Well it almost looks like a capacitor

[goblejosh]

 

[goblejosh]

Who knows what that is I thought it was a capacitor first but it only has point four ohms of resistance.

 

[goblejosh]

I'm trying to figure out if what I have is a capacitor or something I've never seen before it has 0.04 ohms of resistance. And everything else I've tried to test on it is out a range

 

[ChrisP58]

It's probably an inductor.

A single picture showing the whole thing would make it easier to tell.

 

[goblejosh]

I attached five pictures one of the complete board front and back and then I could have swore posted the ends the number and the whole picture of the component but I'll attach another one.

 

[eTech]

I'm trying to figure out if what I have is a capacitor or something I've never seen before it has 0.04 ohms of resistance. And everything else I've tried to test on it is out a range

might be an inductor

 

[rjenkinsgb]

Yep, inductor - in that last photo, you can see the wire from the end of the coil at the top, running down inside the sleeving.

 

[rjenkinsgb]

It's prefixed L on the PCB, which confirms it is an inductor.
ps. Be prepared to have a minor ear bending by the moderators, for starting two threads on the same topic.

 

[goblejosh]

It's probably an inductor.

A single picture showing the whole thing would make it easier to tell.

Thank you I learned something new today and you're right it's heavy enough to be a solid chunk of iron now I just got to figure out how to test it and make sure it's still okay thanks for the help I appreciate it

 

[JimB]

Two identical threads merged.

JimB (Moderator)

 

[goblejosh]

It's prefixed L on the PCB, which confirms it is an inductor.
ps. Be prepared to have a minor ear bending by the moderators, for starting two threads on the same topic.

Is there a way I can delete the other thread. I'm was in a hurry and while standing there I was reading and Cris 's name keep showing up so I follow the trail to where I thought he was. I'm trying to figure out the deal with this tankless water heater and I have be done just about all I could think of and did not know if the inductor was the problem or not because I couldn't figure out what it was I jus knew it wasn't a capacitor. Which I think I finally figured out what the problem is since I was able to delete that being the problem. And I greatly appreciate the help and I'm sorry I started to trends over the same subject but I was not getting any answers on the first one I got to answer on the second one before the first one ever drew any attention.

 

[rjenkinsgb]

Jim's already joined the two together, so no problem.

I suspect the inductor is a filter for a PWM signal to the 0-36V output on CN6
It's very unlikely to be a problem, commonly [but not always] they either fail open circuit, or are burned up due to an overload.

The only real test is using an inductance or LCR meter.

 

[goblejosh]

Jim's already joined the two together, so no problem.

I suspect the inductor is a filter for a PWM signal to the 0-36V output on CN6
It's very unlikely to be a problem, commonly [but not always] they either fail open circuit, or are burned up due to an overload.

The only real test is using an inductance or LCR meter.

Yes you're correct after I was informed of what I had it was easily eliminated from my trouble shooting.
With everyones help, I finally found the problem I was just looking at the wrong PC board. It's a corroded magnetic pickup on the water flow sensor is what my problem is apparently it got wet at some point in time and it's not functioning properly. It works long enough to start the fire and then go right out as soon as the water gets to flowing too fast for it to continually pick up.. and relay a singnal

I do appreciate all the information from you guys y'all have made me smarter than what I was and inlightened me on something that confused to crap out of me and had me stuck. I have to say good night it's been a long day I flush this thing out cleaned it up replumbed it everything I could think of except check the magnetic pickup the actual sensored. I hope everybody has a good evening or good day I don't know what time it is where y'all are at but it is 144 in the morning here so thank y'all and I'm going to bed