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WWW.FUHR.DE
multitronic
881/881GL/ServoAccess
In the event that your FUHR multitronic lock should fail to function properly, please refer to the table below to find and rectify
the fault.
IMPORTANT! The entire FUHR multitronic lock has been subject to extensive inspections by the manu-
facturer. If faults are found once installed, the installation should be checked to begin with. The FUHR
multitronic lock must never be opened forcefully using the lever-handle! All components have been
designed for a smooth running operation. The FUHR multitronic lock has not been designed to straigh-
ten out warped or distorted doors! Careful and proper installation and maintenance of the door is a
prerequisite for durable, trouble free operation.
11 Troubleshooting
Type of fault Signal Possible cause of fault Fault repair
The lock does not
lock completely.
Green and red LEDs
flash alternately. Or the
lock beeps five times
after the attempt to lock.
The locking mechanism doesn’t
run smoothly.
Open the lock using the cylinder
key. (Not with force via the
lever-handle!)
The door is warped. Check the door installation and
possibly adjust.
The keeps have been adjusted
too tightly.
Readjust keeps/ regulate less con-
tact pressure.
The locking bolts are obstructed. Check as to whether all keeps
are freely accessible and have the
correct position.
A profile cylinder without „FZG“
marking has been installed.
Install a non-restricted FZG free-
running profile cylinder (free-
running cylinder for locks with gear
mechanism; refer to chapter 5.1).
The lock does not
lock or unlock.
Green and red LEDs
light up.
Data connection between the
electronic drive unit and the con-
trol unit is interrupted.
Check if the spring-loaded tappet
contacts are correctly poled (note
+/-; refer to chapter 4.2.2 and
chapter 4.2.6).
Are the spring-loaded tappet con-
tact pins meeting the flat surface
contact when the door is closed
over?
One or more cables are
damaged.
Check all cables and plug-and-
socket connections.
Tappet contacts and contact
surfaces have no contact.
Lubricate the contact surfaces (refer
to chapter 9.1).
The lock does not
lock.
Green LED lights up. Reed switch is not triggering.
Magnet is out of range.
Readjust the magnet and/or door.
Check the clearance.
Green LED flashes
slowly or green + red
LED flah slowly
Day latch or permanently-open
function is activated.
Deactivate the day latch or perma-
nently-open function.
No LED lights up Power connection between the
electronic drive unit and the con-
trol unit has short-circuited.
Check if the spring-loaded tappet
contacts are correctly poled (note
+/-; refer to chapter 4.2.2 and-
chapter 4.2.6). Connect the cable
properly to the green multi-functio-
nal jack (refer to chapter 6.3).
The power supply of the mains
adapter is not given or to low.
Check the output voltage of the
mains adapter (12 V DC).
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