E08
Bosch Washing Machine
Severity: CriticalWhat Does This Error Mean?
The E08 error means your Bosch washing machine's heating element has a fault. The element that heats the water during a wash cycle is not working correctly. Hot wash cycles won't reach the correct temperature until this is fixed.
Affected Models
- WAW285H2GB
- WAN28080GB
- WAT28400GB
- Most Bosch front-load washing machines
Common Causes
- The heating element has burned out — a very common failure after 5+ years
- Heavy limescale buildup has coated the element and caused it to overheat
- The wiring connection to the heating element has come loose
- The thermal overload (thermostat) on the heater has tripped or failed
- The control board is not sending the power signal to activate the heater
How to Fix It
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Turn the programme dial to Off and unplug the machine.
Wait 10 minutes for a full reset before doing anything else.
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Run a descaling cycle with a dedicated washing machine descaler.
Limescale on the heating element is a leading cause of E08. Descaling may restore it if the element hasn't fully failed.
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Plug back in and try a 40°C cotton cycle.
If the cycle runs and the water heats up, the descaling worked.
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If E08 returns, check your circuit breaker for the washing machine circuit.
A partially tripped breaker can reduce power to the heater and trigger this error.
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If neither of these fixes work, call a Bosch-certified technician.
The heating element will need to be tested with a multimeter and likely replaced.
When to Call a Professional
Heating element replacement is not a DIY repair on most Bosch models. The element sits at the bottom of the drum and requires significant disassembly. Expect repair costs of $150–$350 including parts and labor. Descaling regularly (every 3 months) is the best way to prevent element failure.
Frequently Asked Questions
Can I still wash clothes with the E08 error?
Only on cold wash cycles. Hot and warm programmes won't reach temperature with E08. Cold water washes are safe but won't sanitise or remove heavy stains. Fix the heating element as soon as possible for full washing capability.
How long do Bosch washing machine heating elements last?
In hard water areas, 4–7 years is typical. In soft water areas, elements often last 8–12 years. Regular descaling dramatically extends heating element life.
Is E08 covered by Bosch warranty?
If your machine is within the standard 2-year warranty, yes. Bosch also offers extended warranties in some regions. Check your purchase documentation or contact Bosch support to verify.