Troubleshooting - Nilfisk-ALTO FLOORTEC R 870 Service Manual

Service Manual – Floortec R 870

Troubleshooting

Trouble
The engine does not start
The engine loses power or
stops during operation.
The display shows the LOU
code.
The display shows the HIU
code.
Possible causes
The fuel valve lever is closed
The air control is in standard position.
The oil level is low. The Oil Alert sensor is activated.
The spark plug (SPK) is damaged, dirty or the distance
between the electrodes is wrong
The spark plug (SPK) is wetted with fuel
The spark plug (SPK) does not produce a spark.
The fuse (F3) and/or (F0) is open.
The electromagnetic switch (ES2) is faulty
The batteries are discharged.
The emergency push-button has been pressed.
The filter element or elements are clogged
Low quality of the fuel
The fuel filter is clogged, the carburettor is broken, the
start system is broken, the valves are locked, etc.
The working conditions are disadvantageous for the
batteries.
The battery charge is excessive.
Engine System - Petrol
Remedy
Open the fuel lever
Turn the lever to cold start position.
Top up with the recommended oil to the proper
level.
Correct the distance between the electrodes and
replace the spark plug
Dry the spark plug and reinstall it. Start the
engine with the choke lever turned to MAX
position.
Check or replace the spark plug.
Check/replace the fuses.
Replace
Recharge with a proper battery charger.
Check and release the emergency push-button.
Clean or replace the filter elements
Drain the tank and refuel with fresh petrol
Replace or repair the faulty components as
necessary (take the engine to an authorized
Honda service centre)
Decrease the main broom pressure on the floor.
Avoid driving uphill for long.
Turn off the working lights.
If the problem persist, maybe it is necessary to
calibrate the engine rpm.
Turn off the engine each time the machine is
stopped.
If the problem persist, maybe it is necessary to
calibrate the engine rpm.
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