Weinmann BiLevel-ST VENTImotion WM 24800, Service And Repair Instructions

Page: 33 / 64

Repairguide for VENTImotion/VENTIlogic 33
7.4 Replace mains supply unit
Tools and equipment required
• ESD protected work-station
• 3 mm Allen key
1. Open the device (see "7.2 Open device" on
page 31).
2. Disconnect the power board/mains supply
unit connecting cable
45
from the power
board (wide connector).
3. Slightly lift mains supply unit
44
and disconnect
the mains input connector from the mains sup-
ply unit
44
.
4. Lift the mains supply unit out of the top part of
the housing.
5. Disconnect the power board/mains supply
unit connecting cable from the mains supply
unit and plug into the new mains supply unit.
6. Position the new mains supply unit in the top
part of the housing. Plug the mains input con-
nector onto the new mains supply unit in the
process.
7. Plug the power board/mains supply unit con-
necting cable
45
onto the power board (wide
connector).
Caution!
Be absolutely sure that power board/mains sup-
ply unit connecting cable 45 is between the head
of the screw and the box as well as in the groove
of the power board. Ensure that the rechargeable
battery cable is in the groove. Otherwise the ca-
ble may be trapped and damaged when the de-
vice is closed.
8. Close the device (see "7.3 Close the device"
on page 32).
9. Test the device (see "4. Test the device" on
page 13).
44 45
Mains input
connector
Rechargeable
battery cable