BETONPARTSDiagnosis sheet · https://betonparts.com/en/faults/twin-shaft/door-signal/
Twin-shaft mixer · Discharge door
"Door open" shown while the door is closed
- Symptom
- "Door open" shown while the door is closed
- Likely cause
- Switch arm bent or covered in concrete, wrong sensor gap, or wiring.
- Check
- Switch, sensor, PLC input.
- Fix
- Clean, adjust or replace. Fit a cover over the switch.
Manual · Book 1 · § 12.4 · 7.6
Parts you may need
⚠ Every look inside, turn by hand or open step means full lockout first. Never enter a silo or a bin with material in it.
Plant / site
Machine and serial no.
Date
Checked by
Findings and actions
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