Ice cubes are NOT appropriate! You don't water a tropical plant like a Phalaenopsis orchid with ice! That information or claim is made solely to get you to buy the plant.
Please look through our Orchid Forum section and there you will find dozens of threads on Growing
Phalaenopsis! Read them from beginning to end. Read the questions, read the answers. There is just so much information there and it is not nonsensical gibberish about ice cubes.
Phalaenopsis need to be repotted every year, 2 at the most! The roots can not get enough oxygen to survive if the media breaks down,
Cut off the old bloom spikes completely. If you let it flower again before it gets healthy, you'll kill it!!
Once repotted it needs to be grown just bright, NO SUN AT ALL.
Make sure that the pot has adequate drainage holes. That pot that your orchid is in, while pretty, is increasing the chances that you kill your plant.
Once repotted into a regular clay or plastic pot, you water it once every three or four days. Use as small of a pot as possible. One in which the roots fit snugly into.
If you follow these instructions exactly, the plant will send out new roots in 4-6 weeks, 8 maximum. Good luck and keep us updated.