LENNOX Error Code E5

If your Lennox air conditioner displays Error Code E5, it commonly indicates overcurrent protection or abnormal electrical load, often associated with the compressor. The unit may shut down to prevent electrical damage or overheating.

Symptoms include sudden shutdowns, failure to start, or tripping the power supply. Causes may include compressor strain, capacitor faults, fan issues increasing load, wiring problems, or unstable power supply.

Overcurrent faults should be inspected promptly, as repeated E5 errors may lead to expensive compressor damage over time.

✅ Hycool Air Conditioning Sydney can diagnose Lennox E5 faults safely and restore stable electrical operation. If E5 appears, call Hycool.