Air Conditioning Control/Computer Board — Part 1518981.D / 1457507.B

Replacement computer/control board for air conditioning systems. This board corresponds to part numbers 1518981.D and 1457507.B and is intended as the board part to swap into compatible AC units. Ideal for restoring control functionality when the original main board is faulty; exact-match replacement identified by 1518981.D / 1457507.B.