Troubleshooting - Husqvarna T 4000 Petrol Workshop Manual

8.1 Troubleshooting

Problem Cause
The engine does not There is no fuel.
start.
The fuel does not go into the engine.
There is no spark.
There is no battery power.
The coupler switch is in ON position.
The ON/OFF switch is defective.
The starter motor does not turn the engine
over.
The throttle wire is damaged or not connec-
ted to the engine.
The fan switch is on.
There is too much fuel in the fuel mixture.
The fan impeller does The clutch is worn or broken.
not engage.
There is no battery power.
The electrical connections are damaged or
not connected.
The engine and the The hose is not connected.
fan operates but there
The hose is clogged or blocked.
is no suction.
There is no dust bag.
There is fuel leakage.
The engine and the The hose is damaged.
fan operates but un-
The prefilter is clogged.
satisfactory suction.
The HEPA filter is clogged.
The top cover is loose.
There is dirt in the lid.
Dust is blown from The prefilter or/and the HEPA filter is incor-
engine. rectly assembled or damaged.
Unusual noise. N/A
1331 - 001 -
8 Troubleshooting
Solution
Fill the fuel tank.
Replace the fuel tank. Do a check of the fuel
hose and the regulator.
Refer to the engine manual.
Replace with a fully charged battery.
Turn the coupler switch to the OFF position.
Replace the ON/OFF switch.
Do a check of the fuse. If it is necessary, re-
place the fuse.
Replace the throttle wire.
Turn the fan switch to off position.
Start the product without the choke.
Do a check of the clutch. If it is necessary, re-
place the clutch.
Replace with a fully charged battery.
Replace the electrical connections.
Connect the hose.
Clean the hose.
Install a dust bag.
Make sure that the gasket at the top and the
bottom of the fuel tank seals correct.
Replace the hose.
Clean the prefilter. If it is necessary, replace
the prefilter.
Replace the HEPA filter.
Adjust the top cover.
Clean the lid.
Adjust or replace the prefilter or/and the
HEPA filter.
Do servicing on the product.
Troubleshooting - 27