Quick diagnosis
What this code is telling you
Most likely trigger
Broken plastic door latch key hook
Recommended replacement
Door Interlock Microswitch
Diagnostic path
4 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
The microwave control displays this fault after detecting an abnormal sensor, keypad, door, inverter, or heating condition. Check broken plastic door latch key hook first; misaligned door hinge and failed primary or secondary door interlock microswitch can trigger the same code and should be ruled out before replacing door Interlock Microswitch.
Symptoms
What you may notice
- ✓Microwave will not start when START button pressed
- ✓Door latch light flickers
- ✓E-83 code displayed on screen
Possible causes
Check the most likely causes first
- 1
Broken plastic door latch key hook
Start here when it matches your symptoms.
- 2
Misaligned door hinge
- 3
Failed primary or secondary door interlock microswitch
- 4
Loose wire terminal
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Check door latch keys for cracked or snapped plastic hooks.
- 2
Check 2
Ensure door closes firmly with clean click sound.
- 3
Check 3
Disconnect electrical power before opening panels. Test all 3 door interlock microswitches for continuity when depressed.
- 4
Check 4
Replace defective door microswitch or latch key.
Replacement part reference
Door Interlock Microswitch
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for E-83?
Start with broken plastic door latch key hook. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does E-83 always mean Door Interlock Microswitch is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting E-83 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
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