Air Handler Blower Motor Troubleshooting

Knowing how to troubleshoot and diagnose problems with these motors.

Air handler blower motor troubleshooting.

The blower motor plays an extremely important role in forced air systems. 5 signs that indicate a failing ac fan motor. The next most common problem that can occur with an air handler is a failure of a blower motor whether it be the blower motor or something else that causes the blower motor to fail it could be a bad relay control board run capacitor or the blower motor itself it could also be the blower wheel. The blower motor is not functioning.

Sometimes excessive dust can build up and cause the motor to burn out. These same diagnostics also aid in air conditioning blower assembly diagnosis when an a c blower continues running. Blowers in older furnaces generally employ single speed permanent split capacitor psc motors while many newer furnaces use variable speed electronically commutated motors ecms. Once the fan motor breaks down the ac will stop blowing cold air and that s something you don t want on a hot summer s day.

Without it the ac system will not be able to circulate any heated or cooled air. The air conditioning system indoor air handler units blower units or ahu s also called fan coil units including the air conditioner blower fan the indoor cooling coil or evaporator coil air conditioning system filters and the. This article describes what to check if the furnace or forced air blower fan does not stop when you expect it to do so. This is usually because an old filter has not been replaced.

How to inspect repair the indoor components of air conditioners and heat pumps. As explained in the hvac blower motor guide an air conditioner blower motor and assembly is basically the fan inside the air conditioning system that forces the cooled air via the ac cooling coil through the vents and into the room space that is being conditioned this makes the air conditioner blower motor assembly one of the most important parts of your air conditioning system. Our trane air handler troubleshooting guide reviews the most common air handler issues. As such you should make sure you get a good blower motor from a reliable air conditioning contractor that offers high quality products and installation services.

The blower motor is the component responsible for pushing air through the vents of your vehicle s heating and air conditioning systems. It s the trigger that circulates conditioned air throughout the home. A replacement blower motor is a substantial investment and plays an important role in creating a comfortable and healthy environment in your home. Contact a trane comfort specialist to set up a diagnostic visit.

The blower motor relay is the electrical switch that is used to supply the power for the vehicle s blower motor. Blower fan won t shut off.