How To Test Flame Sensor Furnace
How To Test Flame Sensor Furnace. To determine whether the flame sensor is sending a signal to the gas valve, you have to connect a multimeter than can measure microamps (µa) in series between the sensor terminal and the wire that leads to the gas valve. To properly remove it, unscrew the ¼” hex head screw it is mounted by.
If you see that your furnace flame sensor matches any of these causes or even several of them, then your flame sensor is bad and needs to be either fixed or replaced. This test must be conducted with the power on because you need to take the reading when the furnace starts up. It tends to get dirty i guess from the flame and whatever is in the air.
Remove This Screw And Slide The Sensor Out Gently.
How to test a furnace flame sensor. Switch the power back on and restart the furnace. Watch the furnace ignite you will see spark or orange glow in front of one burner and the flame sensor should be on opposite side, but i.
It Tends To Get Dirty I Guess From The Flame And Whatever Is In The Air.
This test must be conducted with the power on because you need to take the reading when the furnace starts up. How to troubleshoot a flame sensor on furnace. After a flame is produced, the flame sensor should read current somewhere in the range of 2 to 6 microamps.
Meanwhile, The Porcelain Base Connects To The Burner Assembly.
Usually, it’s held in place by tabs and slots, knobs, and a few screws. It’s located within the burner behind the furnace access cover. Where is the flame sensor on the furnace?
Here Is How Easy It Is To Troubleshoot A Flame Sensor On The Furnace:
Video narrated by pci online hvac, lead faculty, bret doles. The furnace will go into lockdown mode; If the reading is below 5.0 microamps, you have a bad flame sensor.
This Means You Need To Disconnect The Wire From The Rod, Connect One Multimeter Lead To The Rod And Connect The Other To The Wire You Removed From The Rod.
These applications are more prone to fire accidents and explosions. Wait until the furnace turns on and the burners fire up. Once the screws are removed, the flame sensor will slide out of the furnace.
Post a Comment for "How To Test Flame Sensor Furnace"