To replace the condensate drain tube in a Viking VCFF036SS refrigerator, follow these steps:
1. Unplug the refrigerator from the power source.
2. Locate the condensate drain tube at the back of the refrigerator, typically near the bottom.
3. Remove any panels or covers obstructing access to the drain tube.
4. Carefully disconnect the old drain tube from the refrigerator's drain outlet.
5. If necessary, detach the other end of the drain tube from the drain pan.
6. Install the new drain tube by connecting it to the drain outlet and, if applicable, the drain pan.
7. Reassemble any panels or covers that were removed.
8. Plug the refrigerator back into the power source and ensure the new drain tube is properly installed by checking for leaks or drainage issues.