Carrier furnace code 41: Blower Motor Fault
Professional repair
What does code 41 mean on a Carrier furnace? On the two-stage variable-speed control, the blower failed to reach 250 RPM or failed to talk to the control within 30 seconds of being switched on (10 seconds during steady-state running). Official first checks, power off: a blower wheel rubbing the housing, a loose wheel on the motor shaft, and the wiring from the control to the motor. After that the flowchart is a voltmeter test at each plug that ends at the blower control module, the motor, or the furnace control.
Before you touch anything: the six signs that mean stop troubleshooting and call a pro →
115 V, 12 V and 5 V checks at PL3, PL13 and PL14 are technician work. Ask them to check the wheel and wiring before they quote a motor. DIY part cost: $400–800 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Blower wheel rubbing the housing or loose on the shaft (official first check) TECH
- Open wire or bad terminal between the furnace control and the motor (power leads or the RED, GREEN, YELLOW and BLUE signal wires) TECH
- Blower control module or ECM motor. The official flowchart replaces the module first and follows its instructions to decide whether the whole motor is needed TECH
- Furnace control (end of the flowchart) TECH
Parts referenced by this code
Always match parts against your model's parts list — part numbers vary within a series.
Questions about this code
What does code 41 mean on a Carrier furnace?
On the two-stage variable-speed control, the blower failed to reach 250 RPM or failed to talk to the control within 30 seconds of being switched on (10 seconds during steady-state running). Official first checks, power off: a blower wheel rubbing the housing, a loose wheel on the motor shaft, and the wiring from the control to the motor. After that the flowchart is a voltmeter test at each plug that ends at the blower control module, the motor, or the furnace control.
How do I fix Carrier furnace code 41?
Checks include the wheel, wiring, and voltage tests at the plugs, all technician work. Ask them to check the wheel and wiring before quoting a motor.
How much does it cost to fix Carrier furnace code 41?
Cost depends on where the diagnosis ends: a rubbing or loose wheel, a wiring fault, the blower control module, the motor, or the furnace control.
Applies to
58MVP (Series 170/180) · 58MVB · 58UVB
Different Carrier generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Verified against Carrier 58MVP/58MVB/58UVB Troubleshooting Guide (58-06T), p.8/26-27 — “BLOWER MOTOR FAULT – Indicates the blower failed to reach 250 RPM or the blower failed to communicate within the prescribed time limits. Thirty seconds after being turned ON or ten seconds during steady-state operation.”
Verified against Carrier 58MVB Service and Maintenance Instructions (58MVB-2SM), p.18 — “Turn power off and check the following items first before proceeding to the next step. - Rubbing blower wheel. - Loose blower wheel. - Wiring from furnace control to blower motor.”
Verified against Carrier 59MN7A Troubleshooting Guide (59MN7A-01T), p.9
Last verified 2026-09-05 · page updated 2026-10-03 · how we verify
Related Carrier furnace codes
These codes use the same status led — two-stage variable-speed (58mvp / 58mvb / 58uvb) system.