Air Handler Blower runs for 20 seconds then stops for 3 seconds

[JohnRoss]

Tempstar Air Handler FXM4X4800A1 Installed 09/2010.
New Tempstar Heat Pump installed at the same time.

A/C system controlled by Carrier Comfort Zone 4 Zone System installed in 1992.

When AC comes on the Air Handler Blower runs for about 20 seconds then stops for 3seconds then runs for about 20 seconds. This happens the entire time the system is running.

Otherwise the system is running fine & the house is cool. All three filters have been replaced.

[kdean1]

This looks like a situation for a service tech.
No answers here as it is not a DIY site.

[pacnw]

installer error, if new install.

if not new, then service call time.

[JohnRoss]

Tempstar Air Handler FXM4X4800A1 Installed 09/2010.
New Tempstar Heat Pump installed at the same time.

A/C system controlled by Carrier Comfort Zone 4 Zone System installed in 1992.

When AC comes on the Air Handler Blower runs for about 20 seconds then stops for 3seconds then runs for about 20 seconds. This happens the entire time the system is running.

Otherwise the system is running fine & the house is cool. All three filters have been replaced.

I just found a VERY Honest HVAC repair company that quickly diagnosed this problem today 04/29/13.

A component inside the X-13 blower assembly motor was bad. The technician told me Tempstar has had a lot of problems with the X-13 motor and he has replaced a lot of them.

AC is now up and running without shutting off every 20 seconds as it did before.