Bosch · Dishwasher

Bosch dishwasher E27 code

ErrorE27

E27 is listed by Bosch support as incoming household voltage is too low. The exact checks and component layout can vary by model and region.

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Source-linked guidance reviewed against Bosch US dishwasher error codes.

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What the code means

Incoming household voltage is too low

Do not open fixed panels or test live electrical parts. Record the full model number and arrange qualified service if the code returns after the permitted external checks.

Typical symptoms

01The dishwasher may reset, pause, or fail to complete a cycle

02The fault can appear when household voltage drops under load

03E27 returns even though the dishwasher itself has not been opened

Likely causes

Start with the least invasive explanation and stop if the check requires internal electrical or sealed-system access.

01Incoming household voltage is too low

Safe next steps

1
Stop the dishwasher and turn its breaker off for 30 seconds
Follow the exact model manual where access or reset steps differ by product series.
2
Restore power and run one short rinse cycle without other high-load appliances on the same circuit
Follow the exact model manual where access or reset steps differ by product series.
3
If E27 returns, stop using the dishwasher
Follow the exact model manual where access or reset steps differ by product series.
4
Have a qualified electrician check the outlet and incoming voltage; do not test live wiring yourself
Follow the exact model manual where access or reset steps differ by product series.

When to stop

Stop if you see damaged wiring, smell burning, find an active leak, suspect gas or refrigerant, or need to remove a sealed electrical cover. Use a qualified appliance technician.