ComfortStar 17122000018658 – Indoor Control Circuit Board for Ductless Mini-Split Systems
The ComfortStar 17122000018658 indoor control circuit board is a factory replacement PCB designed for use in select ComfortStar ductless mini-split HVAC systems. It regulates internal system functions such as fan operation, thermistor inputs, signal communication, and relay switching. This control board ensures proper system logic and operational sequencing in indoor units.
This board is engineered to maintain compatibility with specific ComfortStar indoor evaporator models and should be replaced only with an OEM-matched component.
Product Features
Control Voltage: 24V low-voltage operation
Functionality: Coordinates evaporator fan, coil temperature sensors, and system communications
Design: Compact PCB layout for direct-fit replacement
Compatibility: Intended for ComfortStar mini-split indoor units – confirm model matching prior to installation
Mounting: Board mounting points aligned for original equipment configuration
Technical Specifications
Part Number: 17122000018658
Voltage: 24V
Application: Indoor evaporator unit control
Includes: Control board only – does not include housing or harnesses
Certifications: Compliant with manufacturer specifications
Installation Guidelines
This component should be installed by qualified HVAC technicians familiar with ComfortStar systems. Verify compatibility using the unit's technical documentation before replacement. Power must be disconnected prior to handling, and electrostatic discharge precautions should be followed during installation.
Applicable Use Cases
OEM replacement for non-functioning or damaged indoor control boards
Maintenance repair for ComfortStar mini-split systems experiencing communication or logic failure
Factory match part for system servicing and diagnostics