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Troubleshooting EHB 11
9 Troubleshooting
Please refer to the following table if the machine does not work properly. It con-
tains potential faults, their causes and remedies.
Malfunction Cause Remedy
Machine not in operation For machines with 230 V:
Input voltage too high (> 300 V)
or too low (< 80 V).
Provide correct voltage; if nec-
essary use an extension cable
with sufficient cross section.
For machines with 115 V:
Input voltage too high (> 150 V)
or too low (< 45 V).
Provide correct voltage; if nec-
essary use an extension cable
with sufficient cross section.
Inverter has switched off due to
excess temperature.
Let machine cool off.
Power cable interrupted. Check power cable, have it re-
placed if defective. *
* Have the machine repaired by your WACKER representative.
Blocked percussion system High grease resistance due to
very low temperatures.
Allow machine to warm up in
warm environment (e.g. heated
rooms).
Seizing of moving parts (e.g.
due to prolonged dry running).
Have defective components re-
placed. *
Drill is stuck/jammed Too much borer dust in bore-
hole.
Pull drill bit out off borehole and
remove dust from drill bit.
Interfering reinforcing steel. Redrill borehole.
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