Possible Faults, Causes And Solutions; Technical Data - Espa SILEN I Manual De Instrucciones

8. POSSIBLE FAULTS, CAUSES AND SOLUTIONS

1) Pump does not prime.
2) Pump supplies scant flow.
3) Pump noisy.
4) Pump does not start.
5) Motor makes sound but does no start.
1 2 3 4 5 POSSIBLE PROBLEM
X X Air entry trough suction line
Inadequate airtightness of filter cover Clean the filter cover and verify con- diction of rubber
X
X X Motor turning direction reversed
X Defective mechanical seal
X X Excessive suction height
Incorrect voltage
X X X
X No water in prefilter
X Suctioning out of water
X
Filter clogged
Diameter of suction line smaller than
X X
required
X Discharge clogged
X Incorrect pump attachment
X Foreign body in pump
X Thermal relay tripped
X Lack of power
X Motor blocked

9. TECHNICAL DATA

Liquid temperature: ...................... 39ºF - 104ºF
Ambient temperature: .................. 32ºF - 104ºF
Storage temperature: ................... 14ºF - 122ºF
SOLUTIONS
Verify condition of connectors and gaskets of suction line
gasket
Reverse 2 phases of the supply
Change mechanical seal
Excessive suction height
Verify the voltage specified on the nameplate and that of
the mains
Fill prefilter with water
Set suction in correct position
Clean filter
Correctly dimension suction line
Inspect filter and discharge line
Attach pump correctly
Clean pump and inspect its filter
Reset thermal relay
Reset the fuses
Remove the motor and call the Technical Service
Ambient relative humidity, max.: ............... 95%
Motor class I.
Other data see Figure 2.
11
EN