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Error code reference

U-Line Ice Maker Error Code R Door Open 5M

Right door switch has been open for more than 5 minutes.

U-Line codesU-Line ice maker codes

Right door switch has been open for more than 5 minutes.

First step from the service manual

Verify door is closed and sealing. Inspect cable arm, verify presence of magnet, verify proper operation and movement of arm.

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

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What R Door Open 5M means on a U-Line ice maker

The R Door Open 5M error code on a U-Line ice maker indicates that the right door switch has been continuously in the open state for more than five minutes. U-Line ice makers use a magnetic reed switch system to detect door position. A cable arm assembly with an attached magnet moves in proximity to the switch as the door opens and closes. When the magnetic field is not detected for an extended period, the unit registers this as a persistent door-open condition and triggers the alert to protect the ice-making cycle and stored ice quality.

The most common source of this fault is a physical door alignment or closure problem rather than an electronic failure. If the door is not fully latched, the magnet on the cable arm never reaches the switch, and the unit cannot confirm a sealed position. Beyond the door itself, the cable arm mechanism is a moving part that can shift out of position, become obstructed, or detach from its mount, preventing the magnet from aligning correctly with the sensor. A missing or dislodged magnet on the arm will produce the same result regardless of arm movement.

Diagnosis should start by confirming the door closes fully and the gasket seals against the cabinet without gaps. Next, inspect the cable arm visually for correct position, unobstructed movement, and the presence of the magnet. If the arm is intact and the door seals properly, the door switch itself may have failed and require testing or replacement to clear the fault.

Source: manufacturer service documentation.

Common causes of R Door Open 5M

  1. 01

    Door not fully closed or misaligned

    Wiring / connection

    The door may not be latching completely due to an obstruction, ice buildup, or hinge misalignment. Inspect the door gasket for gaps and confirm the latch engages fully when closed.

  2. 02

    Cable arm out of position or obstructed

    Wiring / connection

    The cable arm that carries the magnet must move freely through its full range of motion. If it is bent, shifted from its mount, or blocked by ice or debris, it cannot signal a closed door position.

  3. 03

    Missing or dislodged magnet on cable arm

    Part replacement

    The magnet on the cable arm triggers the door switch sensor. If the magnet has fallen off or shifted, the switch will never read a closed state even when the arm moves correctly.

  4. 04

    Faulty door switch

    Part replacement

    The magnetic reed switch itself can fail and stop responding to the magnet even when alignment is correct. A failed switch will require replacement to resolve the error.

  5. 05

    Damaged or disconnected wiring to door switch

    Wiring / connection

    The wiring harness connecting the door switch to the control board can become pinched, corroded, or disconnected. Inspect the wiring path from the switch back to the control board for visible damage or loose connections.

See the test procedure for each cause

Frequently asked questions about R Door Open 5M

What does R Door Open 5M mean on a U-Line ice_maker?
This error means the right door switch has been in the open state for more than five minutes continuously. The unit uses a cable arm with a magnet to signal door closure to a magnetic reed switch. When that signal is absent for over five minutes, the alert is triggered. The cause may be a door that is not fully closed, a displaced arm or magnet, or a failed switch.
How do I fix the R Door Open 5M error on my U-Line ice maker?
Start by confirming the right door closes completely and the gasket seals against the cabinet on all sides. Then locate the cable arm inside the unit, verify it moves freely, and check that the magnet is still attached and properly seated on the arm. If the door and arm are both in good condition, the door switch may need to be tested and replaced.
Will resetting the unit clear the R Door Open 5M error?
A power reset may clear the displayed error temporarily, but the code will return if the underlying cause has not been corrected. The unit must be able to confirm a closed door through the switch and magnet system before the fault stays resolved. Address the door closure, cable arm, and magnet first before attempting a reset.
Is it safe to keep using my U-Line ice maker while this error is showing?
Continuing to run the unit with this error active means the ice maker may not be operating the ice production cycle correctly, since door position affects machine operation. If the door is genuinely not sealing, warm air intrusion can affect ice quality and cause excess condensation or frost buildup. It is best to diagnose and correct the fault before resuming normal use.
How much does it cost to repair the R Door Open 5M error on a U-Line ice maker?
If the fix is simply repositioning the cable arm or closing the door properly, there is no parts cost involved. Replacing a missing or damaged magnet component is generally a low-cost repair, typically in the range of a few dollars to around twenty dollars for the part. A door switch replacement, including a service call, could range from roughly seventy-five dollars to over two hundred dollars depending on your location and service provider.

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