Bosch Appliances DS7445I, DS7447E manual General System Problems Continued, Symptom, Probable Cause

General System Problems (Continued)

Symptom		Probable Cause		Possible Solution
#87 display = Battery Trouble	a)	The battery failed a battery test.	a)	If there has just been a power failure, wait at
				least two hours for the battery to recharge then
				perform a System Reset to re-test the battery
				and clear the error.
	b)	The battery is defective.	b)	Replace the battery.
	c)	The wiring to the battery is	c)	Check wiring.
		disconnected.
#87 display = Zone Trouble	a)	A zone is not responding to the control	a)	Check wiring to the zone.
		panel.		or
				If the zone is not to be used, remove from
				programming.
	b)	The zone is programmed for “Trouble
		on Open” and the loop is open.	b)	If using Normally Closed contacts, re-program
				zone for alarm on open.
	There is a power failure and the panel is			or
	operating on battery backup. If there is a			If using Normally Open contacts and trouble on
	general power failure, wait for the power to			open is desired, check for opens in the loop.
	return. If there is not a general power failure			Remove wiring and place an EOL resistor across
	in the building.			the zone to eliminate a problem with the control.
				If the trouble goes away, the problem is in the
				wiring or in a contact connected to the zone.
#87 display = AC Power Failure	a)	The transformer is unplugged.	a)	Plug the transformer in.
	b)	The wiring from the transformer is	b)	Check the wiring.
		defective.
	c)	The circuit to the transformer is off or	c)	Check the circuit and circuit breakers.
		defective.
	d)	The transformer is defective.	d)	Replace the transformer.
	e)	In some cases, the transformer may	e)	Connect to a circuit that is not controlled this
		be connected to a circuit controlled by		way.
		a switch or a circuit breaker that is
		periodically turned off.
Fire Alarm displays “000”.	The Fire Alarm was caused by the “A” key.		Use the System Reset command to clear the
				display.
Fire Trouble, no zone number.	When in Commercial Fire Mode, a ground		See #87 Ground Fault display for solution.
	fault causes this display.
Fire Trouble ____________	Fire zone wiring problems.		If you try to disable the zone by reprogramming it,
zone number. Dirty			you need to reset the control by either entering then
			exiting programmer’s mode, or removing then
			restoring power to the control panel.
Chamber ____________	A multiplex smoke detector has failed its		Clean or replace the dirty smoke detector or
zone number.	internal sensitivity test.		chamber. DO NOT USE WATER TO CLEAN THE
			CHAMBER.

Page 92 P/N: F01U035325-01 Copyright © 2007 Bosch Security Systems, Inc. DS7400Xi (4+) Reference Guide