Fisher & Paykel Refrigerator Error Code 105

Error code 105 indicates a communications fault between three internal electronic modules: the cabinet module, the display module or user interface, and the power/control module. The breakdown in communication can originate from any of these modules or from the wiring harness that connects them. The refrigerator logs this code when the modules cannot reliably exchange data with each other.

Start by replacing the display module or user interface, then restore power and wait 30 seconds before retesting. If the code persists, inspect all wiring harness connectors between the three modules for looseness or corrosion. If the harness is intact, the cabinet module or power/control module may need to be tested and replaced. Because this fault can involve multiple components, systematic elimination is the most reliable approach.

Repair costs depend on which component is at fault. Display module or user interface replacements are typically the least expensive part of this repair, while the cabinet module or power/control module can be more costly. Including labor, total repair costs generally range from around $150 to $400 or more depending on the part required and local service rates.

A power reset may temporarily clear the display, but if there is an underlying hardware fault in one of the modules or a wiring issue, the code will return. The correct approach is to replace the display module, restore power, and wait at least 30 seconds before checking whether the code has cleared. A reset alone is not a fix for a genuine communications fault.

A communications fault between control modules can affect the refrigerator's ability to regulate temperature properly, which puts food safety at risk. While the unit may continue to run in the short term, you cannot fully rely on temperature control until the fault is resolved. It is best to address the error promptly and monitor food temperatures closely in the meantime.