ZP3-ECU Extinguishing Control Unit Maintenance Manual
15
Chapter 3
Fault finding – ECU faults
Summary
This chapter provides details of faults identified by the fire alarm control panel as
a general fault on the ECU and how to correct them.
Note:
Fault messages on the fire alarm control panel display depend on the
control panel used. The examples included in this chapter are for the ZP3 Fire
Alarm Control Panel. For other control panels, refer to the documentation for the
control panel.
Content
ECU main board fault LEDs 16
General faults 17
Manual extinguishant release faults 18
Extinguishant actuator faults 19
Extinguishant pressure faults 20
Fire bell fault 21
Extinguishant discharge siren fault 22
Extinguishant pressure verification switch fault 23
Power fault 24
Status unit fault 25
