Could it be the batter that's causing them not to hold?
Can you post your recipe ?
I used a vegan recipe:1/2 C of cashews 1/2 C potted dates2-1/2 C water2 C oats1/2 tsp salt1 tsp vanilla
Are the waffles falling apart because they're sticking? If so, it could be because the batter has no fat, other than what occurs naturally in the cashews. Most waffle batters include fat (butter, oil, egg yolks, or a combination), which helps prevent sticking.
Make sure the surface of your wafflemaker is hot and well-oiled before adding the batter; if sticking remains a problem, try adding a few tablespoons of fat to the batter.
there is no binder here. whenever i have major problem like this, i google other 'vegan waffle' recipes and compare their ingredients and the ratios used of those ingredients.