How to Read a Dryer Schematic

Assembly Schematic

• A dryer's assembly schematic is a visual representation of the dryer's various mechanical and electrical parts. This type of schematic usually takes the form of an exploded diagram, showing the dryer in a state of partial disassembly and transparency with all of its major components visible and labeled. To read this type of schematic orient the diagram so that it shows the dryer sitting on its base. Refer to the diagram's key and labels, as well as inset diagrams that show specific parts of the system.

Wiring Schematic

• The wiring schematic, or wiring diagram, for a clothes dryer shows how the electrical system is set up. Individual lines on the schematic are labeled to represent the power cord, which leads from a wall outlet to a junction inside the dryer housing, and internal wiring that branches off to the control panel and the blower and motor. Boxes that interrupt wires represent the locations and types of fuses in the dryer. An inset or line of text will note the dryer's power requirements. Unless you have special electrical skills, don't use a dryer wiring schematic to perform service or make changes that aren't outlined in the owner's manual.

Installation Schematic

• An installation schematic for a clothes dryer includes pictorial representations of the dryer's location within a home. It may either serve as a generic guide for installation or be a specific diagram for your home. In either case, the installation schematic indicates the placement and length of ductwork that ports hot, moist air from the dryer to an outdoor vent. Compare labels and measurements on the schematic to a blueprint of your home or measurements you make near the installation site. Use the schematic's labels to determine the type and length of flexible and rigid ducts to purchase.

Uses and Sources

• The ability to read each type of dryer schematic is useful in the right situation. Installation schematics help during installation and when diagnosing problems with dryer venting, which may result in clothes that remain wet. A wiring diagram can help diagnose electrical problems and serve as a guide for a service professional in diagnosing dryer failure. Assembly schematics are also useful for diagnosing general problems and ordering replacement parts for do-it-yourself repairs. Besides schematics that come in a dryer's owners manual, you may be able to find additional schematics on the manufacturer's website.