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Heat Not Working? Check Your Thermostat Settings

It’s easy to jump to conclusions when your heating and cooling system isn’t delivering the air you want. However, the fix may be as simple as checking your thermostat settings.

Check Your Thermostat Settings

If your thermostat temperature is set incorrectly, your HVAC system’s hands are tied. Luckily, if this is the case, a few quick button pushes should be all you need to get back on track.

How to check your thermostat settings

  • Check the settings on your thermostat. If you want heat, make sure it's set to "Heat". If you need cool air, make sure it's set to "Cool". "Off" will shut down your HVAC system entirely, and should only be used when you're doing maintenance or if you suspect your system is failing.

    Some thermostats also have an "emergency heat" option that is specific to heat pump heating systems. Like the name implies, it should only be used when your heat pump is failing and you need to switch to another heating source.

  • Generally, the fan setting should be set to "Auto". The auto setting means that the fan will turn on whenever your heating or cooling system turns on, which helps to spread the warm or cool air around your home.

    "On" will keep the blower fan running in your vents even when the heating and cooling system is off. This can be helpful, but isn't necessary. "Off" keeps the blower fan off entirely, and can lead to warm or cold spots around your home and less efficient HVAC systems.

  • If you have a programmable thermostat, there's one more setting you need to check. Most programmable or smart thermostats have a calendar setting that will automatically reset your thermostat temperature during certain times or on certain days.

    If your thermostat says "Schedule", "Day/Time", or any other variation of this, you're likely on a set schedule. You can reset the schedule to your preferences, or override the schedule completely. On most thermostats, you can override the schedule by clicking "Hold".

    If your thermostat is on hold and you don't want it to be, clicking "Hold" again will release it on most thermostats.

If you’ve corrected your thermostat settings and your hot or cool air is still not working, consider other reasons for why your HVAC system is struggling.

What To Do If Your Thermostat Settings Are Wrong

When broken down into its most basic components, your thermostat is essentially a switch. Each time you change a setting, it's telling your HVAC system to turn on or off depending on the conditions you've set. If your thermostat settings are wrong, you can change them yourself.

If you want guidance on how to program your thermostat, connect with one of our Remote Assist technicians who can walk you through all the settings and buttons on your unit.

NOTE: This content is for informational purposes only, and HomeX and its affiliates disclaim all liability related to it. If you decide to perform any tasks based on this information, you assume all risks, including the risk of loss or damage to property or personal injury.

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