Air Handler Fan Not Running

A capacitor may be used to start the fan and keep it running as in a start run capacitor.

Air handler fan not running.

If your blower fan is continuing to run after the system has already turned off and you made sure your thermostat isn t set to the on position then you ll want to try and pinpoint the issue. Air conditioner is turned off but fan keeps running. If the fan isn t working that can cause the coil to freeze. It s located on the side of the building near the outdoor a c unit.

Your system probably has a manual fan on switch on the thermostat or if not there may be a fan on push pull switch right on the fan limit switch in the air handler. If the coil froze the fan could be working but the air wont go through the ice until it melts. Do not proceed if you re not sure you ve properly shut off the power. With a typical split system central air conditioner the condensing unit sits outside your home and includes the outdoor coil the compressor the condenser fan and its electronic controls.

No cooling or inadequate cooling. If you can make the blower run then we know the problem is not with the blower motor or drive belt or assembly and we d go to step two. When your air conditioner s outside fan is not working inspect the fan itself. Less frequent starts and stops of the fan can reduce the stress from startup and potentially help extend it s lifespan.

Remove the service panel on the a c unit. Pros to running fan on air conditioner continuously. Even if it s not a heat pump some equipment still use belt driven. Shut off the power supply to the air conditioner at the disconnect or breaker panel.

Listed below are the 3 most common reasons why the blower fan continues to run after the. Find the start capacitor for the fan. After an extended period of time you fan can break or stop working. Capacitors store up the energy that powers the air conditioner s fans.

If the coil is frozen shut off the air conditioning immediately. Keeping the fan on creates a more even distribution of heating and cooling circulating the air if you have cold or hot spots in your house like a bedroom above a garage. It s time to troubleshoot an air conditioner for a faulty or broken condensing unit when you notice issues like. Some units also have dual capacitors that power you air conditioner s fans as well as your compressor.

The latest in heating ventilation air conditioner systems 4 reasons why ac compressor not working but fan is running 4 reasons why ac compressor not working but fan is running october 4 2019 articles blog palm beach county troubleshooting 5 comments. When an outside fan fails the most likely cause is a capacitor issue.