dO
Rangemaster
Door Open Detection Fault
Display shows dO or 'door' and oven will not start.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Faulty door switch, Misaligned door or hinge, Broken door latch, Loose wiring to door switch
How to Fix / Troubleshooting
Safety first: Isolate power before removing any panels or working near wiring.
- 1. Confirm door closure: Check that the door closes evenly on both sides and that the seal is not obstructing closure.
- 2. Inspect hinges and latch: Look for bent hinges, loose hinge screws, or a damaged latch striker. Tighten or replace as necessary.
- 3. Locate door switch: On many Rangemaster ovens, the door switch is behind the front frame, actuated by the door. Access may require removing the top panel and control fascia.
- 4. Test the switch: With a multimeter, check continuity of the switch when the door is closed. Replace the switch if it does not change state reliably.
- 5. Check wiring: Ensure the switch wires are firmly connected and not heat-damaged.
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Repair Difficulty
Medium
3/5
Required Part
Oven Door Switch
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