3.696.5275.210
28
Symptom
Cause
Remedy
Generator Water Level is too
High. Generator is in alarm
condition.
Water Feed PAV will not
open.
Check that air supply
pressure is correct.
Check that PAV solenoid
valve is energised.
Operate manual override on
solenoid valve to check
operation of valve.
Manually operate valve
via tank synoptic screen
on controller.
Water level transducer is
damaged and giving false
reading.
Replace water level
transducer. See page 46 of
this manual.
Water feed PAV has failed to
close.
Isolate feed water system
and inspect valve seat for
damage (see appropriate
instruction manual).
Water level transducer is
damaged and giving a false
reading.
Replace level transducer.
See page 40 of this
manual.
Steam from a second
generator is back feeding into
generator shell and
condensing.
Check that non-return valve
is operating correctly.
Contact Spirax Sarco Service
Department.
Generator Pressure is too
low.
Low pressure alarm has
activated.
Plant Steam is not reaching
the Control Valve.
Check that plant steam
supply is not isolated.
Steam inlet Control Valve is
not open.
Check that air supply
pressure is correct.
Check that air is being
supplied to actuator.
Manually operate valve via
tank synoptic screen on
controller.
Condense is not being
removed from heating coils.
Check that steam traps are
operating correctly.
Check that condense
isolation valves are open.
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