Bosch Dryer Error Code E:15

E:15 indicates a fault in the heating circuit, specifically that the dryer detected no temperature rise after a drying program was started. This points to a break somewhere in the heater circuit, such as a failed bimetal switch, a burned-out heating element, or a wiring issue. The dryer halts the cycle to prevent running without heat. Note that this code does not apply to Bosch dryers sold in the US or CN markets.

A power reset may temporarily clear the error code from the display, but if the underlying component has failed, the fault will return as soon as the dryer attempts to heat again. A permanent fix requires identifying and replacing the faulty component in the heating circuit. Resetting without repair is not a solution.

Repair costs depend on which component has failed. A replacement bimetal thermal cutout switch typically falls in a lower cost range, while a heating element replacement tends to cost more for both the part and labor. If the control board relay is at fault, board repair or replacement can bring the total cost significantly higher. Getting a diagnostic quote from a technician before committing to repairs is advisable.

A knowledgeable DIYer can diagnose and repair E:15 by testing the heating element and bimetal switches for continuity using a multimeter. If either component shows an open circuit, it can be replaced with the correct part. Wiring inspections require disconnecting power first, and if the control board relay is suspected, professional service is recommended due to the complexity of board-level diagnosis.

The dryer is not producing heat when E:15 is active, so running a cycle will not dry clothes effectively. The fault code indicates the heating circuit is broken, which means the dryer has already interrupted normal operation. You should not attempt to bypass the error and should have the heating circuit inspected before continued use.