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No worries. Just glad people are here to help. Next project is my 500Sq ft putting green in the back yard :)

Ok. I just fixed this stupid thing. Took the flame sensor out. Cleaned it. Then also disconnected the ignition module for a few minutes to clear the ingition lockout code. Plugged it all back and and BOOM. Works like a charm now! Thanks all for the help! Its working great now!

Found my fire place. FMIDVF36. Here is how it is wired.

Totally get what it does. Just don't see any place that it would plug/screw into on the gas valve or module.

House was built in 1997. Not sure the brand of fireplace. Found the Schematic. I am missing what looks like a ground from that "spark plug" back to the module But mine is wired like this.

Yea, this sensor only has the one 12v wire going to it. No other wire that goes back to the ignition module.

Ok uploaded with different client. Try now. post above this one should work.

Weird, I am uploading the pictures with google photos. Try them now.

The pictures are up. Not sure why you can't see them. It does not have a thermo coupling. It has a flame sensor. There is a Fenwal Ignition Control Module. When the switch is flipped to turn on the fireplace, the ignition module then gives power to the flame sensor/igniter as well as the...

Here are the images.

yea it has the wires hooked up. just measure resistance and it should be .7 or higher. ill do that today.

yea i dont have one anywhere. just that flame sensor.

The valve is a : 1/2" X 1/2" 24v Direct Spark Gas Valve (170,000 BTU) SKU: 722-051Brand: Robertshaw It ignites and flame goes for about 5 seconds then the lock out happens. The part that actually sparks (like a taser) has the electrode built on it. Looks like this.

So i got a new valve. it fires up but then shuts off after a few seconds. the ignition module sales "ignition lockout" I am guessing a bad electrode?

Yep, there is gas getting to the valve. I confirmed that. There was a vent screw i pulled out and when opening the gas line it actually comes out of the gas valve. The gas shut off valve is just a red lever inline on the gas line. There is no pilot light at all on this system. You flip a...

Turns out my valve is too old and they do not make it. Found a replacement valve and will be here Friday. Nealtw, As always, thanks for the help!

I am in the same boat! Hahaha

Yep, those specs all match up. Didn't think they were so much money. Saw some for a bit cheaper but they were 3.3"

Also, does it have to be 3.5"? I found plenty of 3.3" that match all the other specs.