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23
Bosch Power Tools
F 016 L70 481 | (10.10.08)
Troubleshooting
The following chart lists problem symptoms, possible causes and corrective action, if your machine
does not operate properly. If these do not identify and correct the problem, contact your service
agent.
f
Warning: Switch off and remove plug from mains before investigating fault.
Problem
Possible Cause
Corrective Action
Machine fails to operate
Power turned off
Turn power on
Mains socket faulty
Use another socket
Extension cable damaged
Inspect cable, replace if dam-
aged
Fuse faulty/blown
Replace fuse
Possible clogging
Check underneath the machine
and clear out as necessary (al-
ways wear gardening gloves)
Motor protector activated
(AVR 1100 only)
See below*
Raking/Verticutting too low for
the conditions
Increase height of cut
Obstructed rotor
Clear obstruction (always wear
gardening gloves)
Blocked side grilles
Clear debris from the outside of
the side grilles
Grassbox full
Empty the grassbox regularly
Machine functions
intermittently
Extension cable damaged
Inspect cable, replace if dam-
aged
Internal wiring of machine
damaged
Contact Service Agent
Worn/Missing tines/blades
ALR 900:
Fit replacment (see “Remov-
ing/Fitting Raker Tines”)
AVR 1100:
Contact Service Agent
Conditions too wet
Increase height of cut (see “Rak-
ing/Verticutting Tips”)
Too much debris on the ground See below*
Possible clogging
Check underneath the machine
and clear out as necessary (al-
ways wear gardening gloves)
Raking/Verticutting too low for
the conditions
Increase height of cut
Grass too long
Cut grass
Very uneven surface
Increase height of cut
Grassbox full
Empty the grassbox regularly
OBJ_BUCH-835-002.book Page 23 Friday, October 10, 2008 8:40 AM
