E90On Bosch / Siemens dishwashers, error code E27 means: Power supply voltage out of range. Stop the programme and fix the cause before using it again. If the code keeps returning, call a technician.
Can I keep using the machine?
Stop the programme and fix the cause before using it again. If the code keeps returning, call a technician.
Common causes
- Unstable mains power or a loose plug/socket
How to fix it
- Plug directly into a wall socket (no extension lead) and check your power supply
- Unplug the machine for a few minutes, then switch it back on (reset)
- If the code keeps coming back, contact an authorised service technician
Frequently asked questions
What does Bosch / Siemens error E27 mean?
On Bosch / Siemens dishwashers, error code E27 means: Power supply voltage out of range.
How do I fix Bosch / Siemens error E27?
Start with these steps: Plug directly into a wall socket (no extension lead) and check your power supply; Unplug the machine for a few minutes, then switch it back on (reset); If the code keeps coming back, contact an authorised service technician.
Can I keep using the dishwasher with error E27?
Severity: Medium. Stop the programme and fix the cause before using it again. If the code keeps returning, call a technician.