Bosch ALR 900 - Manual (Page 23)

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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