Please do take care to read the information thoroughly as it is there to help you understand fault codes and to keep you safe. There are also some help, tips and hints with a lot of the fault codes published here that you usually will not find anywhere else and, as we learn, we add more information so if you can't find what you need please ask in the forums.
Before using this section please understand that fault or error codes are used as a diagnostic aid, they are not a replacement for diagnostic skill on the part of the person repairing the product and are not in any way usually going to point to the precise component that is faulty. All they do is give you an idea of where to start looking for the fault.
Bosch Washing Machine Error Codes
These error code explanations can help you diagnose a problem with your Bosch Washing Machines.
North London Appliances Repair forums
We add more information as we learn so if you can't find what you need please ask in the Repair forums.
- Error codes for Bosch Logixx Washing machines
- Error codes for Bosch Washing Machine NEXXT Models
- Error codes for Bosch WFP Range Washing Machine
- Error codes for Bosch Washing Machines With Honeycomb Drum
- Error codes for Bosch Washer dryer
- Error codes for Bosch Integrated Washer Dryer
F01
Inlet Valve
- Issue:
- Bosch Washing Machine Error Code F01 - If your washing machine is displaying either an F01 error code on the digital display panel, the most likely cause for this would be due to a faulty inlet valve.
- Advice:
- If the water supply is turned on and the hose pipe is not kinked the problem may be due to a faulty inlet valve. Check the inlet valve with a multimeter to confirm continuity - typically 2000 to 4000 Ohms.
F02
Heater
- Issue:
- Bosch Washing Machine Error Code F02 - If your washing machine has suddenly displayed an F02 error code, it’s mostly due to a defective heater.
- Advice:
- Accessing the washing machine’s heater, you need to check for damage, this can be identified by loose or burnt connections. If there is no visible damage, use a multimeter and check for resistance.
F03
Drain Pump
- Issue:
- Bosch Washing Machine Error Code F03 - If your washing machine has flagged up either an F03 error code, the most likely cause for this would be a problem with the drain pump as it may have become faulty.
- Advice:
- Locate the drain pump. Using a multimeter check the Pump, you will be looking for a reading of between 100 and 300 Ohms - with a reading of zero or excessively over then a pump has failed and will require replacing.
F04
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F04 - If your washing machine has flagged up with either of the following F04 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
F05
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F05 - If your washing machine has flagged up with either of the following F05 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
F08
Door Interlock
- Issue:
- Bosch Washing Machine Error Code F08 - If your washing machine has flagged up with either of the following F08 error code, the likely offender for this cause would be a faulty door interlock.
- Advice:
- The door handle and catch are not engaging correctly when closed - ensure that the door closes firmly. The door lock is perhaps sticking.
F16
Door Interlock
- Issue:
- Bosch Washing Machine Error Code F16 - If your washing machine has flagged up with either of the following F16 error code, the likely offender for this cause would be a faulty door interlock.
- Advice:
- The door handle and catch are not engaging correctly when closed - ensure that the door closes firmly. The door lock is perhaps sticking.
F17
Inlet Valve
- Issue:
- Bosch Washing Machine Error Code F17 - If your washing machine is displaying either an F17 error code on the digital display panel, the most likely cause for this would be due to a faulty inlet valve.
- Advice:
- If the water supply is turned on and the hose pipe is not kinked the problem may be due to a faulty inlet valve. Check the inlet valve with a multimeter to confirm continuity - typically 2000 to 4000 Ohms.
F18
Drain Pump
- Issue:
- Bosch Washing Machine Error Code F18 - If your washing machine has flagged up either an F18 error code, the most likely cause for this would be a problem with the drain pump as it may have become faulty.
- Advice:
- Locate the drain pump. Using a multimeter check the Pump, you will be looking for a reading of between 100 and 300 Ohms - with a reading of zero or excessively over then a pump has failed and will require replacing.
F21
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F21 - If your washing machine has flagged up with either of the following F21 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
F34
Door Interlock
- Issue:
- Bosch Washing Machine Error Code F34 - If your washing machine has flagged up with either of the following F34 error code, the likely offender for this cause would be a faulty door interlock.
- Advice:
- The door handle and catch are not engaging correctly when closed - ensure that the door closes firmly. The door lock is perhaps sticking.
F42
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F42 - If your washing machine has flagged up with either of the following F42 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
F43
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F43 - If your washing machine has flagged up with either of the following F43 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
F44
Carbon Brushes
- Issue:
- Bosch Washing Machine Error Code F44 - If your washing machine has flagged up with either of the following F44 error code, the likely offender for this cause would be a faulty motor.
- Advice:
- Depending on your model, remove the backplate to access the motor. Remove the motor and check for any signs of damage. Remove the carbon brushes and check for any signs of wear, replace if required.
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