Husqvarna DC 900 Operator's Manual page 20

Problem
Dust comes out in
the air from the air-
flow hatch.
Unusual noises come
from the product.
The pressure in the
pressure tank is less
than 7 bar.
There is no pressure
or not sufficient pres-
sure in the pressure
tank.
Error codes
The error codes are shown on the display in the
electrical enclosure. Refer to
3 for information about where the electrical enclosure
is on your product. For error codes that are not shown
in the table, write down the error code and the serial
Error code
SAFF
oCF
oHF
oLF
oPF1
oPF2
20
Cause
The primary filters are damaged or incorrect-
ly installed.
There are loose screws and nuts.
There is a fault with the bearings.
The airflow hatch is damaged.
The filter for the water separator is dirty or
damaged.
The compressor filters are dirty or damaged.
There is a leakage in the tubes.
The control valve is damaged.
The pneumatic system is damaged.
Product overview on page
Cause
There is a safety system fault.
Inertia, too much workload or me-
chanical blockage causes overcur-
rent.
The temperature of the product is too
high.
The motor current is too high.
The frequency drive output lost 1
phase.
The motor lost 3 phases.
Solution
Do a check of the primary filters. Replace if it
is necessary, refer to
filters on page 16 .
Tighten all screws and nuts.
Speak to an approved service agent.
Do a check of the airflow hatch. Replace if it
is necessary.
Clean the filter for the water separator. Re-
place if it is necessary.
Clean the compressor filters. Replace if it is
necessary.
Speak to an approved service agent.
Speak to an approved service agent.
Do a check of the pneumatic system.
number of the product. Stop the product and speak to
your local Husqvarna representative.
Note:
The codes "nST" and "FSt" are not error
codes. If they show on the display, the product operates
correctly.
Solution
Speak to your local Husqvarna repre-
sentative.
Make sure that there is no blockage
in the fan.
Make sure that the ambient tempera-
ture is not too high.
Do a check of the frequency drive
ventilation.
Do a check of the motor load.
Do a check of the setting of the motor
thermal protection. Do a check of the
motor load. Wait for the motor to be-
come cool before restart.
Do a check of the connections from
the frequency drive to the motor.
To replace the primary
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