Troubleshooting 41
8.1 Power pack
ACCUVAC Basic is fitted with a high-grade lead cell
power pack.
Changing power pack
Important
Never touch the circuit board, as this can damage
the electronic system.
1. Switch off ACCUVAC Basic.
Not charging
AC adapter/charger plug defective
Have repairs carried out at factory or
by expert personnel
Inadequate external power supply
External power supply must be
between 12.0 and 13.8 volt.
Fuse F100 or F101 defective Fit new fuse (8.2, page 44)
Fuse in vehicle plug defective Fit new fuse (8.2, page 44)
Snap-in connection between circuit
board and power pack not properly
engaged
Make sure connection snaps in
Power pack is not fully
charged up despite
charging for 14 hours
(top LED in voltage
indicator does not light
up)
Charger does not meet
specifications
Use AC adapter/charger plug
WM 10750 or mains / charger unit
FW7405M/14, complete WM 2610
Vehicle electrical system is not
supplying 12.0 – 13.8 V
Check vehicle electrical system
Power pack damaged by being fully
discharged
Fit new power pack (8.1, page 41)
Power pack at end of service life
Top LED of voltage
indicator lights up after
charging, but pump does
not run when powered by
power pack
Internal connection faulty
Check internal connection between
printed circuit board (X100) and
power pack
Fuse F101 defective Fit new fuse (8.2, page 44)
Fuse F101 frequently
blows
Pump is often switched on under
vacuum conditions
Do not switch on pump under
vacuum
Pump defective
Have repair carried out at factory or
by expert personnel
Fault Cause Remedy
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