Problem
Steps to do im-
mediately
Possible cause
Solution
The product does not start
when the ON/OFF switch is
set to "1".
Set the ON/OFF
switch to "0".
If there is a red light on the
PRCD, the current is discon-
nected.
Push the RESET button on the
PRCD.
If the PRCD disconnects the current
again, speak to an approved Husq-
varna service center.
The product stops.
There is a fault with the cur-
rent source. The current is
disconnected by Elgard.
Do a check of the current source.
The drill bit is blocked. The
current is disconnected by
Elgard.
Turn the drill bit right and left, use a
wrench. Carefully remove the prod-
uct from the drill hole.
Too high load causes over-
load of the motor. The cur-
rent is disconnected by El-
gard.
Make sure that the drill bit can be
turned easily in the drill hole.
If there is a red light on the
PRCD, the current is discon-
nected.
Push the RESET button on the
PRCD.
If the PRCD disconnects the current
again, speak to an approved Husq-
varna service center.
The product does not con-
tinue into the surface, de-
creases in speed and stops.
The diamond segments are
blunt.
Sharpen the diamond segments
with a SiC grind stone.
Unwanted material collects
around the hole during oper-
ation.
The water pressure is too
low.
Increase the water pressure. Refer
to
Technical data on page 18
.
The diamond segments on
the drill bit are pulled out of
their bond.
There are much vibration in
the product during the oper-
ation.
Use correct load when you operate
the product.
There is leakage of gear oil.
Sealings are worn out and
must be replaced.
Speak to an approved Husqvarna
service center.
There is leakage of water
from the hole on the water
connection ring.
The shaft seals are defect.
Speak to an approved Husqvarna
service center. Make sure to always
use clean water.
The product does not oper-
ate smoothly.
Decrease the
force.
Too high load causes over-
load of the motor.
Use less force when you drill.
Transportation and storage
• Pull out the plug from the mains outlet before
transportation or storage of the product.
• Remove the drill bit before transportation or storage
of the product. This is to prevent damage to the
product and the drill bits.
• Keep the product in a locked area to prevent access
for children or persons that are not approved.
• Keep the product in a dry and frost-free area.
• Safely attach the product during transportation to
prevent damage and accidents.
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Summary of Contents for DM400
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