Fisher & Paykel Dryer Error Code 105

Error code 105 means the main control board and the user interface board have lost communication with each other over the internal data bus. The dryer cannot operate normally without this link established. The fault is most often caused by a wiring or connector issue, though either board can also be the source of the problem.

A power reset by unplugging the dryer for several minutes may temporarily clear the error if it was triggered by a transient voltage irregularity or a firmware glitch. However, if a physical wiring fault or failed board is the root cause, the error will return as soon as the dryer attempts to re-establish communication. A reset alone is not a fix for a hardware fault.

If the fault is a loose connector, the repair cost may only involve a service call fee, typically in the range of $75 to $150 depending on your location. If a UI board or main control board requires replacement, parts alone can range from $100 to $300 or more per board, with total repair costs including labor often falling between $200 and $500. Getting a diagnosis before authorizing parts replacement helps avoid unnecessary expense.

A knowledgeable DIYer can inspect and reseat the wiring connectors between the control board and the UI board, which resolves the fault in some cases. However, if the issue lies with a failed board or a broken wire within a harness, the repair becomes more involved and requires comfort working with appliance electronics. If you are not confident working inside the dryer cabinet, a qualified technician is recommended.

No, the dryer should not be used while error code 105 is active. Because the control board and UI board cannot communicate, the dryer cannot reliably receive or execute commands, and normal safety monitoring may be compromised. The dryer should remain unplugged until the fault is diagnosed and repaired.