bexqavino
Aprilaire 4238 Circuit Board
$31.86
Secure checkout and delivery options are shown at checkout.
Circuit Board with wiring harness for whole house fan-powered humidifiers. Includes wiring harness. Replacement circuit board with transformer for many brands/models of whole house humidifiers. Same as Aprilaire 4238. Board includes relay and transformer that supply 115V to fan motor and 24V to solenoid when system humidistat switch calls.