Bosch NEXXT front-load washer error codes:

Reference Model: Bosch NEXXT front-load washer

Picture help - Bosch NEXXT front-load washer: bosch washer

These error code explanations can help you diagnose a problem with your Bosch NEXXT washer.


Code Meaning Possible Cause Possible Parts
Er:01 Door is open 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 Door lock assembly
Er:04 Door lock relay won't activate 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 Control module
Er:05 & Er:06 Water temperature sensor is defective 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 Water temperature sensor - NTC
Er:07 Unexpected heating - water heats up without the control module activating the heater 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 Heater, Control module
Er:08 Heating time exceeded - heater doesn't turn off 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 Heater, Control module
Er:09 No communication between control module and motor control module 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 Wire harness, Motor control module, Control module
Er:11 & Er:12 Water fill time exceeded 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 Water inlet valve assembly
Er:13 Drain time exceeded 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 Drain pump
Er:14 Overfill level reached 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 Water inlet valve assembly, Water level pressure switch
Er:17 Aquastop error 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 Aquastop float switch
Er:20 Spin cycle terminated 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 Wire harness, Control module, Motor control module
Er:21 Excessive foam detected 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 HE detergent
Er:22 Electrical power supply problem 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 Electrical power cord
Er:25 Door lock is blocked 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 Door lock assembly

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