WORKSHOP MANUAL
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CHAPTER
REVISION
FROM ...
PAGE
7.1
0
2018
3 of 3
TROUBLESHOOTING OF THE ELECTRICAL
SYSTEM
IMPORTANT
Faulty electronic cards must always be replaced without trying to repair them or re place single components.
PROBLEM
CAUSE
REMEDY
9. Abnormal, uncontrolled lighting up of
the LEDs or irregular card operation
Faulty or wet electronic card
Check and dry with low pressure tepid air (hair-dryer)
Bad earthing of the electronic card
Check and put right
11. The 10 A fuse cuts in
The safety devices have cut in or are faulty
Check the operation of the microswitch operation and the rel-
evant wiring
Accidental detaching of an electrical wire
Check all wiring
Starting of engine not permitted
After checking that the conditions are met, check all the micros-
witches and the relative wiring.
11. The 10 A fuse cuts in
Short circuit or overload on the power side of the card
(ignition block, starter relay, headlamps and recharger
connector)
Find and replace the defective user
Short circuit or damage to the electronic card protec-
tion (power side)
Try changing the card with one that is known to work. If the prob-
lem stops, replace the faulty card
12. The 25 A fuse cuts in
Faults in the battery charging circuit
Replace fuse (25 A) and check the recharge circuit
13. No audible signal for the “grass-
catcher full” condition
Malfunctioning or faulty blade microswitches and
grass-catcher signalling
Check the microswitches and wiring.
WARNING!
- Check that the blades microswitch stops the
engine or prevents if from being started if the acknowledgement
conditions are not met..
Malfunctioning or faulty electronic card
Try changing the card with one that is known to work. If the prob-
lem stops, replace the faulty card
