Friedrich 67401405 Main Pcb Control Board

Product Description

The FRIEDRICH 67401405 is a main printed circuit board (PCB) designed as a direct replacement control board for compatible Friedrich PTAC and packaged terminal units. The PCB serves as the central control hub of the system, managing communication between the thermostat interface, compressor, fan motor, and auxiliary heating elements. Licensed HVAC technicians performing board-level diagnostics and replacements are the primary installers of this component. It is sold individually as a single unit.

This control board is specified for use with Friedrich model WFPU18Z483C, a packaged terminal air conditioner commonly found in hotel, motel, assisted living, and light commercial applications. When the existing board fails due to component damage, voltage surge, or age-related degradation, this OEM-style replacement restores full system operation without requiring unit-level replacement.

Key Features

• Direct-replacement main PCB for the specified Friedrich PTAC model
• Controls compressor, fan, and auxiliary heat functions
• Sold as a single unit for one-for-one swap installations
• OEM part number 67401405 ensures fitment accuracy

Compatibility

Designed for use with Friedrich model WFPU18Z483C.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect power to the unit at the circuit breaker and verify zero voltage at the board terminals before removing the existing PCB. Handle the replacement board carefully to avoid electrostatic discharge damage to components. Reassemble and restore power only after all wiring connections are secure and confirmed against the unit wiring diagram.

Technical Specifications

• Unit of Measure: Each

Standard Information

• Brand: FRIEDRICH
• Manufacturer Part Number: 67401405