An Airquest 1203398 Control Board regulates key electrical functions for stable performance and coordinated response in the system.
The control board manages control signals and coordinates key operating functions so the HVAC system can start, monitor and regulate performance correctly. Its design matters because accurate signal handling and board construction support reliable communication between components in heating and cooling equipment.
The control board may need to be replaced if the heating and cooling unit shows erratic cycling, failure to start or inconsistent responses to thermostat commands. Physical signs can include visible scorch marks or corrosion and environmental signs may include damage after moisture exposure, power surges or prolonged electrical stress.
We offer same-day shipping on in-stock real OEM HVAC replacement parts Monday—Friday until 9 PM ET, as well as on Saturday until 4 PM ET for online air orders. If you place an order after that time, we'll process it the next business day.
Of course! You can view shipping details on your real OEM HVAC parts by visiting our Track My Order page and entering your order number or purchase order (PO) number and zip code. This info is accessible 24/7, so it's easy to stay up to date on the delivery status of your order once it ships.
Of course! Customer assistance for your real OEM HVAC parts is available 8 AM—9 PM ET Monday—Friday via chat, email, phone and more. Visit our Contact Us page for a full list of ways to reach us.
Yes! Parts Town allows you to return most new, unopened real OEM HVAC parts within 90 days of delivery, so visit our Returns page for more details. If the part has already been installed and no longer works, please fill out the form in the Defective Parts & Warranty Inquiries section.