I am concerned because my 3-year-old son has started to stutter. Q: I am concerned because my 3-year-old son, who until recently had great language skills and talked really clearly, has started to stutter.
Intermitant motors should be replaced. From experience, relays and transformers rarely go out. It is usually the motor that burns out and it usually does so quickly when at life's end. Take the time to check all of your wire connections-hours can be spent diagnosing a vacuum only to find out it was a bad connection.ntermitant motors should be replaced. From experience, relays and transformers rarely go out. It is usually the motor that burns out and it usually does so quickly when at life's end. Take the time to check all of your wire connections-hours can be spent diagnosing a vacuum only to find out it was a bad connection.
Overheating is another issue that can cause a motor failure. Insulation breakdown, cycling and flexing, along with AC drive stress, round out the possible failure modes for this category. The life of the insulation in a standard electric motor is based on the temperature at which the motor operates.