A repair guide can help a homeowner repair a dryer that is not providing heat by helping identify which part is broken and needs to be replaced. A guide also typically provides step-by-step instructions on how to replace the part safely, and sometimes shows where to buy replacements.
Most Whirlpool dryers come with a wiring schematic that is used in repairs to check and replace wires. Most dryer heating problems are caused by a malfunctioning thermostat or an open heating element, and they typically need to be replaced to fix the problem. Many dryer heating problems can be identified by using a multimeter to check parts for continuity and replace malfunctioning parts.