The VCMA-20ULS pump is not shutting off

As mentioned, check for a slight tilt to the outside. If you still have issues, maybe the easiest option would be to set a condensate pump under it with the discharge hose going out the window. Fully automatic.
Little Giant VCMA-15ULST 115 Volt, 65 GPH, 1/50 HP Automatic Condensate Removal Pump with Safety Switch and Tubing, Black/White, 554415 https://a.co/d/fwA6Gzn

Call the manufacturer.

wired incorrectly. Reverse poliary

You system had been overcharged

yes you can

The a/c noise is either the clutch going bad and slipping which is very common on the V10. When its slips its not pumping, a clutch kit can be bought at any parts house for around $45-$50.00. About 30 minutes to put on. The other is a pump bearing going bad, which isn't a quick fix and needs the whole pump replaced, if that's the case always replace a new dryer when replacing the pump,, I would put money on the clutch...

new pump

Hi,
The float switch went bad... probably because of the water...you could replace it, but the parts are hard to get and with the time involved it will be easier and cheaper to replace it...

heatman101

Hi,
Either the float is stuck or the pump is stuck...
To release the float a good shot to the side of the pump is all that it will take....
If that does not work then a few screws and the top will come off.. the pump is a very simple spinner.. make sure ther is nothing jammed in there...
if that all checks out replace the unit, the motor is shot....
you should be able to find a new one at a HVAC supply house for around fifty bucks...or check www,grainger.com for a replacement condensate pump.

heatman101

your best bet is to get a replacement pump this is a common problem with this model