If your Bosch refrigerator appears not to turn on, first check whether the whole appliance is unresponsive or only its display is blank. Confirm that the plug and outlet supply power, then inspect the breaker and cord. A power reset may clear a temporary control glitch, but a unit that remains dark with a working outlet needs service. If a code appears, record it before resetting anything.
Is the refrigerator off, or is only the display blank?
Look for any sign that the appliance is operating, then check the display separately. A blank display is not the same observation as a refrigerator with no lights or other activity. This distinction helps you describe the fault when you seek support. An error code is an alphanumeric message shown by the refrigerator’s controls when the system detects an abnormal reading or circuit condition. Note the exact characters, including any leading zero, and find your model number in the appliance documentation or on its label.
The meaning can depend on the model.
What should I check when my Bosch refrigerator will not turn on?

Work through the external power checks before considering internal parts. You can make these observations without removing a control panel.
Warning: Electrical safety
A damaged cord or plug can pose shock and fire hazards. Switch off the dedicated circuit breaker before inspecting it, and never plug in a cord with exposed wires.
- Check that the power plug is seated securely in the wall outlet.
- Test the outlet with another working appliance, such as a lamp or charger.
- Check whether the outlet is a GFCI outlet (one with Test and Reset buttons) and whether it has tripped; repairclinic.com advises against running a refrigerator on a GFCI-protected outlet because those outlets are prone to nuisance tripping.
- Look at the electrical panel for a tripped refrigerator breaker or blown fuse; reset a tripped breaker fully off, then on.
- With the dedicated breaker off, inspect the visible power cord and plug for cuts, fraying, scorch marks, or damaged prongs.
- If power is available and the cord appears intact, try the documented power reset.
searshomeservices.com describes the outlet test, breaker check, and visible cord inspection. If the cord or plug is damaged, arrange service rather than continuing to power the unit.
How do I power-reset the refrigerator?
Bosch’s Canadian service guidance at bosch-home.ca describes disconnecting the refrigerator from power, or switching off its dedicated breaker, for at least 30 seconds to 10 minutes before restoring power. Keeping power disconnected for 5 to 10 minutes allows electrical capacitors to drain fully and forces the main control board to reboot. If a quick reset does not resolve the issue, attempt this full 5-to-10-minute wait before concluding the reset did not help. Check your model’s manual or Bosch support if its procedure differs.
After power returns, observe whether the display and the refrigerator respond, and record any code that reappears. A reset that clears a message temporarily does not establish why it appeared. If the appliance remains unresponsive, move to service rather than repeating the reset.
What does a Bosch refrigerator error code mean?
A displayed code points you toward a system that needs checking, but its exact meaning must be matched to the model. The table separates the symptoms discussed here; it is not a complete Bosch code list.
| What you see | Possible meaning | Next check |
|---|---|---|
| No lights or display activity | Power supply or internal electrical fault may be involved | Confirm the outlet and breaker; seek service if the outlet works |
| Display blank while the appliance shows activity | Control board or user interface may be involved | Record what still works and arrange diagnosis |
| E2 on the display | A freezer temperature-sensor or related wiring fault may be involved; some model families differ | Check the model’s code guidance and arrange diagnosis if E2 persists |
What does the E2 code indicate?
smartapplianceservices.com associates Bosch E2 with a freezer-compartment temperature sensor, also called a thermistor, or its wire harness. A damaged connection can affect the reading reaching the main control board. This is a fault description, not a reason to replace a part without diagnosing your refrigerator.
According to fredsappliance.com, on certain Bosch 500 and 800 Series French-door models, such as the B36FD50SNS series, E2 may also point to the ice maker module, the IWS board, ice chute gasket alignment, or a temperature-controlled drawer sensor. Check the code against your exact model number before ordering a freezer sensor. If it returns after a reset, describe the code and model to a qualified technician.
Why is the display still unresponsive?
If the outlet supplies power but the display remains blank, a failed electronic control board or user interface is possible. searshomeservices.com identifies both as potential causes of a Bosch display failure. An external power check cannot tell you which internal component is at fault.
Tell the technician whether the appliance has any lights or other activity. That observation helps distinguish a display fault from a completely unpowered unit. Internal wiring and board checks belong in a professional diagnosis.
When should I arrange service?
Arrange service if the outlet works but the refrigerator still has no lights or display activity; repairclinic.com recommends a qualified technician in that situation. Seek diagnosis as well if E2 returns or the display stays blank after the external checks. Note your model, the exact code, and what you observed before contacting Bosch support or an appliance technician.