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• 8620-238 OBSOLETE

• MV4000 Board Replacement Kit

Bard part 8620-238 is an OEM MV4000 board replacement kit used in Bard MV4000 series solid state dual unit lead and lag control applications commonly paired with Bard H-Series wall mount air conditioners. When the controller is not sequencing stages correctly, not alternating lead and lag, or showing intermittent operation, replacing the MV4000 control board can restore stable system control, proper staging logic, and dependable changeover between units. As a genuine Bard replacement, 8620-238 is intended to match the original controller functionality and wiring layout so service techs can return the equipment to factory control behavior, but you should still confirm compatibility by controller model and jobsite wiring before ordering.