Troubleshooting My Philips stand garment steamer leaves wet spots on garments When your Philips stand garment steamer leaves wet spots on your clothes, there might be a simple solution. See how this works below. Steam condensation inside the head of the steamer It is normal to observe a few wet spots on the steamed clothes, especially when you have just started steaming. This is due to steam condensation inside the head of your garment steamer. Steam condensation (in case of using a mat or board): Wet spots can also be caused by steam condensation on the mat or board after a long steaming session (this is only applicable if you are using a board or a mat).