How do you clean a flame sensor on a heater?

Once you have removed the sensor, gently rub the metal rod (and nothing else) with a very light grit sandpaper. Remember, you’re not sanding down an auto body here, just ridding the sensor of any buildup. Then, use a clean paper towel to wipe clean any dust left behind by the sanding.

How often should a flame sensor be cleaned?

Generally speaking, the flame sensor should be replaced every two to three years as preventative maintenance. Some technicians also recommend changing it any time that there is a flame current issue.

What makes flame sensors dirty?

The most common is that it is dirty. Because burning fuel of any kind produces trace amounts of moisture, over prolonged exposure to these conditions, metal will rust. Since your sensor is made of metal, rust can build up, preventing proper sensing of the flame.

How much should it cost to replace a flame sensor?

If they are part of a routine maintenance service, they will cost about $200. Similarly, flame sensors often become too dirty and malfunction, but these sensors can be fixed with a thorough cleaning. However, if it’s too far gone and you must replace the flame sensor, it will cost you anywhere from $80 – $250.

Can you bypass flame sensor?

In short, you cannot bypass the flame sensor and manually light your furnace. Bypassing safety controls, even when possible, should never be done. … Instead, you should try cleaning or replacing your flame sensor to get it and your furnace back to good working order.

Can you use sandpaper to clean flame sensor?

Next, get a very light grain sandpaper, a wire brush, or steel wool. Use this to rub the metal rod gently, and only the metal rod, to clean the dirty flame sensor. You’re not sanding down a rusty car, here; you’re just trying to get rid of grit and buildup on the sensor. Be gentle, and don’t go overboard.

Why do flame sensors fail?

As with any piece of equipment a simple reason could be that dirty flame sensor just goes bad. However a more common reason is that it is just dirty. It is a sensitive sensor so any type of dust or carbon buildup could cause it to malfunction.

Can you clean a flame sensor with steel wool?

Clean the Sensor.

Once you have removed the sensor, gently rub the metal rod (only) with soft steel wool or soft scotch brie type pad NEVER USE SANDPAPER as it will damage the flame rod. … Then, use a clean paper towel to wipe clean any dust left behind .

Can I sand a flame sensor?

Bob, it sounds like the flame sensor is carbon-ed up. The flame sensor is a very simple component. … Remove it and sand it lightly with 150 grit sandpaper or so, (I used a sanding sponge), to remove all the dark carbon off the wire. Once it is clean, it should work for a month or two until you can order a new one.

How do you clean a furnace burner?

How do you clean the flame sensor on a gas fireplace?

Why is there black soot coming from my furnace?

As the furnace in your house burns fuel to create heat, especially natural gas, there are remnants left over after the process is completed. This is called “incomplete combustion.” One of the combustion byproducts is carbon, the primary ingredient in black soot, which is sent up the heat exchanger and out of the house.

Can you clean a furnace ignitor?

Try Cleaning the Ignitor With Compressed Air

If your furnace has a spark ignitor and it’s working haphazardly, it too could be covered with soot, and a blast of compressed air may be enough to clean it. Compressed air can also clean a blocked pilot tube that is causing the pilot flame to burn weakly or not at all.

Does a gas burner need to be cleaned?

An important component of gas furnaces is the burner – your furnace may have one, or multiple. The burner is the component where gas mixes with air then is burned to create heat. Gas furnace burners need to be cleaned as part of regular furnace maintenance, but we don’t recommend for homeowners to do this themselves.

How long do furnace Ignitor last?

about seven years
Fortunately, you can replace the ignitor without replacing the full furnace. Most ignitors last about seven years. Keep reading to learn how you can tell if your furnace problem is a faulty ignitor.

How do you clean a spark igniter?

Cleaning the Ignitor of Your Spark Grill

Start by removing the grates and heat spreader. Locate the ignitor and pour a small amount of vinegar over it. After letting it sit for a few minutes, use a drinking straw to gently remove any residue.

How much does a furnace ignitor cost?

Here’s the bottom line: Whether for a natural gas furnace, oil, or a propane furnace, replacing a furnace ignitor–including parts and labor–will cost you around $300 – $425 for a qualified contractor to install. Compare that to, say, a draft inducer motor, which will cost $400 – $1,500 to replace.

Does Walmart sell furnace ignitors?

Furnace Ignitor 41-408 (2 Pack) for Carrier, Bryant 62-22868 –

Does Lowe’s sell furnace ignitors?

White-Rodgers Furnace Igniter in the Furnace Accessories department at

Can you fix a furnace ignitor?

A gas furnace ignitor is what lights the gas, which is necessary for heat supply. … Problems with a gas furnace ignitor can be fixed using simple techniques. However, if the ignitor does not work at all, it will have to be replaced.

Where is the ignitor on my furnace?

Unscrew and remove the service panel on the side of the furnace and find the ignitor. It is usually mounted on a V-shaped bracket near the gas port. The ignitor has two wires attached to the back of it and has a flat metal tip.