Page 57
EWCIE Technical Manual
15 Trouble Shooting
Resolution of all suspected faults MUST only be carried out by suitably qualified technical
operatives.
Problem Solution
Power Fault illuminated
Check PSU output voltage it should be set to 27.6V
(Nominal).
Check mains
Check the battery has been connected properly
Refer section 10 for fault diagnosis
Earth Fault LED illuminated on
Amplifiers
Check all input and output cabling and wiring assemblies
for short to ground
System Fault LED illuminated
Ensure correct panel configuration
Check DIP switch settings
Check cable connections between control board and
amplifiers
General Fault illuminated
Check amplifier 100Vac speaker line and Strobe line.
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