Daikin Compressor Overcurrent / Overload

Daikin system stops with E5; may be associated with compressor issues

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

Seized or mechanically failing compressor, Shorted compressor windings, Overcharged system, Faulty inverter IPM

Safety first: Compressor and inverter diagnostics involve lethal voltages. Only trained technicians should proceed.

Technician overview:

Measure compressor winding resistance and insulation resistance to ground.
Check current draw during startup and running; compare with nameplate.
Inspect refrigerant charge and system pressures.
Replace the compressor or inverter module as required following Daikin procedures.

Professional Required 5/5

Compressor Assembly

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