Never really used the grill and needed 2 more burners so I just pulled out the grill assembly and plugged in the burner assembly, added the new pan cover and new grates and viola, I had a four burner stove. Still can pop the grill back in if needed. Much less expensive than buying a whole new cooktop.
My husband threw a pot holder on the hot (not lit) burner grate.The potholder melted on the grate and we were not able to remove the melted fabric. We ordered a new grate and it looked so good we ordered three more. I am planning to replace the burners next. We'll have a brand new looking cooktop. The cooktop is 15 years old.
Replacing the side grill burners was easy--lift off the grill covers and pull out the grill burners. Next, attach the new front and rear burners to the burner plate with 2 screws (the older version uses 4 screws) using a nutdriver. Place the 2 burner unit (now joined) into the 2 gas inlets (no screws necessary--just slip them over the tubes). Insert the grill pan over the burners and place the 2 burner grates over each burner. Done!