Bosch Dryer Error Code E:8031

E:8031 on a Bosch dryer indicates a door sensor or door switch fault. It is the 4-digit equivalent of error code E:16 and means the control board detected an unexpected door-open signal during operation, or the door switch is defective. The dryer will stop running until the fault is diagnosed and corrected.

A reset may temporarily clear the code, but if the underlying fault with the door switch or its wiring has not been addressed, the error will return once a new cycle begins. The root cause needs to be identified and corrected before the dryer will operate reliably without retriggering the fault.

If the fix involves only reseating a loose connector, there is no parts cost involved, and a service call charge would be the primary expense. Replacing a door switch typically involves a parts cost in the range of $15 to $60 depending on the specific component, plus labor if a technician performs the repair. Full diagnosis is recommended before purchasing parts.

In many cases, yes. Start by checking all electrical connections at the door switch for looseness or corrosion, as a poor connection is the most common cause. If connections are secure, testing the door switch with a multimeter for proper continuity is the next step, and replacing a faulty switch is a straightforward repair for someone comfortable working with appliance wiring.

No. The dryer halts operation when this code appears because the control board cannot confirm the door is securely closed. Running a dryer with a faulty door switch is a safety risk, as the door could potentially open during a cycle. The fault should be diagnosed and repaired before resuming normal use.