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Diagnosing and Cleaning Your Bryant Furnace Flame Sensor

Diagnosing and Cleaning Your Bryant Furnace Flame Sensor

Diagnosing and Cleaning Your Bryant Furnace Flame Sensor

Living in the southern part of the United States can cause us to receive harsher winters and more frequent cold fronts. We need things to help us protect from the cold, especially if we live in places like San Diego, California. One of the most important items we need to keep our furnaces running and effective is called the flame sensor. The flame sensor is a switch near the furnace flame that will detect when the flame has been extinguished. Therefore, it is absolutely essential to keep it in working order and diagnose it and clean it every now and then.

What is a Bryant Furnace Flame Sensor?

A Bryant furnace is equipped with several components designed to keep it running efficiently, the most important component being its flame sensor. The flame sensor itself is a safety feature located near the flame in your Bryant furnace. Its job is to detect whether or not the flame is burning in the furnace. When the flame is not detected it will send a signal to the furnace to shut down. This safety feature not only keeps your furnace from operating without detection of a flame, but it also prevents the build-up of carbon monoxide in the environment.

How to Check Your Bryant Furnace Flame Sensor

When it comes to checking the flame sensor in your Bryant furnace, it's important to keep a few safety tips in mind. First and foremost, it is essential to turn the power off at the circuit breaker before attempting to check the flame sensor. Once the power is off, the next step is to open the main access panel of the furnace and locate the flame sensor. The flame sensor should look like a small metal rod with a black tip. With the power still off, take a voltage meter and place one prong on the flame sensor, and the other on the side of the furnace. When you turn the power back on, the voltmeter should read anywhere between 0.2 and 0.6 volts.

How to Clean Your Bryant Furnace Flame Sensor

If the voltage reading is not within the 0.2 and 0.6 range, it is time to clean the flame sensor. Depending on the type of furnace you have, the sensor can be removed. Johnson Control's, for example, have a ceramic high-temperature thermistor, which allows them to be unscrewed from the furnace. However, some sensors are not adjustable, so it will be necessary to get a qualified technician to come out and clean the sensor for you.

If the sensor can be removed, the first step is to turn the power off at the circuit breaker. With the power off, you can remove the sensor and unplug the wires attached to it. To clean the sensor, you can use a soft brush or rag to scrape off any residue or dirt buildup. You can also use alcohol or a mild detergent and water to give the sensor a thorough cleaning. Once the sensor is completely clean, reattach the wires and insert the sensor back in the furnace, and turn the power back on the verify that the reading is within 0.2 and 0.6 volts.


If your flame sensor needs to be diagnosed and cleaned, proper safety measures and procedures should be taken. A flame sensor is essential for keeping your furnace running efficiently and safely, so it is important to make sure it is functioning correctly. If you wish to read more information about Bryant furnace flame sensor, please visit here. Also, if you have any further questions or need help diagnosing and cleaning your Bryant furnace flame sensor, please consider calling a local and reliable appliance repair service at (866) 516-1222, or visit here for more information.

Diagnosing and Cleaning Your Bryant Furnace Flame Sensor
Diagnosing and Cleaning Your Bryant Furnace Flame Sensor
Diagnosing and Cleaning Your Bryant Furnace Flame Sensor

Preventive Actions to Avoid Bryant Furnace Flame Sensor Issues

1. Professional Maintenance and Cleaning

The best preventive action an owner can take to avoid Bryant furnace flame sensor issues is to have the system regularly maintained and cleaned by a qualified HVAC technician. An experienced professional can identify potential issues before they become a problem, assess the condition of the flame sensor, and ensure that it is clean and working as intended.

2. Replace Air Filters

Air filters should be replaced every month or two, depending on the type of furnace and usage. Dirty filters can clog the heat exchanger, which can cause the flame sensor to malfunction.

3. Ensure Adequate Clearance

All Bryant furnaces require adequate clearance on the sides and back of the unit, as well as above and below the furnace. If the flame sensor is exposed to excessive heat, it can cause it to malfunction.

4. Check Wiring

The flame sensor typically contains two wires and must be securely wired in order to work properly. If the wiring is loose or faulty, it can result in an unreliable flame sensor.

5. Check Flame Sensor Bias Current

The bias current on the flame sensor should be checked periodically to ensure it is within the recommended range for the model. If the current is too high or too low, it can result in erratic flame signals and lead to flame sensor failure.

