Kelvinator split AC displays E5 and does not cool; compressor may not start or stops quickly.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Switch off power at the breaker. High voltage and stored charge in capacitors can be dangerous.
User-level checks:
- Verify supply voltage: Ensure the AC is connected to the correct voltage circuit as per the nameplate (e.g., 220–240 V). Avoid using undersized extension cords.
- Check outdoor airflow: Clean the condenser coil and ensure the outdoor fan runs properly, as poor cooling can increase compressor current.
- Power reset: Turn off power for 10–15 minutes to allow internal protection to reset, then test again.
Technician-level checks (do not attempt if untrained):
- Measure compressor winding resistance and insulation.
- Check inverter PCB for burnt components or swollen capacitors.
- Measure running current and compare with nameplate values.
When to call a technician: Persistent E5 usually indicates a serious compressor or inverter PCB issue that requires professional diagnosis and may involve major component replacement.
Repair Difficulty
Required Part
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