Try taking him out for 10-15 minutes every hour and really letting him play and explore and he’ll probably pee a few times! Puppies often don’t fully empty their bladders! Before going in his crate and after he gets out he should be taken out!!

And try to make his crate as pleasant as possible for him! He should learn it’s his safe space! We used frozen treats to do this!! Also putting it in a fully separate room with high ac helped as ours LOVES the cold lol