I have a dishwasher with model # 110.753890 and no parts catalogues seem to be able to locate such a model. It was purchsed in 1995 in Canada. Is it that parts are no longer available?

Our Kenmore ultra wash dishwasher will not drain?
It sounds like the pump is running, but water remains in the machine.
I have disconnected the pump out line and can blow air through it easily, it doesn't appear to be plugged.
Any ideas?