York Air Conditioner Error Codes

  York Central Controller Fault Codes: H3: Outdoor adding malfunction (valid for host unit) H2: Outdoor decreasing malfunction (valid for host unit) H1: Net communication malfunction EF: Other malfunction E4-T4: Temp. Sensor malfunction E3-T3: Temp. Sensor malfunction E2: Sensor malfunction E1-E0: Communication malfunction Phase sequence or lack of phase PF: Other Protection PE: Oil Balance … Continue reading York Air Conditioner Error Codes