A Lennox 28B97 Unit Controller manages key system functions, promoting coordinated performance and steady response within the equipment.
The unit controller manages and coordinates key operating commands within the heating and cooling unit, allowing major components to respond correctly to system inputs and operating conditions. Its control-board design matters because reliable circuitry and signal processing support accurate timing, stable communication and consistent performance throughout the HVAC system.
The unit controller may need to be replaced if the packaged unit shows erratic operation, missed commands, failure to start or shut down properly or inconsistent heating and cooling performance. Common indicators include visible burn marks, damaged connections, corrosion or moisture exposure and you might notice that power surges, vibration or prolonged environmental wear can affect how the part performs.
Definitely! We provide 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. Anything ordered afterward will be handled on the next business day. You can check the delivery status of your real OEM heating and cooling parts by heading to our Track My Order page and putting in your order number or purchase order (PO) number and zip code. With shipping updates always available, you'll have peace of mind that your order is on track. Definitely! We provide multiple ways to get assistance with your real OEM heating and cooling replacement parts 8 AM to 9 PM ET Monday through Friday with help through chat, email, phone and more. Visit our Contact Us page to see all the ways to reach us with your questions. Yes! Parts Town allows you to return most new, unopened real OEM HVAC parts within 90 days of delivery, so go to our Returns page for more information on the policy. If the part has already been installed and no longer works, please fill out the form in the Defective Parts & Warranty Inquiries section.Read More FAQs
Will my Lennox 28B97 Unit Controller ship the same day I order?
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Is the Lennox 28B97 Unit Controller eligible for returns?