Conrad H Portland , OR June 27, 2019 Appliance: Whirlpool Electric Range RF365PXYN2 Whirlpool Range Rf365pxyn2: Missing knobs corroded drip pans. How to replace Range Drip Pan. I ordered a replacement knob and replacement drip pans and replaced them myself. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes