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E27

Mains voltage too low

E27 indicates insufficient voltage in the electrical supply rather than an internal dishwasher fault.

What this code means

E27 indicates insufficient voltage in the electrical supply rather than an internal dishwasher fault.

Possible causes

  • Mains voltage below the required level
  • Electrical supply problem

Common symptoms

  • E27 displayed
  • Dishwasher may stop or refuse to operate normally

Checks to make

  1. Do not repeatedly restart the dishwasher
  2. Check whether there are wider supply problems in the property
  3. Arrange an electrician to investigate the electrical supply if the fault persists

Safety

  • Do not open the appliance or work on fixed electrical wiring unless qualified to do so.

Model notes

Bosch states that E27 usually appears when mains voltage is below about 170 V.