WS01F05938 GE Range Burner Valve 270 – The direct replacement for a GE gas range burner that won't light (no gas flow when knob is turned to "Lite"), won't adjust flame properly (flame stays high on low setting or stays weak on high setting), has a control knob that's stuck or extremely difficult to turn, leaks gas (smell of gas when burner is off), or has a knob that turns but the burner doesn't respond. The burner valve is the gas control valve behind each burner knob that regulates gas flow to the burner head. When you turn the knob, you're rotating the valve stem inside the valve body, opening or closing the gas passage and adjusting the flow rate. Over time, the internal seals, springs, and valve seat wear out from heat, grease buildup, and repeated use. A worn valve may stick (knob won't turn smoothly), leak (gas escapes even when the valve is closed), fail to open fully (weak flame on all settings), or fail to close fully (flame won't turn down or gas smell when off). If you've ruled out the igniter, burner cap alignment, and gas supply pressure, and the problem is isolated to one burner, the valve for that burner has likely failed. This genuine OEM GE part directly replaces WB21X20260. Fits GE, Hotpoint, and Kenmore gas ranges and cooktops. 20–40 minute DIY repair.