If your York HVAC system is showing an error code, it’s important to know what it means and how to address it. This guide provides a comprehensive overview of York air conditioner and HVAC error codes, their meanings, and possible causes. Remember, while some minor issues can be resolved by homeowners, others may require professional assistance. Let’s dive into the details.

Common York Air Conditioning Error Codes

CODE: E0

  • Description: Indoor EEPROM (Electrically Erasable Programmable Read-Only Memory) error.
  • Possible Cause: Malfunction in the indoor unit’s memory chip. It may need resetting or replacement.

CODE: E1

  • Description: Indoor and outdoor unit communication malfunction.
  • Possible Cause: A disruption in communication between the units, often due to wiring issues or faulty components.

CODE: E3

  • Description: Indoor fan speed malfunction.
  • Possible Cause: Issues with the indoor fan motor or control board.

CODE: E4

  • Description: Indoor room temperature sensor error.
  • Possible Cause: Faulty room temperature sensor or wiring issues.

CODE: E5

  • Description: Evaporator coil temperature sensor error.
  • Possible Cause: Malfunction in the evaporator sensor, potentially requiring replacement.

CODE: EC

  • Description: Refrigerant leak detection system malfunction.
  • Possible Cause: Indicates a refrigerant leak or sensor issue. Professional service is recommended.

CODE: EE

  • Description: Water level alarm malfunction.
  • Possible Cause: Issues with the drain pan or water level sensor. Check for blockages or sensor faults.

CODE: E8 / E9

  • Description: Dual indoor unit or other twin model malfunction.
  • Possible Cause: Communication issues or faults within a twin indoor unit setup.

Outdoor Unit Error Codes

CODE: F0

  • Description: Overload protection.
  • Possible Cause: Compressor or system is under heavy load, possibly due to high refrigerant levels or poor airflow.

CODE: F1

  • Description: Outdoor temperature sensor error.
  • Possible Cause: Faulty sensor or wiring problems in the outdoor unit.

CODE: F2

  • Description: Outdoor condenser pipe sensor error.
  • Possible Cause: Issues with the sensor monitoring the condenser pipe temperature.

CODE: F3

  • Description: Discharge air temperature sensor error.
  • Possible Cause: Discharge temperature sensor malfunction or wiring fault.

CODE: F4

  • Description: Outdoor EEPROM error.
  • Possible Cause: Error in the outdoor unit’s memory chip, possibly requiring a reset or replacement.

CODE: F5

  • Description: Outdoor fan speed malfunction.
  • Possible Cause: Problems with the DC fan motor or control board in the outdoor unit.

CODE: F6 / F7 / F8 / F9

  • Description: Various sensor and communication errors related to the outdoor unit.
  • Possible Cause: Sensor malfunctions or communication faults between components. Professional diagnosis is recommended.

Protection and Safety Error Codes

CODE: P0

  • Description: Inverter module IPM protection.
  • Possible Cause: Inverter module issue, often caused by electrical problems or faulty components.

CODE: P1

  • Description: High/Low voltage protection.
  • Possible Cause: Voltage fluctuations outside the normal operating range. Check the power supply and connections.

CODE: P2

  • Description: Compressor overheating protection.
  • Possible Cause: High compressor temperature due to overloading or refrigerant issues.

CODE: P3

  • Description: Outdoor low temperature protection.
  • Possible Cause: Low outdoor temperatures causing system stress. Typically occurs in winter conditions.

CODE: P4

  • Description: Compressor drive error.
  • Possible Cause: Fault in the compressor’s drive system or control board.

CODE: P5 / P6 / P7

  • Description: Various protection modes for the compressor and system pressures.
  • Possible Cause: Issues with system pressures or compressor function. Professional evaluation is needed.

Central Controller and System-Wide Codes

CODE: H1 / H2 / H3

  • Description: Malfunctions related to network communication or outdoor unit adjustments.
  • Possible Cause: Network communication issues or configuration problems in multi-unit setups.

CODE: PF / PE / PD / PA

  • Description: Various system protection and oil balance codes.
  • Possible Cause: Protection against abnormal conditions or oil balance issues in larger systems.

CODE: E1 / E2 / E3 / E4

  • Description: Phase sequence or communication errors.
  • Possible Cause: Problems with phase sequence or communication between units, often due to wiring issues or incorrect setup.

Wall-Mounted Unit Error Codes

CODE: E7

  • Description: Communication fault between indoor and outdoor units.
  • Possible Cause: Disrupted communication, likely due to wiring or component issues.

CODE: F12 / F22 / F19

  • Description: Various protection and sensor errors specific to wall-mounted units.
  • Possible Cause: Sensor malfunctions or voltage protection triggers. Requires professional attention.

What Should You Do?

If you encounter any of these error codes on your York HVAC system, it’s important to first check for simple issues like power supply and settings. For complex problems or recurring error codes, professional assistance is recommended. At McCorry Comfort, our experienced technicians are here to diagnose and repair any issues, ensuring your system runs smoothly and efficiently.

Safety Note: Always prioritize safety when dealing with HVAC systems. If you're unsure or the issue seems complex, don’t hesitate to reach out for professional help. Handling electrical components or refrigerant can be dangerous without proper training and tools.

Need Help with Your York HVAC System?

Contact McCorry Comfort today for expert HVAC service and support. We’re here to help you keep your home comfortable and your system running efficiently, no matter the issue.