Bosch Dishwasher Error Code Er:10

Er:10 indicates that the flow meter is reporting values the control board considers incorrect or out of range. This code applies specifically to Bosch models WFMC64 and WFXD84. The flow meter measures how much water enters the machine, and when its signal is faulty or absent, the dishwasher stops operating to avoid fill-related problems. The cause is typically a defective flow meter or a wiring issue in the harness connecting it to the control board.

You should not attempt to run wash cycles while Er:10 is active. The error means the control board cannot accurately monitor water flow, which could lead to improper fill levels during operation. The dishwasher's control system halts normal operation when this code is present specifically to prevent those conditions.

If only the wire harness needs repair or a connector needs reseating, out-of-pocket costs may be minimal. A replacement flow meter part typically falls in the range of $30 to $80 depending on availability. If you hire a technician, expect total repair costs in the range of $100 to $250, which includes diagnostic time and labor.

Some causes of Er:10 are DIY-accessible, such as reseating a loose connector, inspecting the wire harness for visible damage, or cleaning debris from the flow meter. The first step is to run diagnostic test P:11 to evaluate the flow meter signal. If the harness and connectors check out and the meter is still producing bad readings, replacing the flow meter is the next step, which requires basic appliance disassembly skills.

A reset may temporarily clear the error display, but the code will return if the underlying problem is not repaired. The flow meter or wire harness fault that triggered Er:10 must be diagnosed and corrected for the error to stay resolved. Running test P:11 after any reset is the proper way to confirm whether the fault is still present.