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Error code reference

Bosch Refrigerator Error Code Er dR

Refrigerator compartment door switch has been open for longer than 1 hour.

Bosch codesBosch refrigerator codes

Refrigerator compartment door switch has been open for longer than 1 hour.

First step from the service manual

Open and close refrigerator compartment door.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What Er dR means on a Bosch refrigerator

The Er dR error code on a Bosch refrigerator indicates that the refrigerator compartment door switch has registered an open-door condition for longer than one continuous hour. The door switch is a small sensor, typically a mechanical plunger or magnetic reed switch mounted in the door frame, that signals the control board whether the refrigerator door is open or closed. When this signal remains in the open state for 60 minutes or more without interruption, the control board logs the Er dR fault to alert the user and protect the unit from unnecessary temperature loss and compressor strain.

The most common trigger for this error is simply a door left ajar, either intentionally or because an obstruction such as a food container or drawer is preventing the door from fully closing. However, if the door is physically closed and the error persists, the fault points to a problem in the door switch circuit itself. A faulty door switch may be stuck in the open position, or the wiring harness connecting the switch to the control board may have a break or poor connection. In some cases, a misaligned door gasket or worn door hinge can allow a gap that the switch cannot detect as closed.

The first diagnostic step is to open and close the refrigerator compartment door deliberately to reset the switch signal. Check that the door closes completely and that the interior light turns off when the door is shut, which confirms the switch is responding. If the error returns or the light stays on with the door closed, the switch or its wiring requires further inspection and likely replacement.

Source: manufacturer service documentation.

Common causes of Er dR

  1. 01

    Door left ajar or obstructed

    Wiring / connection

    Food containers, drawers, or shelves positioned too close to the door opening can prevent the door from fully latching. Inspect the interior for any items blocking the door path and ensure the door closes flush.

  2. 02

    Faulty door switch

    Part replacement

    The door switch itself may be stuck in the open position or have failed internally, causing the control board to continuously read the door as open even when it is physically closed. Check whether the interior light turns off when the door is shut; if it stays on, the switch is suspect.

  3. 03

    Worn or damaged door gasket

    Part replacement

    A door gasket that has lost its seal or is torn can allow a gap between the door and the cabinet, preventing the switch from registering a fully closed position. Inspect the gasket around the full perimeter of the door for cracks, tears, or flat spots.

  4. 04

    Broken or loose wiring to the door switch

    Part replacement

    The wiring harness running from the door switch to the control board can develop breaks or loose connectors, particularly at the door hinge area where repeated flexing occurs. A visual inspection of the harness near the hinge point can reveal damaged insulation or disconnected terminals.

  5. 05

    Misaligned or sagging door hinge

    Part replacement

    A worn or bent door hinge can cause the door to hang at an angle, preventing the switch plunger or magnet from making proper contact. Check whether the door sits evenly in the frame when closed and whether there is visible drooping on the door edge.

See the test procedure for each cause

Frequently asked questions about Er dR

What does Er dR mean on a Bosch refrigerator?
Er dR means the refrigerator compartment door switch has detected an open-door condition for longer than one continuous hour. The control board monitors the door switch signal and triggers this code when the open state persists past the 60-minute threshold. It can indicate a door that was physically left open or a door switch that has failed and is incorrectly reporting the door as open.
How do I fix the Er dR error on my Bosch refrigerator?
Start by opening and closing the refrigerator door deliberately to reset the switch signal. Make sure nothing inside the refrigerator is blocking the door from closing fully, and confirm that the interior light goes out when the door is shut. If the error returns with the door properly closed, inspect the door gasket for damage, check the door hinges for alignment, and test or replace the door switch if it appears faulty.
Will resetting my Bosch refrigerator clear the Er dR code?
A power reset, such as unplugging the unit for a few minutes, may temporarily clear the error code from the display. However, if the underlying cause is a failed door switch, damaged wiring, or a door that does not close properly, the code will return once the control board detects the open-door condition again for an hour or more. The root cause must be corrected for the code to stay cleared.
Is the Er dR error on a Bosch refrigerator a safety concern?
Yes, this error warrants prompt attention. A door that is genuinely open or a switch that is stuck reporting an open condition means the refrigerator interior is not being properly maintained at safe food storage temperatures. Prolonged warm temperatures inside the refrigerator compartment can allow bacterial growth in perishable foods. The compressor and other components also work harder under these conditions, which can reduce their service life.
How much does it cost to repair the Er dR error on a Bosch refrigerator?
If the fix is simply closing a door that was left ajar or repositioning food items, there is no cost involved. Replacing a faulty door switch typically costs between $20 and $75 for the part, plus labor if a technician is hired, bringing the total repair cost to approximately $100 to $250 depending on your location and service rates. A door gasket replacement is in a similar range, while hinge repairs or control board diagnostics can push costs higher.

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