
Castle Care-Tech Ltd. Engineering
Page A - 4 Appendix A
POWER SUPPLY, etc.
BATTERY
FAULT xxx
Battery Fuse (F4)
failed, OR
Battery not
present, OR
Battery volts low
Note: This indication should be
expected during recharge after a
mains failure.
BAT LOAD
FAIL
Battery Load Test
has failed
Only displays if option selected.
Battery uncharged or capacity
below specification, may need
replacing.
BATTERY
CRITICAL
Battery being
disconnected
Protects battery from deep-
discharge damage during
extended mains failure.
NOTE: System is now powered
down!
MAINS FAIL
xxx
Mains supply failed System detects mains frequency
out of specification, as well as
voltage.
NOTE: 'AC FAIL' timer operative.
FUSE x
FAULT
Fuse identified
failed, OR
Output protected
by fuse drawing
excessive current
x identifies fuse affected:
Fuse 1 = +12v at terminals H
Fuse 2 = +12v at terminals D
Fuse 3 = +12v at terminals E
Fuse 4 = BATTERY 0v
Fuse 5 = +12v at terminals C
Note: Fuse 6 failure will cause SAB
Tamper fault.
LOW VOLTS
xxx
Power supply volts
low
Battery volts below normal
'battery fault' level during mains
failure
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