I have two radios with the same problem. The trim buttons will not move the trim one way, part of the time. Example, Throttle on one will idle up but won't idle down unless you keep messing with it. The two radios are a T7CAP and a T10CAG. They appear to be the same switch. I think the switch is bad and can put it in my-self if I could get one,or two in my case. Are they available?