Bosch Dishwasher Error Code Er:08

Er:08 means the dishwasher detected that its heating cycle ran longer than the allowed time limit without shutting off. The control board stopped the cycle as a precaution. This points to either a heating element with a short to earth or a heater relay on the control board that is stuck in the closed position, keeping the heater energized.

No, you should not continue running the dishwasher while Er:08 is active. The error indicates the heater may not be shutting off correctly, which represents both an electrical and a potential overheating risk. The dishwasher should remain off until the heating element and control board relay have been properly inspected and any faulty components replaced.

Repair costs depend on which component has failed. Heating element replacement typically falls in the range of $80 to $200 including parts and labor. Control board replacement is more expensive, generally ranging from $200 to $400 or more depending on the specific model and local labor rates. Diagnosing the exact cause first will help avoid replacing the wrong component.

A knowledgeable DIYer can perform the initial diagnostic steps, which include disconnecting power and testing the heating element for a short to earth using a multimeter. If the element is faulty, replacing it is a manageable repair for someone comfortable working with appliances. If the control board relay is the cause, board replacement is more involved and some homeowners prefer to have a technician handle that work.

A reset may temporarily clear the displayed error, but the underlying hardware fault will remain. If the heating element is shorted to earth or the relay is stuck, the fault condition still exists and Er:08 will return the next time the machine attempts a heating cycle. Resetting without repairing the root cause is not a solution.