Troubleshooting - ST. SpA NJ 92 Série Manuel D'utilisation

7. TROUBLESHOOTING

PROBLEM
1. W hen the ignition key is turned
to «ON», the indicator light or the
dashboard remain switched off
2. W ith the ignition key turned to
«START» the light flashes and
the starter motor does not run
3. W ith the ignition key turned
to «START» the light or the
dashboard come on, but the
starter motor does not run
4. W ith the ignition key turned to
«START» the starter motor runs
but the engine does not start
5. S tarting is difficult or the engine
runs erratically
6. W eak engine performance
during cutting
7. T he engine shuts down whilst
working.
8. T he cutting means do not
engage or do not stop promptly
when they are disengaged
LIKELY CAUSE
The safety device of the electronic
circuit board has cut in due to:
– b adly connected battery
– b attery terminals crossed
– fl at battery
– blown fuse
– w et circuit board
– s tarting conditions have not
been met
– i nsufficiently charged battery
– m alfunction on the starter relay
– i nsufficiently charged battery
– f aulty fuel supply
– f aulty ignition
– f aulty carburetion
– f orward speed too high in relation
to cutting height
The safety device of the electronic
circuit board has cut in due to:
– the safety devices have cut in
– p roblems with the engagement
mechanism
17
SOLUTION
Turn the ignition key to the «STOP»
position and look for the cause of
the problem:
– c heck connections (see 3.4)
– c heck connections (see 3.4)
– r echarge the battery (see 6.2.3)
– r eplace the fuse (10 A)
(see 6.3.5)
– d ry using warm air
– c heck that all starting conditions
are met (see 5.2.a)
– r echarge the battery (see 6.2.3)
– c ontact your Dealer
– r echarge the battery (see 6.2.3)
– c heck the level in the tank
(see 5.3.3)
– o pen the fuel stopcock (if fitted)
(see 5.4.1)
– c heck the fuel filter
– c heck that spark plug cap is
securely fitted
– c heck that the electrodes are
clean and have the correct gap
between them
– c lean or replace the air filter
– e mpty the fuel tank and refill with
fresh fuel
– c heck and replace the fuel filter if
necessary
– r educe the forward speed and/or
raise the cutting height
(see 5.4.5)
Turn the ignition key to «STOP»
and look for the cause of the
problem:
– c heck that all starting conditions
are met (see 5.2.b)
– c ontact your Dealer