Emerson 50M58-289-03 Furnace Control Board 59-5043 REV. H

Emerson 50M58-289-03 Furnace Control Board | 59-5043 REV. H | Goodman Amana | Tested Condition: Used – Tested & Fully Functional Availability: Ready for Pickup / Fast Response Key Specifications Brand: Emerson Climate Technologies OEM Applications: Goodman Amana Part Number: 50M58-289-03 Board Number: 59-5043 REV. H Manufacturing Information: GP/N: PCBBF139S SP/N: 50M58-289-03 Firmware: 150-1912 Made in Mexico Control Type: Integrated Furnace Control (IFC) Application: Residential gas furnaces with multi-speed PSC blower motors. Thermostat Terminal Connections 9-Screw Low Voltage Terminal Block Terminal Function TWIN Furnace Twinning C 24V Common G Indoor Fan R 24V Power W2 Second Stage Heat W1 First Stage Heat Y First Stage Cooling YLO Low Stage Cooling US Auxiliary / Unused Terminal 120V Line Voltage & Accessory Connections Power Connections L1 (Line Voltage) XFMR (Transformer) Neutral Terminal Bank (5 Spade Connections) Accessory Outputs HUM (120V Humidifier) EAC-H (Electronic Air Cleaner) Blower Outputs CIRC-H (Circulator High Speed) Designed for multi-speed PSC blower motor applications. Harness Connectors 12-Pin (3×4) Molex Connector 5-Pin Horizontal Connector 6-Pin Vertical Connector (P1–P6) Major Components Microcontroller Microchip PIC16F1519-I/P Firmware: 150-1912 ZETTLER Power Relays Includes multiple OEM relays: AZ942H-1C-18DT(206) Coil: 18VDC Contacts: 12A @ 125VAC 7A @ 277VAC AZ942H-1C-24DT(205) Coil: 24VDC Contacts: 12A @ 125VAC 7A @ 277VAC Auxiliary Relay Omron Relay (G5Q Series – partially obscured) Used for auxiliary switching functions. Power Supply Three large electrolytic capacitors Integrated power conditioning circuit Fuse 3-Amp Purple Automotive Blade Fuse Provides board overcurrent protection. Diagnostics Flame Current Test Pins Dedicated diagnostic terminals: FLAME CURRENT Calibration: 1VDC = 1 µA Flame Current Allows quick flame sensor verification during troubleshooting. Compatibility Direct replacement for: Emerson 50M58-289-03 Board Number: 59-5043 REV. H Commonly installed in: Goodman gas furnaces Amana gas furnaces Compatible with systems featuring: Multi-speed PSC blower motors Single-stage and two-stage heating Furnace twinning 120V humidifier output Electronic air cleaner output ⚠️ Always verify before purchasing: Furnace model number Existing board part number Board revision (REV. H) Connector configuration Blower motor type Why Buy This Board? ✔️ Genuine Emerson OEM replacement board ✔️ Fully tested and ready to install ✔️ Supports furnace twinning applications ✔️ Includes humidifier and electronic air cleaner outputs ✔️ Reliable replacement for failed OEM control boards ✔️ Cost-effective alternative to buying new Pickup: Toronto / GTA