Bosch Washer Er:24 Names the Relay That Feeds the Motor Drive

What Er:24 means

The relay that sends power to the motor drive is what Er:24 points at. On Nexxt machines Bosch lists a motor power relay failure on the control module; on Vision machines, a relay feeding the inverter that is stuck, with a single fix, a new control. Either way the trouble is on the board and not in the motor.

Common causes of Er:24

Motor supply relay fused closed on the board
Relay burned open, leaving the drive without power
Board damage near the relay circuit

✓ One safe check you can try

1. Turn the washer off at the circuit breaker, not just at the buttons. 2. Leave it off until it has been looked at. 3. Mention whether the drum was spinning, humming or silent when the code appeared. A stuck relay can leave the circuit live even when the display looks dead.

! Why to stop there

A relay stuck closed leaves the motor drive live even when the washer looks off.
The board and the inverter are expensive to replace, so a wrong diagnosis is costly.
Poking at relay contacts can ruin the board.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Washer codes

dr:15Bosch Washer dr:15 Gives an Early Warning From the Power Limiter dr:19Bosch Washer dr:19 Shows That the Motor Phases Don't Match dr:20Bosch Washer dr:20 Signals a Shorted Inverter Output Stage dr:21Sustained High Voltage and Bosch Washer dr:21 dr:22Bosch Washer dr:22 Reports Failure of the Inverter's Own Temperature Sensor Er:22Er:22 on a Bosch Washer That Can't Lock On to the Power Supply Er:25Bosch Washer Er:25 When the Door Lock Coil Overheats E:36Bosch Washer E:36 and Drain Trouble on Newer Machines

Er:24Er:24 questions

Does Er:24 mean the motor is bad?

Not by itself. Bosch ties it to the relay on the control module, so the motor is usually fine. We test the relay and drive before recommending a new board.

Is it dangerous to leave the washer plugged in?

A stuck relay can leave the drive energized, so we advise switching it off at the breaker. Unplugging works too if you can reach the cord safely.

What does a repair cost?

It depends on whether the control or the inverter is replaced. We give you a written price before starting work, and our workmanship is covered for 30 days.