Should my furnace have a red light?

You will find a little red light on your furnace. If the light glows solid, it means your furnace is working fine. But if it starts blinking, it means there is something wrong with it. Look closely, and you will notice an error code.

Before you reach out to an HVAC technician near you for help, write down the code you see. If the red light is not on, your furnace is not receiving power. Check the circuit breaker box to see if the breaker has tripped.

Here are some reasons why the light on a furnace blinks:

Blower Running After Power Up

Usually, when power gets restored to your furnace, your blower will fire up, and you will see an error code. It happens at times, and you do not need to worry about it. Your furnace should start soon.

Pressure Switch and Inducer Failures

Every furnace has a pressure switch and inducer. The draft inducer motor removes gases produced during the combustion process from the heat exchanger. The pressure switch monitors the draft inducer motor to check if it is removing the gases properly.

If you have reasons to believe that your pressure switch or inducer is going bad, check your chimney and make sure it is not blocked. If the problem occurs for no apparent reason, reach out to a technician.

Furnace Lockout

A furnace lockout occurs when your furnace tries to fire multiple times but fails to ignite. To resolve the problem, reset your furnace by cutting the power supply at the breaker. Leave your furnace off for a few seconds, and then turn it back on.

Gas, Proving Fault or Ignition Failure

If you are getting a code that indicates flame failure, problems with the gas, or ignition failure, check your flame sensor to see if it is dirty. A dirty flame sensor may not detect the flame even when there is one. Clean your sensor gently with light grit sandpaper.

If your flame sensor is clean, there could be a problem with the gas valve or ignitors. Taking the DIY route could prove to be a costly mistake. To prevent future problems and steer clear of safety risks, have your contractor inspect your system.

High Limit Switch & Roll Out Switch

Both the high limit switch and roll-out switch detect heat. The high limit switch monitors the temperature inside the heat exchanger. The roll-out switch detects signs of excessive heat and shuts the furnace down to prevent a fire from starting if it overheats.

Need furnace repair service in Bryant? Look no further than Countryside heating and Cooling Solutions. Whether you have a regular furnace problem or grappling with a significant issue, we will come up with a sustainable solution. To talk to one of our pros, call (763) 299-9996.

You’ve probably noticed a little red light on your furnace that you didn’t see before. It’s fine; it’s supposed to be there. If the light is solid crimson or golden, everything is okay and your furnace is happy. But if you notice that the furnace light is blinking, it’s time to pay attention because something is wrong.

If your furnace’s signal light is blinking, there’s a problem. This blinking, like morse code, consists of dots and dashes. Before contacting someone to repair your heating system, take down the error code that you’re seeing. After that, the problem can be diagnosed and then fixed. Let the furnace repair experts in Cincinnati, OH resolve the issue.

Why Does a Red Light Appear on a Lennox Furnace?

Here are a few reasons why a red light appears on your Lennox furnace:

• Blower Restarting after a System Reboot: When your furnace’s power is restored, its blower often starts up. An error code may appear, but everything is ok. This is a system check for your heater, and it should begin shortly after.

• Combustion Failure, Fuel, or Fault Proving: Typically, a red blinking light indicates a fuel error, ignition malfunction, or flame-proving failure in the combustion assembly area. This could be because your flame sensor is dirty. While cleaning the flame sensor is a simple fix, it could also be a problem with the gas valve or ignitors, which is best left to professionals. Call the experts for furnace repair in Cincinnati, OH today!

• Failures of Pressure Switches and Inducers: Inducers and pressure switches are furnace components that ensure unwanted gas gets vented. You can verify if your furnace or exhaust is clogged first and then call an expert technician for help.

• A High Limit and a Rollout Switch: The thermostat’s two switches, which are for detecting heat, resemble the limit switches on a boiler. The high limit switch monitors the temperature inside the heat exchanger. To prevent the heat exchanger from overheating, it instructs the fan to shut off. If you get a high limit switch error code, consider changing your furnace filter. If that doesn’t work, seek help from a professional.

• Furnace Lockout: When a furnace has failed to ignite multiple times, it is known as a furnace lockout. You may reset your heating system by cutting the power to it at the breaker. Allow it to cool for a few moments before switching it on again. Sometimes all you have to do is turn off and on the device again.

If you don’t know what you’re doing and tamper with your furnace too much, you might end up making it worse. Call professionals for heating service in Blue Ash, OH to get it fixed right away.

We at Comfort Solutions Heating & Cooling are leading HVAC professionals and can help you save costs on your furnace repair or maintenance. To book our expert assistance, call us at (513) 932-7200.

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