Bosch Dryer Error Code E:0105

E:0105 indicates a door switch circuit error detected by the power unit control system. It is the 4-digit version of error E:36 and means the dryer cannot confirm a valid signal from the door switch circuit. The dryer will not run while this fault is active. The circuit includes the door switch, its wiring harness, and the connectors linking it to the control board.

No. The dryer is designed to stop and display this code specifically because it cannot confirm the door is securely closed. Running a dryer with an unconfirmed door position creates a safety risk, as the drum could operate with the door open. Do not attempt to bypass or ignore this error and instead diagnose the root cause before resuming use.

If the fix is simply reseating a loose connector, there may be no parts cost at all, though a service call to diagnose the issue typically runs between $75 and $150. Replacing the door switch itself is a relatively affordable repair, with parts generally ranging from $15 to $50 and total repair costs including labor falling in the $100 to $200 range. A control board replacement, if required, is significantly more expensive, often ranging from $200 to $400 or more depending on parts availability and labor rates in your area.

Some causes of E:0105, such as a loose connector or a harness that has come unplugged, can be resolved without special tools or replacement parts. However, replacing the door switch or diagnosing a control board fault requires basic electrical testing skills and comfort working inside the dryer cabinet. If you are not comfortable performing continuity tests or working around appliance wiring, a qualified technician is the safer choice.

A power reset by unplugging the dryer for a few minutes may temporarily clear the code if the fault was caused by a momentary signal glitch. However, if the underlying cause is a worn door switch, damaged wiring, or a loose connector, the error will return as soon as the dryer attempts to run a cycle. A reset should be treated as a first step in diagnosing, not as a fix.