How to Test a Flame Sensor – Good day Allellpro – When you’re having bother together with your furnace or boiler, it might be because of a defective flame sensor. The flame sensor is a vital part that detects the presence of a flame and sends a sign to the management board to maintain the furnace or boiler operating. On this article, we’ll focus on how you can check a flame sensor to find out if it is faulty.
What’s a Flame Sensor?
A flame sensor is a security system that detects the presence of a flame in a furnace or boiler. It is usually a metallic rod with a ceramic insulator that’s positioned close to the burner. When the burner ignites, the flame sensor detects the flame and sends a sign to the management board to maintain the furnace or boiler operating.
Easy methods to Take a look at a Flame Sensor
Testing a flame sensor is a comparatively easy course of that requires a number of instruments:
- Sandpaper or emery fabric
Here is how you can check a flame sensor:
- Flip off the facility to the furnace or boiler.
- Take away the flame sensor from the burner meeting.
- Clear the metallic rod with sandpaper or emery fabric to take away any dust or particles.
- Reinstall the flame sensor again into the burner meeting.
- Activate the facility to the furnace or boiler.
- Set your multimeter to measure DC voltage and contact the probes to the flame sensor’s wire connectors.
- Begin the furnace or boiler and let it run for a couple of minutes.
- Test the multimeter studying. It needs to be between 1.5 and 4 DC volts. If the studying is exterior this vary, the flame sensor is defective and must be changed.
- If the flame sensor is working appropriately, flip off the furnace or boiler and reinstall any parts that had been eliminated.
Listed here are some often requested questions on flame sensors:
How usually ought to I check my flame sensor?
Can I clear my flame sensor with water?
What ought to I do if my flame sensor is defective?
A defective flame sensor is usually a security hazard on the subject of working your HVAC system, significantly the furnace. The flame sensor is liable for detecting whether or not the ignition has taken place and if there’s a hearth in your furnace. When it’s defective, the sensor might not detect whether or not there’s any fireplace, which might trigger harm to your property and even an explosion in extreme instances. Due to this fact, it is essential to check and substitute a defective flame sensor as quickly as doable.
A technique of testing whether or not your flame sensor is working appropriately is by visually inspecting it. Swap off the facility provide to the furnace and take away the quilt that homes the flame sensor. Test for any cracks or indicators of damage on its floor. If there are any seen damages, then it’s essential substitute them instantly with a brand new one.