Add all the ingredients to the Instant Pot (pressure cooker).
16 oz dry white navy beans, 1 leftover ham bone, 2-3 cups diced ham meat, 4 cups chicken broth, 2 cups water, 2 large red potatoes, peeled and chopped, 4 carrots, peeled and chopped, 4 celery stalks, chopped, 1 onion, diced, 1/2 teaspoon black pepper, 2 bay leaves
Lock the lid and set the vent to closed. Select MANUAL mode and cook on HIGH pressure for 1 hour 15 minutes.
When the soup is done (after the pressure is released and it is safe to open the lid), remove the ham bone and bay leaves.
Taste and season the soup with salt and black pepper, if needed. The soup will thicken as it cools.
Store cooled leftovers in an airtight container in the fridge for up to 4 days.
Notes
Crockpot Instructions: Add all ingredients to a 5 quart crockpot (add enough water to cover the beans, possibly more than 2 cups). Cook on HIGH for 6 hours. When done, remove the ham bone and bay leaves. Taste and season with salt and black pepper, if needed.