Davey Aquashield MAX Packaged Ultra Violet Water Treatment System - Manual (Page 22)

22
STERIFLO ®
Principle. a ballast (choke) provides the correct voltage and current for
the lamp(s). the circuit board monitors the current to the lamp and if it is
not present, illuminates the red alarm light and sounds the alarm buzzer (a
“squealing” noise). An orange light indicates the power is on.
a) UV LAMP OUT, NO ORANGE “ON” LIGHT, NO ALARM
1. no mains voltage.
2. Internal fuse failed.
3. check mains power connections inside power supply.
b) uV lamP FlIcKerIng, alarm on
1. Failed lamp.
2. Incorrect lamp or ballast fitted.
c) uV lamP out, alarm on
1. lamp failed.
2. Poor connection to lamp (check/clean connector/lamp pins).
3. Ballast failed (unlikely).
d) lamP on, alarm on
1. Faulty circuit board.
e) lamP out, alarm oFF
1. loose connection or faulty circuit board, possibly short in lamp circuit.
Part Numbers
a) lamp
GPH550N2/W
b) sleeve
tt600
c) o-rings
All models S24x3N70 (2 per sleeve)
d) lamp connector
all models s486
WARNING: When servicing or attending your Steriflo®, always ensure power
is switched off and lead unplugged. Electrical connections should be serviced
only by qualified persons. If the supply cord is damaged, it must be replaced
by the manufacturer, its service agent or similarly qualified persons in order
to avoid a hazard.
Care should also be taken when servicing or disassembling the unit and
associated pipework to avoid possible injury from pressurised water. Unplug
power, relieve pressure by opening a tap on the discharge side of the unit and
allow any water in the unit to cool before attempting to dismantle.