Zane D Ocala , FL June 18, 2016 Appliance: Model WHIRLPOOL RF368LXPT Surface unit switch was no longer working properly burner would only work on high or off nothing in between Installed a new Surface Unit Switch I ordered from Appliance Parts Pros.com. If you can hook up speaker wires to your stereo you can change out this switch. Even though it is easy to do the part came with complete instructions which I did refer to make sure I did it right. Works just fine now. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes