6055 Feed Button Stopped Responding

[jah hoeva]

I have two 6055's linked. Use one as the master so I hit the one button to feed the tank. Today that button stopped responding. Any way to fix this? For the time being I set the other controller as the master and the feed button works like it should.

 

[rvitko]

Under the front panel a momentary switch is pushed when you push the key pad. Usually the cause will be the membrane is pushed down so the button cannot spring back, open the controller and check everything, the manual shows how, then when you reassemble don't overly tighten the screws so there is some space for it to spring back.