Troubleshooting At Control Board; Mc4 Control Boards - Maytag MFR Series Service Manual

TROuBleSHOOTinG aT COnTROl BOaRD

Control Boards for MFR, MFX, and MFS washers may all look the same and have connections
marked on them that are not used by the product that you may be working on. Follow the wiring
diagram for the model being serviced to know what is connected and where. The following pages
will help identify the working connectors on MFR wahers.

MC4 COnTROl BOaRDS

Opl Control Board
D1 T1 A1 RS485 W1 F1 Z1 R1
B1 K1 TTL DL1 Fuse P1 M1
Y1
GA
Coin Control Board
D1 T1 A1 RS485 W1 F1 Z1 R1 L1
K1 DL1 Fuse P1 M1
GA
8-8