261
Moderate
Lennox · HVAC Systems (AC, Furnaces & Heat Pumps)
Blower Motor Fault
Quick Answer
Error code 261 on your Lennox HVAC Systems (AC, Furnaces & Heat Pumps) means: Blower Motor Fault. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Check for power at the blower motor connector during a call for heat or cool
2
For PSC motors, test the run capacitor with a capacitance meter
3
For ECM motors, check for 24V control signal and 240V power from the control board
4
Manually spin the blower wheel to check for binding or resistance
5
Lennox ECM motors may require proprietary diagnostics. A licensed HVAC technician should handle replacement
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Blower motor (PSC or ECM)
Run capacitor (PSC motors)
Motor mounting hardware
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