Hey all,

I have a bit of a weird problem I'm hoping someone can help out with. The trough proximity sensor on my TZ is registering as closed/on all the time. Here's what I've tried.

1) Adjusting the sensor board - this didn't have any effect; I've had the board go out of adjustment before, so I looked into this first.
2) Testing the switches on either side of the trough proximity sensor - the trough sensor is number 26; I tested switches 16, 36, 25, and 27. They all tested out fine. This rules out a switch matrix issue.
3) I unplugged the eddy sensor board from the circuit board with the LED on it. The board's LED stayed lit, indicating to me that the problem is on this board, and not with sensor itself.

Any advice would be greatly appreciated; I'm not 100 percent sure how to go about troubleshooting this beast beyond what I've already done. Thanks, all.

Luke

Hey Lloyd,

I tried one more thing. If I isolate the board with the LED on it by unplugging the sensor feeding into it (i.e. it's just the board being fed by the four pin connector), the LED stays lit So, it's reading closed regardless of the sensor itself. If I unplug that board, the switch reads open. So, I'm thinking it's on that board, or at least part of the problem is on that board. I figured I could test all the components on the board and see if any of them have failed, although I'm unsure of how to test the chips themselves. Any thoughts? Thanks again!

Luke

Hey,

Thanks; I'll order one up. Much obliged.

Luke

Hey,

Don't mean to sound like an idiot, but where did you find those on Great Lakes Modular's website? Thanks!

Luke

Hey,

It seems that regardless of what I do to the actual sensor, the LEd stays lit.

Luke