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Blower Motor Resistor: Testing and Inspection

Inspection
Measure each terminal-to-terminal resistance on resistor.
If measured resistance is out of specification, replace blower motor resistor.

Blower motor resistor resistance
H-MH: approximately 0.4 Ohms at 25 °C (77 °F)
H-ML: approximately 1.1 Ohms at 25 °C (77 °F)
H-L: approximately 2.9 Ohms at 25 °C (77 °F)