Subject to change · 40719700 · 1217 · EN
Page 25
www.argo-hytos.com
15.2 Fault table
Problem / fault
Possible cause
Elimination
Electric motor does not
turn on during
commissioning
›
Electrical cable or mains plug
defective
›
Have the cable replaced by a skilled electrician
›
Supply voltage missing
›
Establish the power supply or activate the electric fuse
›
ON/OFF switch defective
›
Replace ON/OFF switch
›
Motor defective
›
Replace motor (repair at the manufacturer's premises)
›
Pump defective
›
Replace pump (repair at the manufacturer's premises)
›
Viscosity too high (medium)
›
Warm up the oil
›
Filter element contaminated
›
Let the motor cool down, clean any contaminated
ventilation slits
›
Pump blocked
›
Replace pump (repair at the manufacturer's premises)
Volume flow is clearly
too low
›
Filter element contaminated
›
Replace filter element
›
Suction strainer contaminated
›
Replace / clean suction strainer
›
Viscosity too high
›
Warm up the medium
›
Suction height too large
›
Adjust suction height
›
Leak on the suction side
›
Replace suction hose or seal connection points
(re-tighten them)
›
Wear of the pump
›
Replace pump (repair at the manufacturer's premises)
Operating noise too loud
›
Filter element contaminated
›
Replace filter element
›
Suction strainer contaminated
›
Replace / clean suction strainer
›
Viscosity too high
›
Warm up the medium
›
Suction height too large
›
Adjust suction height
›
Leak on the suction side
›
Replace suction hose or seal connection points
(re-tighten them)
›
Wear of the pump
›
Replace pump
›
Filter unit standing on a
vibration-sensitive surface
(e.g. sheet metal)
›
Improve site conditions
Pump does not suck
›
Leak on the suction side
›
Replace suction hose or seal connection points
(re-tighten them)
›
Suction strainer clogged
›
Clean / replace suction strainer
Table 7: Fault table
