Fisher & Paykel Refrigerator Error Code INV-2

The INV-2 error code on a Fisher & Paykel refrigerator indicates a fault within the inverter module, specifically communicated by the inverter's onboard LED flashing twice in sequence. The inverter module is responsible for converting DC voltage to variable-frequency AC power to drive the variable-speed compressor. When the inverter's internal diagnostics detect an abnormal condition it cannot recover from, it signals the fault via the LED blink pattern and triggers this error code to alert the system.

The two-flash pattern from the inverter's LED is a self-reported fault, meaning the inverter module itself has detected an internal failure rather than a fault being detected externally by the main control board. This distinction matters because it points directly to the inverter as the source of the problem. Causes can include internal component failure within the inverter circuitry, overheating of the module due to poor ventilation or a blocked condenser, voltage irregularities reaching the inverter, or a compressor winding fault placing excessive load on the inverter until it shuts down.

Because the inverter module performs its own fault detection and reports INV-2 through its built-in LED, Fisher & Paykel's primary recommended action is direct replacement of the inverter module. Attempting to repair inverter circuitry at the component level is generally not practical in a field service context. Before replacing the module, it is worth confirming that power supply voltage is within acceptable range and that the compressor itself is not shorted, as a failed compressor can cause repeated inverter failures if the underlying load issue is not resolved first.