Posts Tagged: blower speeds not working

How to Test a Blower Motor Like a Pro

How to Test a Blower Motor and Blower Motor Resistor Quick Summary Most blower failures fall into predictable patterns, and once you know the signs, you can avoid replacing good parts and get straight to the real fault. Here are the common failure issues: • Blower motor doesn’t run at all — A blown fuse, a faulty relay, an open circuit on either the power or ground side of the circuit, a burned-out blower motor resistor or transistor, or a variable speed controller can cause this. • The blower motor … Read More