Are you talking about the leaves drying out or the flowers? If its the flowers, not so bad, but if its the leaves, then you need to take it out of its pot and check the roots. It's possible they started to rot and need to dry out and be repotted. Either way, you have a bit of a problem, as leaving it as you got it is very likely to damage the roots and the plant and repotting it will also damage the roots (they have grown to the conditions the plant has grown in and it will have to grow new roots). Still, personally I would take it out of its pot, check the roots, let it dry out and repot it. The roots need air as well as moisture - you've been doing well not over watering it sounds like. It's also possible you got water in the crown when you watered it and started a crown rot - that's pretty much the end of it, it will rot from the top leaves down. If the roots go bad, it will rot from the bottom up.
If its in sphagnum moss, I'd probably add some into coarse orchid bark and pot it up in that. Pick your pot on the viable root mass, not the current pot size. I'd also be sure to get a seaweed based root stimulant and put some of that in the water you soak the new media in before you pot it. Also use some (follow directions) in your water for the first few times you water it after repotting. I've had great results getting new roots that way on my Phals. If you have high humidity, you might skip sphagnum moss in your pot entirely, I have dry conditions and use it to help keep moisture at the roots.
Then keep the plant in low stress environment, not too bright. Also Phals like warm roots, so keep that in mind too. Water when its dry, it should dry out quicker than it was depending on what it is currently potted in.
You don't have to be in a big hurry to get it into a pot after you take it out, a couple of days or even longer is fine. If it sits on a counter for several days, you might want to run some water over the roots though. I would also try to post pictures, that will improve the advice you get a lot and I'd wait a couple of days at least to get more than one person's ideas. Better not to jump right in and cut things off or whatever until you read a few things and we get a picture to see what's going on. It should be ok to take it out of the pot to examine it though and post pictures of what you find.