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SlickWillie - I'm thinking that when the switch is depressed it does two things. One, it actuates the selonoid that starts the electric motor (which is working fine) and, two it sets the direction of the impellers of the pump to coincide with either "extend" or "retract". That's where I'm thinking one possible problem is. Either the contact on the switch isn't working properly to signal the impeller direction correctly, or the trombetta selonoid isn't reacting to the signal. There's no indication that the room is stuck or binding. Sometimes the "retract" works properly after 2 or 3 tries on the switch. When it works it really works well. Sometimes it stutters - starts in, kicks back out a couple of inches, and then retracts properly. Like the impellers switch back and forth momentarily.
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