FieldBench
Carrier codes

Carrier

41

Lockout

Blower RPM out of band

Infinity VS motor not at commanded CFM.

Walk 41 in Diagnose

7 plates — walk the one on the cabinet

First check

1 Is the wheel free?

Spin the Carrier 59CU5 blower by hand. Ice, debris, or a seized bearing is not a control problem. Confirm the motor type on this plate — serial ECM, 9-speed tap, or X-13 — before you grab a capacitor. Confirm it is an 18-speed 59SC6 before you chase a VS model plug.

Expect: Wheel free. Correct motor family for this IFC.

The rest of the walkthrough is Diagnose.

On the plates

  • Static, wheel, harness, correct model plug, setup SW for AC tons / CF.
  • Confirm it is an 18-speed 59SC6 before you chase a VS model plug.
  • Static, wheel, harness, heat/cool taps or setup — not a 59TP6 plug chart.
  • Filter and coil first.
  • Static, wheel, serial harness, filter, coil.
  • Wrong indoor size in the Infinity setup = the motor cannot hit the requested CFM.
  • Do not ‘fix 41’ by swapping a 59TP6 model plug onto this IFC.
  • Static, wheel, serial harness, Infinity indoor size / CFM setup.

Plates that use 41

Same number, other makers

41 on Carrier is not the same code on these plates.