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Old 10/02/2019, 01:02 PM   #1
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Join Date: Dec 2016
Posts: 20
Tunze 7090 Controller

I have a pair of 6055’s. The attached 7090 controller on the one seems to either be stuck in some kind or mode or is showing an error. The “external control” light seems to be stuck on. No matter what mode I switch to the amber “external control” light stays on. If I increase the main power control knob the knob light instantly goes bright blue like it’s at full power and then the “external control” like turns off. If I turn it back down the the light come back on.



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Old 10/02/2019, 02:45 PM   #2
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Join Date: Apr 2000
Location: Austin Texas USA
Posts: 35,551
I can think of a few possible causes.

1) The buttons may be stuck, opening it should solve that and then you can close it back up leaving the screws a little looser.

2) The controller may have some water damage, this would be apparent when open and this may be by no fault of your own if the cable has a defect or tear, we would just have to check.

3) The controller is simply defective.

Roger Vitko
Tunze USA

"He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!"

Current Tank Info: 210 gallon planted tank with Altum Angelfish
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