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The lid can not be opened
Error The lid can not be opened.
The rotation display shows (lid open).
Error cause
• Microswitch at lid lock is defective
• Loosen contact on plug ST4 / pin 5 and pin 6
• Power board (A1) or control panel (A3) defective
Measurement Remove plug ST4 and measure on the plug between pin 5 and
pin 6:
Switch closed: ≈ 0 Ω
Switch: open ∞ Ω
See also section 11.2.3.
Opening the lid Release the lid by using the emergency release.
The lid can not be opened
Error
The lid can not be opened.
The rotation display shows (lid closed).
Error cause
• Solenoid on lid lock is defective
• Loosen contact on plug ST4 / pin 1 and pin 3
• Power board (A1) or control panel (A3) defective
Measurement Remove plug ST4 and measure on the plug between pin 1 and
pin 3. See also section 11.2.3.
Opening the lid Release the lid by using the emergency release.
No display
Error No power supply on control board (A3)
Error
consequence
No operation possible
Error cause
• No mains supply
• Power board (A1) defective
• Control board (A3) defective
• Interruption in the flat ribbon cable between power board (A1)
and control board (A3)
Measurement 1. Mains supply, power board A1, plug ST1.2 (L) to ST1.1 (N)
2. Power board A1, plug ST3 pin 4 (+5V) to pin 1 (GND)
3. Control board A3, plug ST1 pin 4 (+5V) to pin 1 (GND)
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