
Heat Controller 803300301100 Circuit Board
The Heat Controller 803300301100 Printed Circuit Board is a critical OEM replacement control board engineered for high-performance Heat Controller and Comfort-Aire PTAC/PTHP units. This HVAC circuit board serves as the central command module, managing complex sequences of operation including compressor cycles, fan motor speeds, and reversing valve transitions. As a technician, you know that intermittent HVAC system failures are often traced back to faulty relays or logic errors on the main PCB. This genuine Heat Controller replacement part (also referenced as CMF803300301100) ensures precise communication between the thermostat and the unit's mechanical components, preventing erratic short cycling and unresponsive logic.
Designed for professional-grade reliability, the 803300301100 board features a direct-fit architecture to streamline field installation and reduce downtime. It is specifically compatible with a wide range of models, including the PTHP12F150ASC, PTAC12F150A, and PTHP15F130A series. By replacing a degraded board with this genuine HVAC control module, you maintain the original performance benchmarks of 24VAC control circuits while protecting sensitive components like the blower motor and compressor from voltage irregularities. When diagnostic LED patterns or burnt relay contacts indicate a failure, this original equipment part provides the exact timing sequences required for stable climate control.
Key Benefits for Contractors:
- Exact OEM Compatibility: Eliminates the guesswork associated with universal boards by providing a perfect fit for Heat Controller PTHP and PTAC units.
- Enhanced Logic Control: Restores factory-spec responsiveness to thermostat commands and internal safety limit switches.
- Industrial-Grade Construction: Built with robust solder joints and high-quality relays to withstand the thermal stress of continuous HVAC operation.
- Direct Replacement: Replaces part numbers 803300301100 and B0FSSSYS36 without requiring field modifications or wiring harness alterations.
Common Questions:
How do I know if my Heat Controller circuit board is failing?
Common indicators include the blower motor running continuously, the system failing to respond to thermostat inputs, or visible signs of heat damage and burnt traces on the PCB surface. Use internal LED diagnostic codes to confirm if the logic board has suffered a terminal failure.
Does this board work with both Heat Pump (PTHP) and Air Conditioner (PTAC) models?
Yes, the 803300301100 is compatible with various Comfort-Aire and Heat Controller series PTAC and PTHP models, managing the specific reversing valve logic required for heat pump operations.
Can I use this to replace a different branded controller?
This is an OEM-specific board. It is essential to match the part number 803300301100 or verify the specific model compatibility of your unit to ensure the pin connectors and voltage requirements align perfectly with your existing harness.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Heat Controller 803300301100 Circuit Board
The Heat Controller 803300301100 Printed Circuit Board is a critical OEM replacement control board engineered for high-performance Heat Controller and Comfort-Aire PTAC/PTHP units. This HVAC circuit board serves as the central command module, managing complex sequences of operation including compressor cycles, fan motor speeds, and reversing valve transitions. As a technician, you know that intermittent HVAC system failures are often traced back to faulty relays or logic errors on the main PCB. This genuine Heat Controller replacement part (also referenced as CMF803300301100) ensures precise communication between the thermostat and the unit's mechanical components, preventing erratic short cycling and unresponsive logic.
Designed for professional-grade reliability, the 803300301100 board features a direct-fit architecture to streamline field installation and reduce downtime. It is specifically compatible with a wide range of models, including the PTHP12F150ASC, PTAC12F150A, and PTHP15F130A series. By replacing a degraded board with this genuine HVAC control module, you maintain the original performance benchmarks of 24VAC control circuits while protecting sensitive components like the blower motor and compressor from voltage irregularities. When diagnostic LED patterns or burnt relay contacts indicate a failure, this original equipment part provides the exact timing sequences required for stable climate control.
Key Benefits for Contractors:
- Exact OEM Compatibility: Eliminates the guesswork associated with universal boards by providing a perfect fit for Heat Controller PTHP and PTAC units.
- Enhanced Logic Control: Restores factory-spec responsiveness to thermostat commands and internal safety limit switches.
- Industrial-Grade Construction: Built with robust solder joints and high-quality relays to withstand the thermal stress of continuous HVAC operation.
- Direct Replacement: Replaces part numbers 803300301100 and B0FSSSYS36 without requiring field modifications or wiring harness alterations.
Common Questions:
How do I know if my Heat Controller circuit board is failing?
Common indicators include the blower motor running continuously, the system failing to respond to thermostat inputs, or visible signs of heat damage and burnt traces on the PCB surface. Use internal LED diagnostic codes to confirm if the logic board has suffered a terminal failure.
Does this board work with both Heat Pump (PTHP) and Air Conditioner (PTAC) models?
Yes, the 803300301100 is compatible with various Comfort-Aire and Heat Controller series PTAC and PTHP models, managing the specific reversing valve logic required for heat pump operations.
Can I use this to replace a different branded controller?
This is an OEM-specific board. It is essential to match the part number 803300301100 or verify the specific model compatibility of your unit to ensure the pin connectors and voltage requirements align perfectly with your existing harness.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Heat Controller 803300301100 Printed Circuit Board is a critical OEM replacement control board engineered for high-performance Heat Controller and Comfort-Aire PTAC/PTHP units. This HVAC circuit board serves as the central command module, managing complex sequences of operation including compressor cycles, fan motor speeds, and reversing valve transitions. As a technician, you know that intermittent HVAC system failures are often traced back to faulty relays or logic errors on the main PCB. This genuine Heat Controller replacement part (also referenced as CMF803300301100) ensures precise communication between the thermostat and the unit's mechanical components, preventing erratic short cycling and unresponsive logic.
Designed for professional-grade reliability, the 803300301100 board features a direct-fit architecture to streamline field installation and reduce downtime. It is specifically compatible with a wide range of models, including the PTHP12F150ASC, PTAC12F150A, and PTHP15F130A series. By replacing a degraded board with this genuine HVAC control module, you maintain the original performance benchmarks of 24VAC control circuits while protecting sensitive components like the blower motor and compressor from voltage irregularities. When diagnostic LED patterns or burnt relay contacts indicate a failure, this original equipment part provides the exact timing sequences required for stable climate control.
Key Benefits for Contractors:
- Exact OEM Compatibility: Eliminates the guesswork associated with universal boards by providing a perfect fit for Heat Controller PTHP and PTAC units.
- Enhanced Logic Control: Restores factory-spec responsiveness to thermostat commands and internal safety limit switches.
- Industrial-Grade Construction: Built with robust solder joints and high-quality relays to withstand the thermal stress of continuous HVAC operation.
- Direct Replacement: Replaces part numbers 803300301100 and B0FSSSYS36 without requiring field modifications or wiring harness alterations.
Common Questions:
How do I know if my Heat Controller circuit board is failing?
Common indicators include the blower motor running continuously, the system failing to respond to thermostat inputs, or visible signs of heat damage and burnt traces on the PCB surface. Use internal LED diagnostic codes to confirm if the logic board has suffered a terminal failure.
Does this board work with both Heat Pump (PTHP) and Air Conditioner (PTAC) models?
Yes, the 803300301100 is compatible with various Comfort-Aire and Heat Controller series PTAC and PTHP models, managing the specific reversing valve logic required for heat pump operations.
Can I use this to replace a different branded controller?
This is an OEM-specific board. It is essential to match the part number 803300301100 or verify the specific model compatibility of your unit to ensure the pin connectors and voltage requirements align perfectly with your existing harness.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












