| Genuine Aprilaire 4238 Circuit Board |
 Replacement circuit board for whole house humidifier. This circuit board is located inside the humidifier and controls the small fan motor located in the fan powered humidifier. Specifications: -For Model 700, 760, 760A, 768. -Includes wiring harness. The circuit board also includes a relay and transformer that supply 115V to a fan motor and 24V to solenoid when needed. Related Products: Aprilaire 4040 24 Volt Solenoid Valve Aprilaire 700A Humidifier Aprilaire 700M Humidifier Price: 49.99 |