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Lennox 39M84 Control Board, Blower

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Manufacturer:
Manufacturer #:
39M84
Parts Town #:
LEN39M84
Units:
Each
Fits Models:

Lennox 39M84 Genuine OEM Replacement Part

A Lennox 39M84 Control Board governs blower functions, maintaining consistent airflow and dependable performance when the HVAC unit is in operation.

  • Specifically designed for longevity, real OEM control boards support consistent blower operation and reduce strain that can shorten equipment life
  • Fits Popular Models: OF23Q2/3-70/90-06, OF23Q5-140/154-06, OF23Q3-105/120-06
  • Product Type: Control Board
  • Application: Blower

Common Questions and Answers

Why is the Lennox 39M84 Control Board important to the machine's performance?

The control board regulates blower operation by directing timing, speed and response signals that keep air moving properly through the heating and cooling unit. Its design matters because reliable circuit construction and precise control logic support consistent airflow, efficient system performance and coordinated operation with other furnace components.

What issues could signal that the Lennox 39M84 Control Board may be approaching failure?

The control board may be approaching failure if the HVAC system shows erratic blower cycling, delayed startup, inconsistent airflow or shutdowns that can disrupt normal heating performance. Physical signs can include scorched spots, a burnt odor or visible board damage, while environmental signs may include moisture exposure, dust buildup or vibration that could affect electrical reliability.

Read More FAQs

Does the Lennox 39M84 Control Board qualify for same-day shipping?

Absolutely! Parts Town offers same-day shipping on all in-stock real OEM heating and cooling parts Monday—Friday until 9 PM ET and on Saturday until 4 PM ET for online air orders. When you want to solve equipment issues in a timely manner, we're here to help.

Where do I go to see delivery updates for my Lennox 39M84 Control Board?

Track your real OEM HVAC parts once they've shipped by going to our Track My Order page and typing in your order number or purchase order (PO) number and zip code. By making it easy to stay informed, you'll have peace of mind that your order is on its way.

What customer support options are available for my Lennox 39M84 Control Board?

Parts Town has a wide range of customer support options for real OEM HVAC parts 8 AM to 9 PM ET Monday—Friday through chat, email, phone and more. Check our Contact Us page to see all the ways to reach us if you need help with an issue regarding your order.

What's the return policy for the Lennox 39M84 Control Board?

We provide the option to return most new, unopened real OEM HVAC replacement parts within 90 days of delivery, so head to our Returns page to see if your order qualifies. For parts that have been installed and no longer work, fill out the form in the Defective Parts & Warranty Inquiries section.

  • Length:
    7.5 in / 19.05 cm
  • Width:
    7.7 in / 19.56 cm
  • Height:
    1.8 in / 4.57 cm
  • Weight:
    Not Available