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Bosch Washing Machine Error Codes (Troubleshoot Like a Pro)

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How to interpret Bosh washing machine error codes so you can fix your washer today.

Nothing is worse than discovering that your VarioPerfect or Classix front load washing machine is suddenly giving you strange symbols and fault codes. You need help with Bosch washing machine troubleshooting. So today, we’re discussing how to read and interpret Bosch washer fault codes so you can troubleshoot and fix your washing machine.


How Do You Read a Bosch Washer Error Code?

If your Bosch washing machine has a digital display, then the fault codes will be clearly displayed on the screen. These codes include the letter E or the letter F and a two-digit number. These error codes can mean anything from the door did not latch properly to the heating element being faulty.

Older machines that do not include a digital display will use a system of flashing lights to show the error code. The error code is indicated by which lights are flashing.

Bosch Washer Error Codes

Here are some common Bosch washing machine error codes you may run into as you use your washing machine. These will help you with troubleshooting and fixing the problems.

E3

What It Means: Door lock error.

How to Fix It: The door of your washing machine did not close properly or the door lock is faulty. First, you will need to check to make sure nothing is preventing the door from closing correctly. Then clean the door lock sensors with a cotton swab dipped in rubbing alcohol. If this doesn’t work, you may need to replace the door lock mechanism.

F01

What It Means: The washing machine isn’t filling with water.

How To Fix It: Check the intake hoses and make sure that the hoses aren’t kinked or damaged. Make sure the intake valves are turned on. You will also need to check the intake screen to make sure it’s not dirty and preventing water from passing through it.

F02

What It Means: The heating component timed out.

How To Fix It: The water isn’t heating up because there’s a problem with your washing machine’s heating element. Check both the heating element and the wiring.

F03

What It Means: Your washing machine is taking too long to drain.

How To Fix It: Check the drainage hose to make sure it isn’t clogged. Also, make sure the drain pump doesn’t have a clog either. Otherwise, you may have a faulty pump that needs to be replaced.

F04

What It Means: Motor faulty: no tacho signal.

How To Fix It: Check the motor connector plug and wiring for signs of damage or corrosion.

F05

What It Means: The washer experienced uncontrolled motor startup or high resistance connections.

How To Fix It: The carbon brushes may be worn and need to be replaced. Also, check the motor wiring connections and the motor connector plug for signs of damage.

F06

What It Means: There’s an NTC short circuit.

How To Fix It: Check the sensor and connections in the NTC wiring to make sure everything is connected properly.

F07

What It Means: A faulty NTC circuit has been detected.

How To Fix It: Check the connections to the sensor and the board as they may have become loose. A technician may need to be called.

F08

What It Means: The door was open when the program attempted to start.

How To Fix It: You will need to close the door. If the door is shut, then you may need to dip a cotton swab in rubbing alcohol to clean the door sensors as they may be dirty. The door lock mechanism may also need to be replaced.

F09

What It Means: Your washing machine is heating up unexpectedly.

How To Fix It: This may be caused by a faulty thermostat. Check the wiring connections and the thermostat. The thermostat may need to be replaced if it’s faulty.

F10

What It Means: There has been a communication error.

How To Fix It: Check the wires for damage and corrosion that may be causing the communication failure.

F11

What It Means: Your heat sink or motor control PCB has overheated.

How To Fix It: This can lead to warping in the PCB layers. You will likely need a technician to repair your machine.

F12

What It Means: There is a short circuit or a faulty motor.

How To Fix It: Check for worn carbon brushes. Also, check the electrical connections in the motor. You may need to call a technician.

F13

What It Means: The mains voltage is too high.

How To Fix It: The voltage entering your washing machine is too high for the machine to handle without damage. You will need to call an electrician to check the voltage entering your machine.

F14

What It Means: The mains voltage is too low.

How To Fix It: The low voltage may cause the motor to stall and potentially burn out. Call an electrician to check the voltage entering your machine.

F15

What It Means: You have a faulty temperature sensor on the motor PCB.

How To Fix It: Check the connections of the temperature sensor. If needed, call a technician for servicing.

F16 or E16

What It Means: The door is open.

How To Fix It: Make sure nothing is blocking the washer’s door before closing it. If the door is closed and you’re receiving this error, it sometimes means that the locking mechanism is faulty and will need to be replaced.

F17 or E17

What It Means: Inlet valve issue.

How To Fix It: Make sure the water valves are fully turned on as your washing machine isn’t receiving the proper amount of water it needs to run a wash cycle.

F18 or E18

What It Means: Pump or drain timed out because the drain hose is blocked.

How To Fix It: Check the drain pump and drain hose for clogs and remove it. Also, make sure that the drain hose is installed correctly.

F19 or E19

What It Means: Heating time has been exceeded.

How To Fix It: Call a technician for support.

F20 or E20

What It Means: A heating fault was detected.

How To Fix It: Check the thermostat of your washing machine. You may need to replace the main control board.

E23 or F23

What It Means: Water was detected in the base trough because the appliance is leaking.

How To Fix It: Check the flood switch and make sure it’s not activated before checking your washer for leaks.

E27

What It Means: Malfunction of the pressure system.

How To Fix It: You will need to replace the pressure or level switch.

E28 or F28

What It Means: Flow sensor issue.

How To Fix It: Inspect the circuits and make sure the connections are secure. You may need to replace the flow meter.

F42, F43, F44

What It Means: Motor fault is indicated.

How To Fix It: Make sure nothing is stuck under the drum of your washing machine and your machine isn’t overloaded. Also, check the carbon brushes for wear. You will also need to inspect the motor connector plug and wiring for signs of wear and damage.

E56

What It Means: Unexpected communication error.

How To Fix It: Reset the washing machine by turning your washing machine off and then turning it on again. If you continue to receive this error code, you will need to call a technician.


How Do You Clear the Error Code on a Bosch Washing Machine?

Turn the dial of your washing machine to the off or reset position, which is normally at the 12 o’clock position. Next, turn your dial halfway or to the 6 o’clock position.

Press and hold the spin button while you turn your dial to the 7 o’clock position. Continue to hold the spin button for another 5 seconds before releasing it. Then turn the dial to the off or reset position at the 12 o’clock position.

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About the Author

Sara Dennis

Sara Dennis is a coffee-loving freelance writer, homeschool blogger, and mom of six kids. In her free time, Sara loves reading books and researching more efficient and effective ways to keep a clean house, homeschool her children, and blog better while making a home for her large family.