Fisher & Paykel Refrigerator Error Code INV-13

INV-13 means the inverter control board has detected an over current condition in the compressor circuit and has shut the compressor down as a protective measure. This fault points to excessive electrical current in the compressor drive system. The most common sources are shorted compressor windings, a seized compressor, damaged wiring, or a faulty inverter board.

A power reset may temporarily clear the fault and allow the compressor to attempt a restart, but if the underlying cause such as shorted windings or a damaged harness is still present, the INV-13 error will return quickly. Resetting without diagnosing and repairing the root cause will not resolve the problem and could allow repeated fault cycling that stresses other components.

Repair costs depend heavily on which component has failed. A wiring harness repair is typically the least expensive option, often ranging from $75 to $200 including labor. An inverter board replacement can range from $200 to $450 depending on parts and labor rates. Compressor replacement is the most costly outcome, generally ranging from $400 to $900 or more, and may warrant comparing the repair cost against the age and overall condition of the refrigerator.

Some basic checks, such as inspecting the wiring harness for visible damage or corrosion, can be performed by a knowledgeable DIYer. However, testing compressor winding resistance and diagnosing inverter board failures requires electrical meters and comfort working with high-voltage components. Most repairs that result from this fault, particularly compressor or inverter board replacement, are best handled by a qualified technician.

The over current protection that triggers INV-13 is a built-in safety feature designed to prevent overheating and potential damage to the compressor and inverter circuitry. While the refrigerator shutting down is not immediately dangerous, working on the compressor and inverter circuitry involves significant voltage and current levels. Always disconnect power completely before inspecting or testing components in this circuit.