EN
8.0 TROUBLESHOOTING
PROBLEM
CAUSE
FAILURE
• Power disconnected or switched off
TO START
• Circuit breaker tripped
• Line voltage
• Electrical failure
• Burnt capacitor/motor
• Motor internal thermal over load
activated or inoperative
• Pump seizure
POOR
• Isolation valve closed/defective valve
OR NO
• Poor hose connection/system
VACUUM
LEAKS
• Low oil level
• Oil contaminated
• Pump worn out/damaged
• Oil type used unknown
• Gas ballast valve open
• Pump overheated
MILKY OIL
• Water vapor mixture in oil
COLOUR
• Oil contaminated
DARK OIL
• Water vapor mixture in oil
COLOUR
• Oil contaminated
LEAKING
• Seals hardened or worn
OIL
• Oil mist accumulated from exhaust
running within casing
• Careless oil filling
• Backflow from gas ballast
NOISY
• Loosen pump housing screws
PUMP
• Oil level too low
• Pump worn out
ACTION
• Connect to power source/switch on
• Reset breaker
• Check local voltage
• Check motor/switch
• Replace capacitor/motor
• Switch on after cooling if still
inoperative replace motor
• Repair pump or replace cartridge
• Open isolation valve/replace valve
assy
• Check all vacuum connections
• Add or change oil
• Change oil
• Replace cartridge
• Replace with JAVAC low viscosity oil
or equivalent grade oil
• Close gas ballast valve
• Allow to cool or reduce heat exposure
• Open gas ballast
• Change oil
• Open gas ballast
• Change oil
• Service pump/new seals
• Occurs in normal use, cleaning may
be needed, monitor sight glass or
open case to check
• Wipe housing & pump with a dry cloth
• Wipe housing & pump with a dry cloth
• Tighten with socket spanner
• Add/replace oil
• Replace cartridge/pump
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