
Fault Checks
(A) Pump will not start:
(1) Manual Type
ChecktoensurepowerisavailableandtheoutletisswitchedON.
Blownfuseortrippedcircuitbreaker(replace/resetorcallanelectrician).
Ifanextensionleadistted,checkconnection.
Impellerjammed-disconnect from power supply,andensureimpellerisfreetorotate.
Thermalcut-outswitchhasnotreset(wait5minutes).
Ifpumpdoesnotstartfromnewthenthesealhaspossiblystuckduetothelengthoftimeithasbeen
standingsinceitwasmanufactured.Inthiscase,disconnectfrompowersupply,removebottomstrainer
andturntheimpellernutclockwise,thiswillreleasetheinitialfrictiononthesealandoncethepoweris
connectedwillallowthepumptowork.
(2) Auto Type (with oat switch)
Checkallin(1)above.
Floatswitchjammedagainstsumpsidewall.
InsufcientliquidtoplacetheoatswitchintheONposition,i.e.higherthanthehorizontal.
(B) Pump runs, but does not pump water or pumps insufcient water:
Insufcientliquidinsump.
Strainer,impellerand/ordischargepipeworkblocked.
Impellerdamaged.
Airlockindischargepipework.Ensurepumpislledwithwater.
Excessivebackpressureorlift.
(C) Pump will not stop:
(1) Manual Type
Mustbeswitchedoffatthepowersupply.
(2) Auto Type (with oat switch)
Floatswitchispreventedfrommovingtothefullydownposition.
Floatswitchmaybefaulty.
(D) Pump runs for short periods only (the overload protection has tripped):
Someforeignbodyiscloggingtheimpeller.
Theliquidtemperatureistoohigh.
Pumpoperatinginnonsubmergedpositionorwithnowatermovementaroundmotor.
Electricalfault.
Donotrunthepumpdryasthiswilldamagethesealandreducethelifeofthepump.
Where hair, lint or other string-like material may be in the water, the pump should be regularly checked. It might become
necessary sometimes to clean the suction strainer, impeller and/or discharge pipework.
Withsimplecleaningandregularexaminationthispumpshouldgivereliableservice.Intheeventofsealfailure,pollution
ofthepumpedliquidcouldoccurduetoleakageoftheseallubricant.
NOTE:
1. Long extension leads should be avoided as they often have insufcient current carrying
capacity to run electric motors, hence they can cause substantial voltage drop and operating
problems.
2. Minimum voltage at the electric motor must not fall below 216 Volts for single phase, otherwise
motor damage may result which is not claimable under guarantee.
3. If the electrical ttings in your country make it necessary to remove the plug (where tted) from
the lead tted to the motor, care should be taken to ensure that the earth conductor green/
yellow in the lead is properly connected to a good earth. This work should be undertaken by a
suitably qualied person.
4. Expansion and contraction inside the motor due to heating and cooling is vented via the lead.
The lead end must never be sealed off, but must always be open to the atmosphere.
5. ALWAYS disconnect pump from power supply prior to commencing ANY maintenance or adjustment.
NOTE:
If tting an extension lead a QUALIFIED ELECTRICIAN should be consulted to ensure correct rating is
provided. Extension leads are not allowed for permanent installations.