Check out the water pump. The water pump module can be faulty, or the fuse can be blown. To determine if the pump unit is operational, you may carefully have it wired directly to electric outlet for a quick test. Look for the manuals how to do that. You need to dismantle the bottom side, and disconnect the current wiring. If the pump is faulty, ordering the replacement part may not pay off. If it is the fuse, you should be able to have it replaced fairly easily.