LG Microwave DOOR error code
- Microwave
On LG microwaves, error DOOR indicates: Door is open or the door switch is not making contact. Start with a 5-minute power reset at the breaker, then follow the microwave-specific checks below before ordering replacement parts for DOOR. If the code returns on two consecutive cycles after a reset, treat it as a confirmed fault — not a one-time power glitch.
Reviewed August 2025 · sources below
Safe to keep using?
Stop using
Severe overheating requires stopping use until the cause is identified.
- • Unplug the appliance before inspection.
- • Microwave high-voltage components can retain lethal charge even when unplugged.
- • Do not continue using the appliance until the cause is identified.
Next step
Still seeing DOOR?
Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
How to fix DOOR
- Unplug the microwave and wait at least 5 minutes — high-voltage components can hold a lethal charge even when unplugged.
- Reset LG DOOR: leave power off for 5 minutes, restore power, then restart. Confirm whether DOOR returns.
- Check the most common cause for DOOR: Door is open or the door switch is not making contact.
- Inspect the control pad for stuck keys, damaged membrane switches, and loose ribbon cable connections.
- If a reset and basic checks don't clear the code, use our lookup tool for AI-powered diagnosis or contact a qualified technician.
- Reassemble, restore power, and run a test cycle. If DOOR returns, the faulty component likely needs replacement.
Call a pro when: Call a technician before opening the cabinet — microwave high-voltage parts can retain a lethal charge even when unplugged. Also call if you smell burning, see sparking, or the code returns after a reset.
What DOOR means
Door is open or the door switch is not making contact.
Likely causes
Many codes resolve with cleaning, resetting, or reconnecting.
Check: Power-cycle the appliance and check for obvious blockages or loose connections.
Est. cost: $0–$0
Wear or electrical failure of an internal part.
Check: If basic checks fail, the faulty component likely needs replacement.
Est. cost: $0–$100
Professional assistance recommended
This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.
Questions about DOOR
What does DOOR error code mean on a LG microwave?
Door is open or the door switch is not making contact.
How do I reset LG microwave DOOR?
Unplug the microwave or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored DOOR after a glitch, but the code will return if the underlying fault is still present.
What part do I need for LG DOOR?
Not always — some DOOR errors are caused by user-fixable issues like clogs or unbalanced loads. Try the troubleshooting steps first.
Can I fix LG error DOOR myself?
Basic resets and stuck-key checks are DIY-safe. Do not open the microwave cabinet or discharge the high-voltage capacitor yourself — call a qualified technician for internal repairs.
LG DOOR on specific models
Other LG Microwave codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Door is open or the door switch is not making contact.
FixApplianceCode guidance
Start with basic checks for LG DOOR before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-10-24
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
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