OEM Service Manual: Daikin Rebel Applied Air-Cooled Chiller Service Manual. Available through Daikin Applied technical support.
30 codes
| Fault Code | Alarm Description | Severity | Probable Causes | Action |
|---|---|---|---|---|
| E1 | High pressure protection | Critical | Condenser fouled | View Details → |
| E2 | Low pressure protection | Warning | Low refrigerant charge | View Details → |
| E3 | Compressor motor overload | Critical | Motor overload | View Details → |
| E4 | Discharge temperature high | Warning | High compression ratio | View Details → |
| E5 | Evaporator water flow fault | Warning | Pump stopped | View Details → |
| E6 | Inverter fault | Warning | Inverter power module failure | View Details → |
| E7 | Evaporator water temperature low | Warning | Setpoint too low | View Details → |
| E8 | Sensor fault | Warning | Sensor element failure | View Details → |
| E9 | Communication fault | Warning | Network cable fault | View Details → |
| E10 | Phase loss or reversal | Critical | Missing phase | View Details → |
| E11 | Overcurrent protection | Critical | Motor overload | View Details → |
| E12 | Oil pressure low | Critical | Oil pump failure | View Details → |
| E13 | Oil level low | Critical | Oil leak | View Details → |
| E14 | Expansion valve fault | Warning | Valve motor failure | View Details → |
| E15 | Power supply fault | Warning | Voltage outside spec | View Details → |
| E16 | Condenser fan motor overload | Critical | Fan motor bearing failure | View Details → |
| E17 | Condenser fan 2 fault | Warning | Fan 2 motor failure | View Details → |
| E18 | Compressor vibration alarm | Warning | Mounting bolts loose | View Details → |
| E19 | Pumpdown failure | Warning | Pumpdown solenoid not closing | View Details → |
| E20 | Compressor surge alarm | Warning | Operating near surge line | View Details → |
| E21 | High bearing temperature | Warning | Bearing lubrication inadequate | View Details → |
| E22 | Low subcooling alarm | Warning | Refrigerant charge low | View Details → |
| E23 | High superheat alarm | Warning | Expansion valve starving | View Details → |
| E24 | Compressor start inhibit | Warning | Safety interlock preventing start | View Details → |
| E25 | Evaporator approach temperature high | Warning | Fouled tubes | View Details → |
| E26 | Condenser approach temperature high | Warning | Fouled condenser | View Details → |
| E27 | Chiller staging error | Warning | Staging logic error | View Details → |
| E28 | Energy efficiency alarm | Warning | Operating below expected efficiency | View Details → |
| E29 | Compressor runtime exceeded | Warning | Compressor exceeded max runtime | View Details → |
| E30 | Refrigerant level alarm | Warning | Level sensor indicating low | View Details → |
Disclaimer: All Daikin Rebel fault code data is for reference only. Do not use this information to replace certified professional HVAC technician judgment. Always refer to original OEM official service manual.