Fisher & Paykel Refrigerator Error Code INV-5

INV-5 indicates an inverter module error, identified by the inverter's onboard LED flashing 5 times. The inverter module controls the variable-speed compressor, and this code means the module has detected an internal fault serious enough to stop normal operation. The refrigerator will not cool properly while this fault is active.

When INV-5 is active, the compressor is not running normally, meaning the refrigerator is not maintaining safe temperatures. Food safety is a concern if the fault persists for more than a few hours. It is best to transfer perishables to another refrigerator and have the fault repaired promptly.

A power reset may temporarily clear the displayed fault, but if the inverter module has a genuine internal fault, the INV-5 code will return once the refrigerator attempts to operate the compressor again. Resetting the unit does not repair the underlying hardware failure. Replacement of the inverter module is required for a lasting fix.

The recommended fix is replacement of the inverter module, which involves working with electrical components connected to mains power. While a knowledgeable DIYer can perform this repair, it requires proper electrical safety precautions and comfort working inside the refrigerator's sealed sections. If you are unsure, a qualified appliance technician should handle the replacement.

Repair costs will vary depending on your region and whether you use an authorized service technician or a third-party repairer. Parts and labor for an inverter module replacement typically fall in the range of $200 to $500, though prices can vary based on the specific model and local labor rates.