
LNGT USER INSTRUCTIONS ENGLISH 00083107 02-08
Page 39 of 48
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FAULT SYMPTOM
Pump overheats and seizes
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Bearings have short life
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Pump vibrates or is noisy
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Mechanical seal has short life
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Mechanical seal leaks excessively
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Pump requires excessive power
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Pump loses prime after starting
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Insufficient pressure developed
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Insufficient capacity delivered
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Pump does not deliver liquid
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PROBABLE CAUSES POSSIBLE REMEDIES
z
z
Motor running on 2 phases only. Check supply and fuses.
z z
z
Motor running too slow. Check motor terminal box connections and voltage.
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