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Repairguide for VENTImotion/VENTIlogic
7.5 Replace power board
Tools and equipment required
• ESD protected work-station
• 3 mm Allen key
1. Open the device (see "7.2 Open device" on
2. Disconnect the power board/mains supply
unit connecting cable
3. Disconnect the motor cable.
4. Disconnect the O
2
valve/power board con-
necting cable
5. Disconnect all connecting cables from the con-
trol board.
6. Remove the power board from the top part of
the housing.
7. Take the rechargeable battery connecting
out of the groove and disconnect it
.
8. Disconnect the cables of the old power board
and plug them into the appropriate slots of the
new power board
– power board/control board connecting
cable
(wide connector)
– rechargeable battery connecting cable
– earth cable
9. Connect the power board/mains supply unit
10. Position the new power board in the top part
of the housing.
11. Restore the connections to the control board.
12. Connect the O
2
valve connecting cable to the
new power board.
13. Plug the motor cable back on.
Motor cable
Summary of Contents for BiLevel-ST VENTImotion WM 24800
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