Technical data

MENV-MINI4-02 Issue2 June 2006

SECTION 5 – FAULT FINDING

General

A fault is indicated by the illumination of the SYSTEM FAULT LEDs and a buzzer tone. Specific faults

are identified by additional fascia indicators, e.g. zone fault. The buzzer tone varies depending on the

fault and may, or may not, be silenceable.

Fault Latch

If an intermittent fault exists, it is possible to make all fault indications latch, to help identify problems. To

activate fault latch, select option DIL switch 1 to ON.

Zone Fault Indications

Identify the nature of the zone fault with the following method. When a zone fault is present:

Press and hold:

Button 1 to identify open circuit fault

Button 2 to identify short circuit fault

Button 3 to identify detector removed fault

If the zone fault indication remains when any of the buttons are pressed then that is the fault identified. If

the indication clears when the button is pressed then that fault is not present.

Steady zone fault LED = Zone in test or disabled

Pulsing zone fault LED = Zone in fault condition