Bosch Washer Error Code E:08

E:08 means the washer's control system detected that the heating element was active at a point in the cycle when it should not have been. This indicates either a heater relay that is stuck closed and cannot cut power to the element, or a heating element that is conducting current outside of normal parameters. The machine stops to prevent damage from uncontrolled heating. Diagnosis should start with running test mode P16 to evaluate the heater and relay.

No, you should not continue using the washer while E:08 is active. An uncontrolled heating element can overheat the water, damage fabrics, or stress other internal components. The control system displays this fault specifically to halt operation and prevent further risk. The machine should remain out of service until the heater and relay have been inspected and the fault resolved.

A power reset may temporarily clear the E:08 code, but the fault will return if the underlying hardware problem is still present. Because this error is caused by a physical component issue such as a stuck relay or a faulty heater, resetting the machine does not address the root cause. If the code returns after a reset, the heater circuit needs to be properly diagnosed and repaired before the washer can operate reliably.

A knowledgeable DIYer can inspect wiring connections and run basic continuity checks on the heating element, but replacing a welded relay often means replacing the control board or power module, which requires careful disassembly and electrical safety precautions. If you are not comfortable working with line-voltage components inside a washing machine, this repair is best handled by a qualified technician. Running the built-in test P16 first can help narrow down whether the heater, relay, or wiring is at fault before ordering parts.

Repair costs depend on which component has failed. A heating element replacement typically falls in the range of $100 to $250 including parts and labor, while a control board or relay module replacement can range from $200 to $450 or more depending on the specific model and labor rates in your area. Getting a diagnostic assessment from a technician before committing to parts is a good way to avoid unnecessary expenses.