Bosch dishwasher: error E27E90
Code E27 / E90 on a Bosch dishwasher display means: supply voltage problem.
- Meaning
- Supply voltage problem
- Check first
- Plug the dishwasher straight into a socket, without an extension cord.
- Repair shop
- 0 zł, not a fault
Most common causes
- Voltage fluctuations in the mains
What you can check yourself
Plug the dishwasher straight into a socket, without an extension cord.
Unplug it for 5 minutes.
If the error returns, check the electrical wiring.
- the error keeps coming back after these checks,
- water is leaking or you smell burning,
- the appliance trips the circuit breaker.
Is it worth repairing?
Pick your model and fault. We compare the repair cost with what the appliance is worth.
Open the calculator →Questions
What does error E27 mean on a Bosch dishwasher?
Code E27 / E90 means: supply voltage problem. The most common causes: voltage fluctuations in the mains.
Can I keep using the dishwasher with error E27?
If the error goes away after the checks above, yes. If it keeps coming back, water leaks, you smell burning or the breaker trips, stop using it and call a repair service.
Other codes: Bosch dishwasher
- E15water in the dishwasher base (Aquastop)
- E24drain problem: clogged filter or hose
- E25blocked drain pump
- E22clogged filter
- E09water heating problem
- E14 / E17water supply problem
- E01 / E02 / E03 / E04 / E05electronics or control module fault
- E06 / E8000door sensor fault
- E12limescale in the heating pump or too little salt
- E16 / E18 / E32water supply problem
- E20 / E21heating pump blocked or heater fault
- E23drain pump problem
A code can mean different things on different models and years. Always check the manual or the manufacturer's support page too. Repair prices are approximate, for repair shops in Poland.