Troubleshooting - Dunsch DU25428B Manual De Usuario

14. TROUBLE SHOOTING
PROBLEM
Unit won't start or starts but
will not run.
Unit starts, but engine has
low power.
Engine sputters.
No power under load.
Runs erratically.
Smokes excessively.
15. WARRANTY
- This product is warranted for a 24-month period effective from the date of purchase by the first user.
- This warranty covers all material or production flaws excluding: batteries, chargers, defective parts subject
to normal wear & tear such as bearings, brushes, cables, and plugs, or accessories such as drills, drill bits,
saw blades, etc. ; damage or defects resulting from maltreatment, accidents or alterations; nor the cost of
transportation.
Damage and/or defects resulting from inappropriate use also do not fall under the warranty provisions.
-
We also disclaim all liability for any bodily injury resulting from inappropriate use of the tool.
-
Any transportation costs shall always be borne by the customer, unless agreed otherwise in writing.
-
At the same time, no claim can be made on the warranty if the damage of the device is the result of
-
negligent maintenance or overload.
- Definitely excluded from the warranty is damage resulting from fluid permeation, excessive dust
penetration, intentional damage (on purpose or by gross carelessness), inappropriate usage (use for
purposes for which the device is not suitable), incompetent usage (e.g. not following the instructions given
in the manual), inexpert assembly, lightning strike, erroneus net voltage. This list is not exhaustive.
GB
PROBABLE CAUSE
Incorrect starting procedures.

Incorrect carburetor mixture
adjustment setting.
Fouled sparking plug.

Empty fuel tank.

Primer bulb was not pressed

enough.
Fuel filter is plugged.

Incorrect lever position.

Dirty spark arrester screen.

Dirty air filter.

Incorrect carburetor mixture

adjustment setting service dealer.
Incorrect carburetor mixture

adjustment setting.
Air filter is blocked.

Old or improperly mixed fuel.

Incorrect carburetor mixture

adjustment setting.
Old or improperly mixed fuel.

Air filter is blocked.

Fouled sparking plug.

Incorrectly gapped sparking plug.

Blocked spark arrester.

Dirty air filter.

Incorrect carburetor mixture

adjustment setting.
Incorrect fuel mixture.

36
CORRECTIVE ACTION
Follow instructions in the User

Manual.
Have carburetor adjusted by an

Authorized Service Centre.
Clean/gap or replace plug.

Fill fuel tank with properly

mixed fuel.
Press primer bulb fully and

slowly 10 times.
Replace the fuel filter.

Move to RUN position.

Replace spark arrester screen.

Remove, clean and reinstall

filter.
Have carburetor adjusted by an

Authorized Service Centre.
Have carburetor adjusted by an

Authorized Service Centre.
Replace or clean the air filter.

Drain gas tank/add fresh fuel

mixture.
Have carburetor adjusted by an

Authorized Service Centre.
Drain gas tank /add fresh fuel

mixture.
Replace or clean the air filter.

Clean/gap or replace plug.

Clean/gap or replace plug.

Clean or replace spark arrester.

Clean or replace air filter.

Have carburetor adjusted by an

Authorized Service Centre.
Use properly mixed fuel (40:1

mixture).