Hello and welcome to JustAnswer!
Have you checked fuses?
Do you have a test light or voltmeter to do some electrical testing?
I have both. Electrical diagnosis is not truly my forte, but never to late to learn
It's nothing we can't get through together!
Before we start, have you checked fuses in the box under the hood to make sure you don't have a blown one?
If you've gone over the fuses a couple times already then you should be fine there.
Let's start by unplugging the fan connector. Connect the alligator clip of your test light to battery positive, then probe the black/dark green wires at the fans to see if the test light lights up.
will do now
You did get enough refrigerant in it to get the compressor to run didn't you?
Now move the test light alligator clip over to battery negative, start the van and turn the a/c on (if your compressor isn't able to run yet then let me know and we'll change how we do this). Probe the dark blue/dark green wires at the fans and see if the test light comes on after a minute or so.
That's good. If the compressor does come on then the fans should also come on within a minute or two of starting the engine with the a/c on.
I didn't know that.
So if you plug the connector back in now do the fans run? If not, the motors are bad. Try plugging it back in and see if they're working now.