I had a PICO dressing put on a chest drain wound on Friday. When I went to bed at about midnight last night, the air leak light started flashing. We've tried all the trouble-shooting tips, but we can't sort it. My GP isn't open now til Wednesday - do I need to go down the road to hell that is 111/A&E or just disconnect the pump and leave it alone? The wound is dry and clean, just been refusing to heal from 2cm with Aquacel(?) and normal dressings.