The Goodman B1141702 Control Center combines a 120V to 24V transformer and SPDT fan relay into a single OEM assembly, providing low-voltage control and fan operation management for Goodman and Amana HVAC systems. Designed for reliable furnace and air handler performance.

Cross-Reference

• Goodman B1141702
• B11417-02
• B11417 02

Direct OEM

Goodman B1141702

Compatible Brands

• Goodman
• Amana
• Janitrol

Application

Used in Goodman, Amana, and Janitrol furnaces and air handlers to provide:

• 120V to 24V low-voltage power conversion
• Blower fan relay control
• Thermostat circuit power supply
• Indoor fan switching functions

Related Components

• Transformer
• Fan Relay
• Integrated Furnace Control Board
• Contactor
• Sequencer
• Limit Switch
• Thermostat
• Blower Motor Capacitor

Technician Notes

The B1141702 integrates a 24-volt control transformer and SPDT relay into a compact control center. Failure of either component can result in blower operation issues or complete loss of 24V control power. Verify primary and secondary transformer voltage before condemning the assembly.

Common Symptoms of Failure

• No 24V control power
• Thermostat not energizing equipment
• Indoor blower will not start
• Fan runs continuously
• Intermittent blower operation
• No response to thermostat calls
• Relay chatter or buzzing
• Burned transformer odor or visible overheating

Installation Tips

1. Disconnect power before servicing.
2. Verify incoming 120V supply voltage.
3. Label all wires before removal.
4. Confirm 24V output after installation.
5. Inspect relay contacts for proper operation.
6. Match wiring to original factory configuration.
7. Test heat, cool, and fan modes after replacement.

Recommended Inspection Items

• Thermostat wiring
• Low-voltage fuse
• Blower motor amperage
• Transformer secondary voltage
• Relay contacts
• Furnace control board connections
• Wire terminals for heat damage
• Incoming line voltage
• Air filter condition