181
Service Manual – SW5500, FLOORTEC R 985
29 - Engine System, LPG
Troubleshooting
Trouble
Possible causes
Remedy
The engine does not start
Fuel is not reaching the carburettor
Check that the LPG tank safety valve is open
The oil level is low. The Oil Alert sensor (S7) is
activated.
Top up with the recommended oil to the proper
level
The spark plug (SPK) is damaged, dirty or the
distance between the electrodes is wrong
Correct the distance between the electrodes and
replace the spark plug
Batteries (BAT) flat
Recharge with a proper battery charger.
Emergency push-button (SW0) pressed
Check and release the emergency push-button.
Safety valve closed
Turn the key in the ignition again
-
Insufficient time waited at ignition for the
electronic system to reboot
Engine start relay (ES3) faulty
Replace
Engine start relay (ES5) faulty
Replace
Starter motor fuse (F6) blown
Replace
Key circuit fuse (F2) open circuit
Replace
The ignition key switch (KEY) is not working
Replace
The engine is overheating,
shutting down, and activating the
rectifier temperature sensor
Fan relay (ES6) faulty
Replace
Fan fuse (F7) blown
Replace
Fan (M7) faulty
Replace
The engine loses power or stops
during operation.
The filter element or elements are clogged
Clean or replace the filter elements
Poor LPG fuel quality
Replace the LPG tank
The fuel filter is clogged, the carburettor is broken,
the start system is broken, the valves are locked,
etc.
Replace or repair the faulty components as
necessary (take the engine to an authorized
Honda service centre)
Pressure regulator dirty
Clean / replace
The machine shuts down
Battery fuse (F0) blown
Replace
The machine generates an alarm
when powered (see
)
Alternator fuse (F4) blown
Replace
Charging system contactor (ES10) faulty
Replace