Shop replacement repair parts for Nordyne Air Handler model B6BMM024K-A

Run capacitor, round, 7.5 MFD, 370 volts

Control board

1/5hp 3spd blower motor
Keep your Nordyne B6BMM024K-A air handler running reliably with genuine OEM replacement parts from Repair Clinic. The B6BMM024K-A is a two-ton, 13 SEER multi-position Nordyne air handler designed to pair with Nordyne-family heat pumps and air conditioners. Blower motor part number 622257R is the confirmed replacement for the B6BMM024K-A and the related B6BMM024K-B production revision. Because the B6BMM024K-A often pairs with a heat pump for year-round operation, its blower motor accumulates more annual hours than in a cooling-only application. Repair Clinic stocks genuine Nordyne OEM parts for the B6BMM024K-A including the Nordyne air handler blower motor parts, Nordyne air handler capacitor parts, and Nordyne air handler control board parts. Browse the Nordyne air handler parts catalog filtered by B6BMM024K-A for the complete parts inventory.
The Nordyne B6BMM024K-A uses blower motor 622257R, shared with the B6BMM024K-B production revision. This part number is one of the most important specifications to confirm before ordering, because other B6BMM tonnage configurations use different motor part numbers that are not interchangeable. The B6BMM024K-A supports multiple installation positions and includes an airflow selector switch that allows field adjustment of blower speed for different system capacity configurations and installation requirements.
The blower motor 622257R in the B6BMM024K-A circulates conditioned air through the duct system. A motor that runs slowly, produces grinding noise, or fails to start should have its run capacitor tested first, as a failed capacitor produces the same symptoms at a fraction of the motor replacement cost. The 622257R is confirmed for both the B6BMM024K-A and B6BMM024K-B production revisions.
The run capacitor provides the phase-shifted current that enables the PSC blower motor to start and maintain rated speed. A capacitor reading more than 10% below its rated microfarad value causes the motor to run hot at reduced airflow. In year-round heat pump applications, test the capacitor annually before the cooling season.
The B6BMM024K-A control board manages blower speed sequencing and safety switch monitoring. A board fault may present as incorrect blower speed in one operating mode or failure to advance the heating or cooling cycle normally. Confirm whether you have the A or B revision before ordering a replacement board, as programming may differ between the two revisions.
The limit switch prevents overheating by monitoring internal temperatures. A limit that trips consistently indicates an airflow restriction such as a clogged filter, clogged blower wheel, or closed supply registers. Address the airflow root cause before replacing the switch.
The B6BMM024K-A is a two-ton, 13 SEER multi-position Nordyne air handler. The 024 identifies 24,000 BTU two-ton capacity. This model pairs with Nordyne-family heat pumps and air conditioners in the same 13 SEER efficiency tier.
The B6BMM024K-A and B6BMM024K-B are successive production revisions of the same two-ton Nordyne air handler. Blower motor part number 622257R is shared between both revisions, as is the run capacitor. The control board may differ between the A and B revisions.
No airflow from the B6BMM024K-A is most commonly caused by a failed run capacitor preventing the blower motor from starting, a tripped circuit breaker, or a clogged filter restricting airflow enough to trip the limit switch. Check the filter and breaker before testing the capacitor.
The Nordyne B6BMM024K-A uses blower motor part number 622257R. This same motor is used in the B6BMM024K-B production revision. Always confirm the part number from the motor data label on the installed unit before ordering a replacement.

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