
Rinnai Error Code E5
Common error codes

Error Code E5 – Electrical / Overcurrent Protection
If your Rinnai air conditioner shows Error Code E5, it often indicates overcurrent protection or abnormal electrical load, commonly tied to compressor strain.
✅ Hycool Air Conditioning Sydney can test and repair Rinnai E5 faults safely. If E5 appears, call Hycool now.