Category: York

Problem: No display on panel – unit will not start Possible Cause: Main supply to control system OFF. Emergency stop device off. CB3 tripped. No supply to – T2 No 24VAC supply to power board. No +12V output from powerboard. Action: Switch on main supply if safe to do so. Check if control panel emergency stop switch and

Error Code: E0 Cause: Indoor EEPROM (Electrically Erasable Programmable Read-Only Memory) error Error Code: E1 Cause: Indoor and outdoor unit communication malfunction Error Code: E3 Cause: Indoor fan speed malfunction Error Code: E4   Cause: Indoor room temperature sensor error Error Code: E5  Cause: Evaporator coil temperature sensor error Error Code: EC  Cause: Refrigerant leak

Malfunction and Protection Code Table. The display board in digital scroll system is just to display running conditions and  malfunction information. The manual button is just to check the address code and power code  of indoor units. Malfunction and Protection Code Table: Error Code: EF Contents: Other malfunction Error Code: EE Contents: Water level checking malfunction Error

Alarm Code: 01 Description: Compressor system 1 (compressors 1a, 1b) locked out on high pressure control. the circuit opened three times within a 2-hour window. Alarm Code: 02 Description: Compressor system 1 (compressors 1a, 1b) locked out on high pressure control. the circuit opened three times within a 2-hour window. Alarm Code: 03 Description: Compressor