Error code
Bosch Dishwasher Error Code E29
Bosch Dishwasher E29 usually means the dishwasher has detected an internal power, control, or supply-related fault. Check the safe external items first, then stop if the code returns or there is leaking, burning smell, or poor heating.
Quick answer
E29: what does it mean and how to fix
What does it mean?
the dishwasher has detected an internal power, control, or supply-related fault.
How to fix first
Switch off at the wall or isolate power for a few minutes.
Why is this happening?
Temporary control interruption
When should I call an engineer?
Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.
What does this error code mean?
Bosch dishwasher error code E29 is best treated as a control or electrical supply fault unless your model manual states otherwise. It can appear when the dishwasher cannot confirm normal power or control behaviour.
Try only one safe power reset. If E29 returns, do not open the dishwasher cabinet or inspect wiring; compare nearby control-style faults such as Bosch dishwasher E01.
This code is handled as a power and control-path warning involving supply stability, wiring, power electronics, or control communication.
Symptoms users may notice
- The dishwasher may fail to start normally.
- The display may show E29 after power-up.
- The controls may behave unpredictably or stop mid-cycle.
Why is this happening?
- Temporary control interruption
- Unstable supply or failed start-up check
- Internal wiring, power module, or control-board fault
What this usually points to
This code is handled as a power and control-path warning involving supply stability, wiring, power electronics, or control communication.
How to fix this safely
- Switch off at the wall or isolate power for a few minutes.
- Restore power and try one short programme only if the display and controls behave normally.
- Stop if E29 returns, the display flickers, or the dishwasher behaves unpredictably.
- Arrange diagnosis rather than removing panels or checking wiring.
Can I fix this myself?
MaybeYou can carry out simple external checks such as filters, hoses, visible water, and correct loading. Stop when the fault points to internal pumps, heaters, wiring, or controls.
Safety boundary: Disconnect power before accessible checks. Do not remove panels, bypass safety devices, work on wiring, or run the dishwasher if water may be reaching electrical parts.
What not to do
- Do not keep repeating resets if the same code comes back.
- Do not remove panels or work on internal wiring, pumps, valves, or heater parts.
- Do not ignore leaks, burning smells, or unusual pump noises.
Reset steps
- Restore power only after the safe external checks are complete and the area is dry.
- Run one short test programme if there is no visible leak, smell, or electrical concern.
- Stop if the code returns or the dishwasher fails to fill, heat, drain, or wash normally.
Intermittent vs persistent faults
A one-off warning may clear after safe external checks, but repeated Bosch dishwasher faults should be treated as a persistent problem that needs diagnosis.
When to call an engineer
Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.
Safety warning
Disconnect the dishwasher from power before checking accessible filters, hoses, or seals, and do not remove panels or work on internal electrical, pump, heater, or valve parts yourself.
Useful hub links
Related power and control fault codes
Bosch Dishwasher Error Code E01
the dishwasher has detected an electronic control fault.
Bosch Dishwasher Error Code E09
the dishwasher is not heating water properly.
Bosch Dishwasher Error Code E19
a dishwasher valve or heat-exchanger related component may not be operating correctly.
Bosch Dishwasher Error Code E15
The dishwasher anti-flood system has been triggered
Relevant guide
Frequently asked questions
What does Bosch dishwasher E29 mean?+
Bosch Dishwasher Error Code E29 usually means the dishwasher has detected an internal power, control, or supply-related fault.
How do I fix Bosch dishwasher E29?+
Start with safe external checks only: switch off power, inspect filters, hoses, water around the base, and the visible wash cabinet as relevant. If the code returns, arrange diagnosis.
Can I still use a Bosch dishwasher with E29?+
Do not keep using it normally while the code is showing. One short test is only reasonable after safe checks and only if there is no leak, smell, or electrical concern.
Model variation note
Bosch dishwasher code wording can vary by model. Use the exact model manual where available, and keep checks to safe user-accessible areas.