E
Nilfisk
ALTO
Attix7_ver.1.0_140105
7.12 Checking electronic level control in automatic mode
(Attix 751-61/-71, 19 Gallon/AE)
1. Make sure the unit is isolated from the power supply.
2. Remove the hood (see 4.4, page 30).
3. Place the cleaner head on a table so that the hose
hangs downwards.
4. Remove the two motor cables from the board and
the switch.
5. Connect the test lamp 302000764.
6. Insert the test lamp 302000765 in the socket.
7. Apply line voltage and set the switch to “Auto”.
Visual check:
Green LEDs (D2 and D7) illuminate.
Red LED (D3) flashes.
Check soft start:
The motor lamp slowly starts to illuminate (soft
start).
Continued on page 42
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Troubleshooting
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