Checked the defost drain, it was not clogged. The condensor coil was iced up. The sensor for the defrost system was bad. Replaced it but the defrost system still did not work. Turned out the main pcb was bad, replaced the pcb and the defrost system started working. Still water under the crisper. Turned out the water reservoir had a pin hole leak. Replaced the reservoir and now no leaks. Never would have guessed three things were broken.