DoorKing 1812 Plus - Manual (Page 41)

1812-161-L-12-11 39
• The system is not wired in series with the resident phone line. Check the PHONE IN terminals (1 & 2)
and the PHONE OUT terminals (4 & 5). Dial tone is heard on the
1812 speaker.
Symptom Possible Solution(s)
• Check for a short to ground behind the circuit board.
• Check for pinched wires near the door hinge.
• Check for 16-volt power shorted to a conduit.
• Check for a phone line shorted to ground.
• Check that the phone wires are twisted.
• Check that all wires, speaker, keypad, etc., are isolated from ground.
• Check that the cabinet is properly grounded. Be sure case ground (terminal 3) is not used as a low
voltage
common.
• Check for excessive voltage drop on 16 VAC power.
• Check phone line with telephone test set.
• Remove the PHONE IN and PHONE OUT wires from the 1812 terminal strip. Connect the PHONE IN
wires to the PHONE OUT wires. If the noise is still present, bad PHONE IN or PHONE OUT wires.
• Remove 16.5 VAC wires from the terminal strip. Check house phones. If noise goes away, 16.5 VAC
wires are probably grounded. Replace wires.
• Check internal wires, switch wires, battery wires for any pinches or shorts.
• Check that the by-pass switch is not set to by-pass mode.
• Do Not Disturb time zone may be enabled. Turn Do Not Disturb off or change time zone boundaries.
• Call forward feature enabled or call forward time zone is turned on. Turn off call forward and call
forward time zone. Change call forward time zone boundaries.
• Voltage drop in 16 VAC supply. Check voltage at terminals 17 & 18.
• Disconnect PHON OUT wires from terminals 4 & 5. Connect test telephone to terminals 4 & 5. If test
telephone rings, problem is with phone out wiring. If test phone does not ring, circuit board may be
at
fault.
• Check telephone company demarcation (interface) device placement. 1812 must be wired so that the
C.O. wires exiting the demarcation device are connected to the C.O. terminals on the bypass switch.
Check the wiring diagram.
• Disconnect the PHONE OUT wires and connect a test telephone to the PHONE OUT terminals (4 & 5).
If the 1812 cannot communicate with the test phone, PHONE IN and PHONE OUT wires may be
connected backwards. Check wiring and reconnect.
• Switch the wires on the PHONE OUT terminals (4 & 5).
• Switch wires on PHONE IN terminals (1 & 2) if using the call forward or preprogrammed dialing out
features.
• Answer incoming call feature is disabled. Turn answer incoming call feature on (# of rings 2.3.9).
• Number of rings to answer may be programmed too high. Reprogram number of rings to answer.
• Forgetting to press # first.
• Access code is time zone restricted and the access code time zone is enabled. Turn access code time
zone off, reprogram time zone boundaries or reprogram “simple” access code without a time zone.
• Excessive voltage drop on 16.5 VAC line.
• Auto relay activation time zone is enabled. Turn off auto relay time zone or reprogram the time zone.
• Access code used was programmed under a hold open relay code. Reprogram access code into a
momentary activation relay code (2.5.2).
• A hold command was sent to the relay from the resident’s phone. Deactivate the relay using the
resident’s
phone.
• Switch the wires on the PHONE IN terminals.
• Using the wrong attention number. Re-program attention number (2.3.3).
Buzz or noise on the line.
Buzz on telephone line.
Phones in home will not
ring.
Phones in home ring, but
no communication
occurs.
System will not activate
relays. Phones do not
generate a tone.
System generates tone
when granting access to a
visitor, but will not work on
regular phone line.
System will not answer
when called from the
resident’s phone.
System will not answer
when called from a remote
location.
Electric strike locks on or
gate operator holds open.
Access code will not work.