How to Fix Bosch Washing Machine E28 Error
The E28 error code on a Bosch washing machine typically indicates a problem with the flow sensor, which monitors the water entering your appliance. This error often triggers when the machine fails to detect sufficient water flow during the initial fill cycle.
Understanding the E28 Fault
- The E28 error signifies that the flow sensor is not receiving the expected data, usually due to restricted water supply or a mechanical blockage.
- It is important to distinguish between a genuine sensor failure and external issues like low household water pressure or clogged inlet filters.
Safe Steps to Try Before Calling a Technician
- Check your home's main water tap to ensure it is fully open and that there is sufficient pressure reaching the washing machine inlet hose.
- Turn off the water supply, unscrew the inlet hose from the back of the machine, and inspect the small mesh filter inside the valve for debris, sand, or mineral buildup.
- Gently clean the mesh filter with a soft brush and rinse it under running water before reattaching the hose securely.
- Check the inlet hose for any sharp kinks or bends that might be restricting the flow of water into the drum.
Always unplug the washing machine from the power socket before inspecting the water inlet valves to prevent any risk of electrical shock.
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Frequently Asked Questions
Does the E28 error always mean the sensor is broken?
Not necessarily. Most E28 errors are caused by external water supply issues or clogged inlet filters rather than a permanent hardware failure.
Can I use a needle to clean the inlet filter?
Avoid using sharp objects like needles as they can puncture the fine mesh screen; use a soft-bristled toothbrush instead.
What should I do if the error persists after cleaning the filter?
If you have verified the water pressure and cleaned the filter but the error remains, the flow sensor or the inlet valve may be faulty and require professional replacement.
Is it safe to keep trying to restart the machine?
Repeatedly forcing the machine to start without water can overheat the inlet valve solenoid; if it fails twice, stop and call for professional assistance.
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