Service manual

Troubleshooting
V Series Service Manual 3–5
Denied a. Card reader needs cleaning. a. Clean the card reader head using a cleaning
card for magnetic stripe card readers.
b. Outside wire harness is
damaged or disconnected.
b. Check the outside wire harness. If it’s
damaged, replace the wire harness.
c. Card reader or keypad reader
has failed.
c. Replace the card reader or keypad reader.
d. Foreign object is inserted in
the card reader.
d. Remove the object or replace the card
reader.
e. Battery pack is faulty. e. Check the battery pack. Replace it, if
necessary.
f. Circuit board is
malfunctioning.
f. Replace the circuit board.
g. Circuit board failed for an
unknown reason.
Note:
If the above condition
exists, the key override may be
used to access the door. If the
lock has no key override, call
your local BEST representative.
g. Replace the circuit board.
h. Inside wire harness is
disconnected from the motor
or is damaged.
h. Check the inside wire harness.
i. Self-aligning trim is
overtightened.
i. Loosen the self-aligning trim.
Green 4 short
tones
Granted
after
delay
Battery is low. Change the battery pack. For more information,
see Replacing batteries on page 2-36.
Red &
green
Denied Battery is very low. Change the battery pack.
Green
stays
on
Denied a. Communication token was
used.
a. Wait 1 minute for the lock communications
to automatically expire, or use any token
again to turn off communications.
b. Circuit board switches are in
the ON position.
b. Remove the trim and set the switches to the
OFF position. For more information, see To
remove the inside and outside trim: on
page 2-38.
Red Denied a. Sounder is damaged. a. Replace the card reader or keypad reader.
b. Circuit board is
malfunctioning.
b. Replace the circuit board.
Granted a. LEDs are damaged. a. Replace the card reader or keypad reader.
b. Circuit board is
malfunctioning.
b. Replace circuit board.
LEDs Sounder Access Possible causes include… You should…