My Kreepy Krauly won't move. I've checked the hose for holes and also replaced the vinyl suction cup on the bottom but it won't budge. Doesn't appear that there is much suction. Could it be something clogging up the line in the pool equipment?

Yes, it could. Check the filter and pump for debris. This could severely restrict movement in these pool cleaners. Also, check the flaps of the Kreepy Krauly for debris. Also, check to make sure that the main drain and ALL suction lines, except the one the cleaner is attached to, are closed. This might also be why you have a lack of suction. My final suggestions would be to check the return line water flow and make sure that it is strong enough.

I will suggest you to check for debris on the filter and pump. In these pool cleaners, this could severely restrict movement. Check the Kreepy Krauly flaps for debris as well. Make sure the main drain and ALL suction lines are also tested.
Second, check the warranty date or maybe can claim for the warranty.
Final Solution is to replace a new quality pool cleaner such as Dolphin wave 300xl.
https://www.pooltronics.com.au/wave-300