DIY Troubleshooting & Repair Guide for Whirlpool Range Low Heat Burner Issues

The user reports that the left burner on their Whirlpool electric range isn’t working on the low heat setting, a common issue often linked to the infinite switch or wiring. A detailed DIY troubleshooting and repair guide, either in video or illustrated PDF format, for this model (YWEE515S0LS2) or similar Whirlpool ranges, focusing on diagnosing and fixing burner heating issues (especially 'no low heat'), would be really helpful. This could save a lot of money on service calls and parts, and give users the confidence to fix their own appliances.