17122000063094 Outdoor Inverter Control Board for KFR-35W/BP3N8

The 17122000063094 Outdoor Inverter Main Control Board is an authentic OEM replacement inverter drive module engineered for high-efficiency mini-split air conditioner and heat pump condensing units. Featuring advanced digital signal processing and robust power electronics, it delivers precise compressor frequency control, DC fan modulation, and comprehensive system diagnostics.

Quick Identification & Specifications

• Part Number: 17122000063094
• Board Code: KFR-35W/BP3N8-(TMS320F2800137+SLIM-L+6A181+TPD4204).D.13.WP2-1
• Silkscreen / PCB Marking: CX2 17122000063094 L1 (Revision: 23-12-14)
• Core Processor: Texas Instruments TMS320F2800137 32-bit DSP
• Power Stage: Integrated SLIM-L intelligent power module & TPD4204 driver
• Mounting & Housing: Factory pre-installed in rugged ABS chassis with heavy-duty aluminum heat sink

Common Symptoms This Board Resolves

• Outdoor unit fails to start or powers off unexpectedly under load
• Inverter communication faults and DC bus voltage error codes (e.g., P0, P4, E1)
• Compressor out-of-step, overcurrent, or fan motor stalling
• Visible component burn-out or electrical surge damage

Performance & Engineering Highlights

• Vector Inverter Control: High-performance 32-bit DSP processor ensures smooth variable-frequency operation, low operational vibration, and optimal seasonal energy efficiency (SEER).
• Industrial-Grade Thermal Design: Multi-fin extruded aluminum heatsink provides superior heat dissipation to protect power semiconductors during sustained peak-load operation.
• Comprehensive Transient Protection: Heavy toroidal choke, high-capacity filter capacitors, and transient voltage suppressors protect against line surges and harmonic distortion.
• 100% Plug-and-Play Fit: Exact OEM connector sockets ensure seamless connection to existing outdoor unit wire harnesses, thermistors, and expansion valves without modification.

Installation & Compatibility Notes

Please inspect your existing board to ensure that the part number 17122000063094 and full board code match. Always disconnect high-voltage power at the disconnect switch and allow capacitors to fully discharge before servicing HVAC equipment. Professional installation by a licensed HVAC technician is strongly recommended.