mypros+
Error code reference

Moffat Oven Error Code dor

Door open or door microswitch open circuit indicating the door is not properly closed.

Moffat codesMoffat oven codes

Door open or door microswitch open circuit indicating the door is not properly closed.

First step from the service manual

Check if door is closed; if closed, check microswitch for open circuit.

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

MyPros+ Max

Get the full diagnostic procedure for dor.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What dor means on a Moffat oven

The dor error code on a Moffat oven indicates that the control system has detected the oven door as open, or that the door microswitch is presenting an open circuit condition. This code is generated when the oven's control board does not receive the expected closed-circuit signal from the door microswitch, which is the small switch mechanism that physically confirms door position. The control board monitors this switch continuously, and if the circuit reads open when it should be closed, it triggers the dor fault to prevent unsafe operation.

The door microswitch is a critical safety component. When the door is properly shut, the switch contacts close and complete a low-voltage signal circuit back to the control board. If the door is ajar, the hinge is misaligned, or the switch itself has failed internally, this circuit remains open and the fault is logged. A failed switch can present an open circuit even when the door is physically closed and latched, which is why the first diagnostic step requires both a visual check of door closure and an electrical check of the switch.

Common failure scenarios include a worn or broken microswitch that no longer actuates when the door closes, a door that has sagged on its hinges so the switch actuator is not being depressed fully, or wiring between the switch and the control board that has become loose or corroded. Any of these conditions will produce the same dor code regardless of actual door position.

Source: manufacturer service documentation.

Common causes of dor

  1. 01

    Door not fully closed

    Wiring / connection

    The door may be slightly ajar, obstructed by a rack, or not latched completely. Push the door firmly shut and check whether the error clears.

  2. 02

    Faulty door microswitch

    Part replacement

    The microswitch may have failed internally and is presenting an open circuit even with the door closed. Testing the switch with a multimeter across its terminals will confirm whether it is reading open when it should show continuity.

  3. 03

    Misaligned door or worn hinges

    Part replacement

    If the oven door has sagged or the hinges have worn, the door may close but not travel far enough to fully depress the microswitch actuator. Visually inspect the door for gaps along the frame and check hinge condition.

  4. 04

    Loose or damaged wiring to the microswitch

    Wiring / connection

    The wiring harness connecting the microswitch to the control board may have a loose connector or damaged wire, creating an open circuit in the signal path. Inspect the connector at the switch and trace the wiring for visible damage.

  5. 05

    Control board fault

    Part replacement

    In less common cases, the control board itself may have failed and is not correctly reading the closed signal from a functioning microswitch. This is typically diagnosed only after the switch and wiring have been confirmed good.

See the test procedure for each cause

Frequently asked questions about dor

What does dor mean on a Moffat oven?
The dor code on a Moffat oven means the control board has detected the door as open or has received an open circuit signal from the door microswitch. The oven uses a microswitch to confirm door position, and if that switch is not completing its circuit, the fault code is triggered. This can happen because the door is genuinely open, the switch has failed, or there is a wiring issue between the switch and the control board.
Can I fix the dor error myself?
If the door is simply not fully closed, pushing it firmly shut will clear the error without any repair work. If the microswitch has failed, a technician or experienced DIYer can replace it after disconnecting power to the appliance. Replacing a door microswitch is a moderately straightforward repair, but it does require safely accessing the door or cavity panel where the switch is mounted.
Is it safe to use my Moffat oven while the dor code is showing?
It is not recommended to operate the oven while the dor fault is active. The door microswitch is a safety component, and the control system may prevent the oven from heating when this fault is present. Even if heating were possible, running the oven with an unconfirmed door position could present a heat or fire risk.
How much does it cost to repair a dor error on a Moffat oven?
If only the door microswitch needs replacement, parts typically range from around $10 to $40 depending on the specific component, and a service call with labor can bring the total to between $80 and $200. If the control board has failed, repair costs will be higher, generally in the range of $150 to $350 or more. Getting a diagnostic visit from a qualified technician will give you a more accurate estimate for your specific unit.
Will resetting the oven clear the dor error code?
Resetting the oven by cycling the power may temporarily clear the display, but the dor code will return if the underlying problem has not been fixed. If the microswitch is faulty or the door is misaligned, the fault condition still exists and the code will reappear once the control board checks the door circuit again. A reset is useful for confirming whether the error is intermittent, but it is not a substitute for diagnosing and correcting the root cause.

Related Moffat oven codes

All Moffat oven codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass