Troubleshooting A Small Electric Motor That Fails

Motor has been running then fails to start.

Troubleshooting a small electric motor that fails.

A damaged or burnt out capacitor may hold only a fraction of the energy needed for the. A bad motor capacitor may cause starting problems or could shut off the motor while running. A motor placed in storage may or may not work regardless of its physical appearance. A quick check out can be done with a simple ohm meter but there s a lot more information to collect and weigh before actually putting it to use.

Hatfield vp of engineering and repair at heco all systems go goes over common types and causes of failures in electric motors at the 2016 reliabi. The motor s design may be capacitor start or capacitor run. Motor overloaded or jammed. Troubleshooting a small electric motor that fails is most effective when you follow a step by step procedure that rules out potential causes and helps isolate defective circuits or components.

Electric motors should be installed very carefully and should be looked after at regular intervals. If the capacitor has failed the symptom is that the motor won t start. The most common cause of hvac failure during the hot summer is a motor capacitor. Electric motor starting run capacitor troubleshooting faqs questions answers about electric motor start boost or run capacitors capacitors are electric devices that get an electric motor running at start up or that help keep a motor running once it has started.

These types of motors are what you will find in most home and workshop applications. Motor capacitors store electrical energy for the motor to use. This article describes a c electrical motor troubleshooting. Electric motor test repair guide.

If leaks are found the motor must be replaced. Most of the electric motor failures occur at the start up. Stator is shorted or went to ground motor will make a humming noise and the circuit breaker or fuse will trip check for leaks through the coils. Most of them are caused by the over heating of motor.

Here we provide an electric motor diagnostic table a troubleshooting guide that helps diagnose and repair most electric motor problems for motors found on hvac equipment in buildings such as air conditioners furnace or air handler blower fans oil burner motors well pumps and condensate return. When a motor fails it is often difficult to see why it failed just by looking at it. You may hear it humming or observe that it s getting hot. Special purpose industrial motors dc three phase will have some differences and i still know nothing about them.

Fuse or circuit breaker is tripped replace the fuse or reset the breaker.