Braun NUVL603C service manual Barrier will Not Operate

Troubleshooting Diagnosis Chart

FUNCTION		POSSIBLE CAUSE	REMEDY
10.00	10.11 Poor plug connections		Check harness connectors A1 and A2, E1, N1,
			N2, E1, F1 and F2.
BARRIER WILL
NOT OPERATE	10.12	Faulty barrier actuator motor or	Check power at motor. Adjust or replace actuator
UP OR DOWN
		actuator out of adjustment	if necessary.
WITH HAND-
HELD PENDANT
OR OVERRIDE	10.13 Bad power and ground		See 1.00
SWITCHES
11.00
BARRIER	11.11	Faulty Outer Barrier switch	Check diagnostic LCD for Outer Barrier Switch
OPERATES WITH
OVERRIDE			status. Adjust or replace switch as necessary.
SWITCH BUT
WILL NOT GO	11.12	Barrier occupied	Remove weight from barrier. See Outer Barrier
UP WITH HAND-			Occupied Calibration on page 5.
HELD PENDANT
12.00	12.11	Faulty Pressure Transducer	Check Pressure Transducer. Adjust or replace
BARRIER			as necessary. See Ground Sense Calibration on
OPERATES			page 5.
WITH OVER-
RIDE SWITCH	12.12	Stow switch out of adjust-	Check diagnostic LCD for Stow switch status.
BUT WILL NOT		ment or defective	Adjust or replace as necessary.
GO DOWN WITH
HAND-HELD	12.13	Full Out switch out of	Check diagnostic LCD for Full Out switch status.
PENDANT
		adjustment or defective	Adjust or replace as needed.
13.00	13.11 No power going to switches		Check power on connector A1, pins 1 and 2.
SWITCHES
DO NOT	13.12	Faulty wiring	Check continuity of wires from switches to connector
CHANGE
			A2.
STATE IN
DIAGNOSTIC	13.13	Faulty connections	Check for proper connections on each switch and
MODE
			on each connector on the harnesses. Replace con-
			tact if necessary. See diagram on following page.
14.00	14.11	Faulty wiring	Check for proper wiring to door openers.
DOORS
DO NOT
OPEN
15.00	15.11	Lift Out switch out of adjustment	Lift not stowed fully. Adjust lift out switch or
		or defective	replace.
DOORS
DO NOT
CLOSE

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