Fisher & Paykel Refrigerator Error Code INV-1

INV-1 indicates a fault has been detected in the inverter module, which is the component that controls the variable-speed compressor. The inverter's onboard LED flashes once to signal an internal error it cannot self-recover from. This fault will typically cause the compressor to stop running, resulting in a loss of cooling in both the refrigerator and freezer compartments.

No, it is not advisable to continue relying on the refrigerator while the INV-1 error is active. Since the inverter module controls the compressor, this fault typically means the unit is not cooling properly, which creates a food safety risk. Perishable items should be moved to an alternate storage location until the repair is completed.

A power reset may temporarily clear the displayed error code, but if the inverter module has a genuine internal fault, the INV-1 code will return once the refrigerator attempts to run the compressor again. Resetting the unit does not repair the underlying hardware fault, and the compressor will remain unable to operate normally until the inverter module is replaced.

Basic checks such as inspecting the power supply and wiring connections at the inverter can be done by a knowledgeable DIYer, but the likely fix is replacing the inverter module, which involves working with high-voltage components inside the refrigerator. This repair is best performed by a qualified technician who can safely handle the electrical components and confirm the correct diagnosis before replacing parts.

Repair costs will vary depending on parts pricing and labor rates in your area. The inverter module itself typically ranges from around $150 to $350 or more depending on the specific model, and labor charges for the diagnosis and replacement can add $100 to $200 or more. Getting a quote from a certified technician before proceeding is recommended.