GB
- 33 -
12. Troubleshooting guide
The table below contains a list of fault symptoms and explains what you can do to remedy the problem 
if your equipment fails to work properly. If the problem still persists after working through the list, please 
contact your nearest service workshop.
Fault Possible cause Remedy
The equipment 
does not start
-   Correct starting procedure not follo-
wed
-   Sooted or damp spark plug
-   Incorrect carburetor setting
-   Follow the instructions for starting
-   Clean the spark plug or replace it 
with a new one
-   Contact an authorized customer 
service outlet or send the equip-
ment to ISC GmbH
The equipment 
starts but does 
not develop its full 
power
-   Incorrect choke lever setting
-   Soiled air fi lter
-   Incorrect carburetor setting
-   Set the choke lever to „
“
-   Clean the air fi lter
-   Contact an authorized customer 
service outlet or send the equip-
ment to ISC GmbH
The engine does 
not run smoothly
-   Incorrect electrode gap on the 
spark plug
-   Incorrect carburetor setting
-   Clean the spark plug and adjust the 
electrode gap, or fi t a new spark 
plug
-   Contact an authorized customer 
service outlet or send the equip-
ment to ISC GmbH
Engine smokes ex-
cessively
-   Incorrect fuel mix
-   Incorrect carburetor setting
-   Use the correct fuel mix (see fuel 
mixing table)
-   Contact an authorized customer 
service outlet or send the equip-
ment to ISC GmbH
 The reprinting or reproduction by any other means, in whole or in part, of documentation and papers 
accompanying products is permitted only with the express consent of the iSC GmbH. 
 Subject to technical changes
Anl_SA_GC_BC_52_I_AS_SPK8.indb   33Anl_SA_GC_BC_52_I_AS_SPK8.indb   33 11.01.2017   09:16:2411.01.2017   09:16:24