I was a the shop wondering if I would ever need that tool. Now I need one because, that is an amazing tip to know. Thank you for sharing your knowledge
I just put the probe on the bracket or where the boot plugs in, put my other probe on the flame rod, move the probe slowly up and down the flame rod, and test continuity. If it shows continuity after you clean it it is good. If it is too chewed from condensate or whatever it will not. All that really matters is the hot junction has continuity. It works for me. The only thing I measure ohms on is the wire for the boot from the board. Here up north we mostly work on boilers though. I don't know what types of stuff you have going on down south. Anyways that method works for me
My furnace will eventually start blowing cold air. Flame sensor has been replaced and it seems like the cable connected to flame sensor & circuit board? might be damaged. Any test i can do to know for sure?
I had a junior tech call me for help because the furnace low volt fuse would blow every time the furnace would light. He unplugged the flame sensor and it lit for a few seconds then shut down, fuse intact. When he put it back and the furnace lit again, the fuse would immediately blow. That was definitely a oddball one. I suggested replacing flame sensor and bringing a control board just in case the new flame sensor didn’t fix it. Not sure what else it could be 🤷♂️ any ideas?
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I was a the shop wondering if I would ever need that tool. Now I need one because, that is an amazing tip to know.
Thank you for sharing your knowledge
My pleasure, but that tool goes well beyond that test.
I just put the probe on the bracket or where the boot plugs in, put my other probe on the flame rod, move the probe slowly up and down the flame rod, and test continuity. If it shows continuity after you clean it it is good. If it is too chewed from condensate or whatever it will not. All that really matters is the hot junction has continuity. It works for me. The only thing I measure ohms on is the wire for the boot from the board.
Here up north we mostly work on boilers though. I don't know what types of stuff you have going on down south.
Anyways that method works for me
That's not the same as this test. This is an insualtion test, not a flame rod continuity test.
Isn’t he further north if he’s in Canada?
Thanks just posted a video on my meter and didnt know what microamps were...thanks for your video!!!
My furnace will eventually start blowing cold air. Flame sensor has been replaced and it seems like the cable connected to flame sensor & circuit board? might be damaged. Any test i can do to know for sure?
I had a junior tech call me for help because the furnace low volt fuse would blow every time the furnace would light. He unplugged the flame sensor and it lit for a few seconds then shut down, fuse intact. When he put it back and the furnace lit again, the fuse would immediately blow.
That was definitely a oddball one. I suggested replacing flame sensor and bringing a control board just in case the new flame sensor didn’t fix it. Not sure what else it could be 🤷♂️ any ideas?
Can you use a Supco Megohmmeter M500 to do this test or do I need the ET600? Awesome video. Thank you for sharing your knowledge.
Good one! Didn’t know this before, thanks!
My pleasure
Great tip, didn't know about it 👍
Thanks Jim!
How do you like that meggar? I’m considering it as an alternative to the fluke option! Thanks!
It works quite well
Great video.
Thank you!
Greart tips. Thank you.
You're welcome!
Thank you!
Could I use supco m500
Should be fine yes
Gracias
Thanks
You're welcome
I like it
Thanks Nolan!
👍
👍
Anyone else try this?
I tend to avoid taking them off because of rust. I only do it if they look dirty/broken.