Does anyone out there have information about the Booster motor relay or access to a replacement part. My relay is not supplying power to the Booster motor on start up, Hall blower working fine. I’m guessing that an internal coil in the relay is not functioning. My relay has five terminals and is an SSAC, their part #Y2918. The wiring diagram located on the relay corresponds to the upper schematic in the service manual on page 34 indicating it is a slaved exhaust fan (not always 120v ac). Thanks for any info! barry