Bosch NEXXT front-load washer error codes

Bosch

These error code explanations can help you diagnose a problem with your Bosch NEXXT washer. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for washing machines, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your washer.

Error Code
Condition
DIY advice
Er:01

Door is open

Check/Repair

Unplug the washer and reconnect any loose wires on the door lock assembly wire harness. Replace the wire harness if damaged. If the wire connections are okay, replace the door lock assembly.

Possible parts
Door lock assembly
Er:04

Door lock relay won't activate

Check/Repair

Unplug the washer for 3 minutes to reset the control module. If the code returns after you plug it back in, replace the control module.

Possible parts
Control module
Er:05 and Er:06

Water temperature sensor is defective

Check/Repair

Unplug the washer and reconnect any loose wires on the water temperature sensor (also called the negative temperature coefficient, or NTC). Replace the wire harness if damaged. If the wire connections are okay, replace the water temperature sensor.

Possible parts
Water temperature sensor (NTC)
Er:07

Unexpected heating (water heats up without the control module activating the heater)

Check/Repair

Unplug the washer and check the heater for visible damage. A damaged heater could be shorting out to the metal cabinet, causing the element to heat constantly. Replace the heater if damaged. If the heater is okay, replace the control module because the relay that controls the heater is likely stuck in the On position.

Possible parts
Heater, Control module
Er:08

Heating time exceeded (heater doesn't turn off)

Check/Repair

Unplug the washer and check the heater for visible damage. A damaged heater could be shorting out to the metal cabinet, causing the element to heat constantly. Replace the heater if damaged. If the heater is okay, replace the control module because the relay that controls the heater is likely stuck in the On position.

Possible parts
Heater, Control module
Er:09

No communication between control module and motor control module

Check/Repair

Unplug the washer and reconnect any loose wires on the control module and the motor control module. If the connections are okay, replace the wire harness. If the problem persists, replace the motor control module. In some cases, the main control module also must be replaced.

Possible parts
Wire harness, Motor control module, Control module
Er:11 and Er:12

Water fill time exceeded

Check/Repair

Make sure that both water supply valves behind the washer are fully open. In winter, check the fill lines for freezing. Check the drain system for a siphon problem. If the water inlet valve assembly is defective, replace it.

Possible parts
Water inlet valve assembly
Er:13

Drain time exceeded

Check/Repair

Remove any clogs from the house drain for the washer. Remove any clogs or kinks from the washer drain hose. Unplug the washer and check the large-item filter in the drain pump for a clog. If the drain pump is defective, replace it.

Possible parts
Drain pump
Er:14

Overfill level reached

Check/Repair

If the washer is not overfilled, the water level pressure switch is likely defective and will need to be replaced. If the washer is overfilled, shut off the water supply faucets behind the washer. The drain pump runs continuously when this code is displayed and should pump out the water. Unplug the washer and open the water supply valves. If the washer fills when the electrical power is disconnected, replace the water inlet valve assembly.

Possible parts
Water inlet valve assembly, Water level pressure switch
Er:17

Aquastop error

Check/Repair

The Aquastop float switch in the base of the washer cabinet trips if water leaks into the base of the washer cabinet. Unplug the washer and check for water in the base of the cabinet. If water is present, repair the source of the leaking. If the base of the cabinet is dry, check for a foreign object stuck under the float switch. If the Aquastop float switch is defective, replace it.

Possible parts
Aquastop float switch
Er:20

Spin cycle terminated

Check/Repair

Either the spin cycle ended because of a severely unbalanced load or communication was lost between the motor control module and the main control module. If the load was unbalanced, manually balance the load and remove some items to reduce the size of the load. If the washer still won't spin, unplug the washer and reconnect any loose wires on the control module and the motor control module. Replace the wire harness if damaged. If the wire harness connections are okay, replace the motor control module. If the problem persists, replace the control module.

Possible parts
Wire harness, Control module, Motor control module
Er:21

Excessive foam detected

Check/Repair

Use the proper amount of high-efficiency (HE) detergent in the washer. Most loads need only 1 tablespoon of HE detergent due to the reduced water level in this front-load washer.

Possible parts
HE detergent
Er:22

Electrical power supply problem

Check/Repair

Make sure the power cord for the washer is plugged in. If so, test the electrical outlet by plugging in a lamp or small appliance. If the electrical outlet doesn't work, have an electrician repair the outlet. If the outlet works, unplug the washer and reconnect any loose wires on the control module. If the power cord or outlet plug is damaged, replace it.

Possible parts
Electrical power cord
Er:25

Door lock is blocked

Check/Repair

The door lock coil overheated because of repeated attempts to lock or unlock the door. Check the door lock assembly for damage or a foreign object stuck in the locking mechanism. If the door lock assembly is damaged, replace it.

Possible parts
Door lock assembly

Symptoms common to all washers

Choose a symptom to see related washer repairs.

Main causes: clogged drain hose, house drain clogged, bad drain pump, water-level pressure switch failure, bad control board or timer
Main causes: bad lid switch or door lock, bad timer or electronic control board, wiring failure, bad water inlet valve assembly
Main causes: unbalanced load, loose spanner nut, worn drive block, broken shock absorber or suspension spring, debris in drain pump
Main causes: worn agitator dogs, bad clutch, broken motor coupler, shifter assembly failure, broken door lock, suspension component failure
Main causes: broken lid switch or lid lock, bad pressure switch, broken shifter assembly, faulty control system
Main causes: leaky water inlet valve, faulty water-level pressure switch, bad electronic control board
Main causes: lack of electrical power, wiring failure, bad power cord, electronic control board failure, bad user interface board
Main causes: water heater failure, bad water temperature switch, faulty control board, bad water valve, faulty water temperature sensor
Main causes: no water supply, bad water valves, water-level pressure switch failure, control system failure, bad door lock or lid switch

Articles and videos common to all washers

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