Anyone who owns the NGMP659UC lives with the heaviest grates Bosch fits. This Benchmark 36 inch gas cooktop has five sealed burners and 43,750 BTU, and its top is 37 inches wide, so each grate is large and weighs enough to crack stone if it lands on an edge.
Our advice is a habit, not a repair: lift each grate off onto a towel on the counter and clean it there, instead of carrying it across the kitchen. A dropped grate can damage the countertop or the floor, and it can hurt you. Over time the feet under the grates compress unevenly, and then a grate rocks.
The other thing to expect is the precision-machined metal knobs working with a simmer valve that, like others in this tier, can drift out of adjustment. On a visit we check that every grate sits flat, examine the feet, and test the low flame before suggesting a part.
Let it cool first, then rest it on a folded towel on the counter and never on a stone edge or the floor. Wash and dry it before setting it back so it sits level on its feet.
They can. If the rubber feet have compressed unevenly, or one is missing, the grate rocks even when it is straight. Check that all the feet are present and clean, and let us look if it still moves.
The simmer valve may have drifted from its setting. A technician can reset it and confirm that the flame holds at the lowest position without going out.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.