6. Clean Excess Dust and Debris

When the furnace is used more frequently, dust and debris can accumulate on the flame sensor and interfere with its operation. Periodically cleaning the sensor and the area around it can help maintain the flame sensor in optimal condition.

Average Repair Costs for a "Bryant Furnace Flame Sensor" Issue in San Diego

Are you looking to repair or replace the flame sensor in your Bryant furnace? The cost of the repair or replacement may vary depending on the complexity of the job and the parts needed. In San Diego, the typical repair cost can range anywhere from $25 to $200. Below we'll outline the itemized list of the most commonly replaced parts, what parts may be necessary, and provide an in-depth explanation of both the parts and labor costs of a Bryant furnace flame sensor repair.

The most common parts needed for a Bryant furnace flame sensor repair are a new flame sensor, a new dual solenoid control board, and electrical connectors. Depending on the type of Bryant furnace you have, additional material costs may be necessary.

The labor cost for a Bryant furnace flame sensor repair or replacement in San Diego typically ranges from $90 to $150 depending on the complexity of the job and the length of time it takes to complete the repair. It's usually best to hire a professionally trained technician for a job like this.

For the best professional advice, we recommend calling Local Reliable Appliance Repair at (866) 516-1222. They will be able to provide an in-depth cost estimate for the repair and installation of the needed parts. Plus, they have a team of experienced technicians who will be able to provide you with quality and reliable service.

Safeguard Your Home with Bryant Furnace Flame Sensor

The Bryant furnace flame sensor is an all-important component of a furnace that acts as a safeguard for the home. Without it, an uncontrolled fire will occur due to a lack of combustible material detection. Thankfully, for customers in the San Diego area who are in need of a Bryant furnace flame sensor replacement, Reliable Home Services is a local family-owned HVAC and appliance repair business with over 5 years of experience. They possess the knowledge and tools to provide same-day repairs and installation services, with a guarantee of safety and quality.

As a locally-based business, they prioritize their customers and offer fair and affordable pricing. Their staff is licensed, insured and highly trained with a minimal of 5 years of experience. And as a first-time customer, you can save up to $25 off labor services.

You can trust the knowledgeable technicians at Reliable Home Services to provide you with the highest quality of maintenance, repair and installation on all your HVAC and appliance needs. Rest assured that you are in good hands with their attentive and reliable professionals. So, let these experts take care of your Bryant furnace flame sensor repair, and ensure the safety and wellbeing of you and your whole family.

For fast and reliable furnace installations, repair or maintenance, contact Reliable Home Services at (866) 516-1222. Since they are a local family-owned business, you can be assured of personalized customer service and an unbeatable commitment to safety and quality. Get $25 off labor services as a first-time client and safeguard your home with Reliable's Bryant furnace flame sensor repairs.

FAQ: Diagnosing and Cleaning Your Bryant Furnace Flame Sensor

What is a Flame Sensor?

A flame sensor is an important component of a furnace. It senses the presence of a flame and then sends a signal to the furnace's gas valve. This tells the valve when to open and close to maintain proper gas flow.

What are the Symptoms of a Faulty Flame Sensor?

If your flame sensor isn't working properly, your furnace may experience a variety of issues. These can include: delayed ignition, lower than normal heating output, rumbling or clanking noises coming from the furnace, or the furnace turning off unexpectedly.

What Causes a Faulty Flame Sensor?

A flame sensor can become faulty due to dirt or debris build-up, age, or corrosion. This can cause the sensor to become weak and in turn, create a number of issues with the furnace.

How Can I Diagnose Whether the Flame Sensor is Faulty?

You can usually test the flame sensor with a multimeter. Start by locating the flame sensor, which should be near the furnace's burner. Then, disconnect the sensor, and set the multimeter to the "resistance" or ohms setting. Next, touch the probes to the terminals on the end of the sensor. A healthy flame sensor should show a reading of at least 1 ohms. If the reading is 0 ohms or the meter is unable to measure any resistance, then the sensor is likely faulty.

How Can I Clean the Flame Sensor?

To clean the flame sensor, you can use a fine-grit sandpaper to buff off any dirt or debris. Be sure to be gentle with the sandpaper, as you don't want to ruin the shape of the sensor. Once the sensor is clean, you should be able to test and confirm that it's in good working condition.

For additional help diagnosing or cleaning your Bryant furnace flame sensor, call Local Reliable Appliance Repair at tel:(866) 516-1222.