WORKSHOP MANUAL
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TROUBLESHOOTING OF THE ELECTRICAL
SYSTEM
CHAPTER
REVISION
FROM ...
PAGE
7.11
0
2018
3 of 3
IMPORTANT
Faulty electronic cards must always be replaced without trying to repair them or re place single components..
PROBLEM
CAUSE
REMEDY
9. The battery indicator light is blinking
Recharge overvoltage
Check the recharge circuit
Battery insufficiently charged at start-up
Recharge the battery
10. Abnormal, uncontrolled lighting up of
the LEDs or irregular card operation
Faulty electronic card
Check
Bad earthing of the electronic card
Check and put right
11. The engine stops while in use for
reasons not due to the safety devices
cutting 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
12. 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)
Replace the panel/board group with one that is known to work;
if the problem does not reoccur replace the faulty group defini-
tively
13. The 25 A fuse cuts in
Faults in the battery charging circuit
Replace fuse (25 A) and check the recharge circuit
14. No audible signal for the “grass-catch-
er 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 be-
ing started if the acknowledgement conditions are not met
Malfunctioning or faulty electronic card
Replace the panel/board group with one that is known to work;
if the problem does not reoccur replace the faulty group defini-
tively
15. The clock does not keep time after the
machine is switched off
Buffer battery flat
Replace