Larry G Longwood , FL November 20, 2015 Appliance: Maytag Electric Range MER6770AAW Maytag Range Mer6770aaw: The large burner was either off or stuck on maximum. How to replace Infinite Switch Top Burner Control Switch. Ordered a new Infinite switch on Monday, received it on Tuesday and installed it Tuesday evening. Installation was very easy even or an old man. The switch that I received was identical (Whirlpool) to the one that I replaced. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes