salmson MULTI-VS Installation Et Mise En Service page 9

ENGLISH
8. OPERATING TROUBLE
Make sure that the pump is OFF before doing any
ATTENTION !
work on it.
OPERATING TROUBLE
8.1. THE PUMP FAILS
a) No current:
TO OPERATE
b) The thermistor tripping device has tripped
out, cutting off power:
8.2. THE PUMP RUNS a) Wrong direction of rotation:
BUT DELIVERS TOO
LITTLE b) Pipe obstructed by foreign bodies:
c) Parts of the pump are obstructed by forei-
gn bodies:
d) Air in suction pipe:
e) Suction pipe too narrow:
f) The valve is not open far enough:
8.3. THE PUMP a) Air in pump:
DELIVERS UNEVENLY
8.4. THE PUMP
a) Foreign bodies in pump:
VIBRATES OR IS NOISY
b) Pump not properly attached to its base-
plate:
c) Bearing damaged:
8.5. THE MOTOR a) A phase is open-circuit:
OVERHEATS AND ITS
PROTECTION TRIPS b) The pump is hard to operate: foreign
OUT
bodies in pump:
c) The pump is hard to operate: bearing
damaged:
d) Ambient temperature too highl:
PROBABLE CAUSE
a) Check the fuses, the wiring, and the connectors.
b) Eliminate any cause of overloading of the motor.
a) Check the direction of rotation of the motor and correct it if necessary.
b) Check and clean the pipe.
c) Have Customer Service examine the pump.
d) Make the suction pipe airtight.
e) Install a larger suction pipe.
f) Open the valve properly.
a) Evacuate the air in the pump; check that the suction pipe is airtight.
a) Have Customer Service remove the foreign bodies.
b) Retighten the anchor bolts.
c) Call in Customer Service.
a) Check the fuses, the wiring, and the connectors.
b) Have Customer Service clean the pump.
c) Have Customer Service repair the pump.
d) Provide cooling.
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REMEDY