E6
York
Compressor or Outdoor Motor Overload / Current Protection
York inverter AC shows E6 and compressor does not run or runs briefly then stops
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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.
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Possible Causes
Locked or tight compressor, Shorted compressor windings, Failing inverter module, Incorrect supply voltage
How to Fix / Troubleshooting
Safety: High voltage and stored energy are present in inverter boards. Disconnect power at the main breaker and wait several minutes before touching components.
- Check supply voltage: Have a qualified person verify that line voltage at the York outdoor unit matches the nameplate rating and is not sagging under load.
- Inspect wiring and terminals: With power off, tighten all compressor and contactor/inverter terminals. Look for burned or discolored wires.
- Listen for compressor start attempts: Brief humming followed by shutdown may indicate a locked rotor or failing inverter.
- Do not bypass protections: Never jumper overloads or safety devices to force the compressor on.
- Call a technician: A pro must megger‑test the compressor windings, check inverter output, and determine whether the compressor or outdoor PCB needs replacement.
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Repair Difficulty
Professional Required
5/5
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