, if the heat pump system is running low on refrigerant or there is leakage, it decreases the efficiency and performance of the heat pump system.

  • Electrical Issues

The furnace system might not be working due to a tripped circuit breaker. There might be issues in the electrical wiring connecting the thermostat to the furnace system, and the furnace system cannot respond to the changes made in the thermostat.

You might need to call our furnace repair expert in Las Vegas to check the electrical connections and inspect the system.

  • The Gas Supply Is Shut Down

In the furnace system, the gas pipe supplies the fuel to the furnace system, and the gas valve allows the flow of natural gas to the pilot light and burners. Ensure the gas valve is not turned off because if it is, the furnace does not have enough fuel to carry to the combustion process.

  • Dirty Pilot Ignitor

The furnace system’s ignition process is affected if excess dust settles on the pilot ignitor. You can clean the pilot ignitor after shutting the furnace system down or call the furnace repair technician for a quick cleanup.

  • Faulty Thermostat
    Sometimes, improper settings or malfunctioning thermostats can cause problems. In most cases, our heating repair experts in Las Vegas would recommend replacing the thermostat if there is a sensor or any other major issue.

In this high-tech world, it is best to invest in smart and programmable thermostats to make operating the HVAC system less tedious and more enjoyable.


Maintenance is essential if you want to save money on HVAC costs and avoid minor HVAC issues. Paramount Air technician will help you keep your HVAC system fit and efficient because our maintenance services are available at competitive prices.

Call us at (702) 861-0036 for assistance with your HVAC problems, and one of our experts will be happy to help.

Share This:

recent Posts

Do you Have a Booming Furnace? Call Us Now!

Hearing a loud booming sound when you switch on your furnace might be terrifying, and if you’re like most people, you’ll be curious as to what caused it. ...
Read More

Why is your thermostat on, but there is no heat?

Nothing is more irritating than coming home after a long and tiring day to a furnace system that is on but not blowing warm air. Without a furnace ...
Read More

Can You Repair A Broken Heating Element?

A heating appliance has become one of the most used systems, especially during winter. Based on its heavy usage, you may encounter a broken heating element that requires ...
Read More
Scroll to Top