
contd...
PROBLEM PROBABLE CAUSE SOLUTION
Pumpisnormalbutno
purewater(Pleasemake
suretherestrictorisok
&thetemperatureof
thepumpisok)
1.Pre-ltersareblocked
2.ROmembraneisblocked
3.Pumphasnopressure
4.Flushsolenoidvalvedonotshuto
5.Connectorsorpipesareblocked
6.Flowrestrictorisblocked
1.ReplacethePPlter
2.Replacethemembrane
3.Repairthepump
4.Replacesolenoidvalve
5.Checkwholewaterroutestep
bystep
6.Replace&checkupits
locaon.
Leakageinpumphead
1.Sediment&pre-carbonareblocked.
2.Thewasherofthepumpheadis
ageingorblockedbythedirtinside
3.Flowrestrictorisblocked
4.Theboltsofthepumpheadisloose.
1.Replacethelters&repairthe
pump
2.Repairpumphead&oen
replacePPtoavoidblockin
pump.
3.ReplacetheFR
4.Tightenthebolts&checkup.
Pumpworks
intermientlyduring
autoushing.
1.Sediment&pre-carbonareblocked.
2.Thewasherofthepumpheadis
ageingorblockedbythedirtinside
3.Flowrestrictorisblocked
4.Theboltsofthepumpheadisloose.
1.Enhancesourcewater
pressureorreplacePPlter.
2.Checkuporrepairrelave
circuit.
Tankisfullbutwater
cannotowout(pls
checkiftankballvalve
isopenorblocked)
1.LowsourcewaterpressureorPP
blocked
2.Badcircuit
1.Enhancepressureto
0.045Mpa,checkairchamber
iftheseisleakageornot,&
replaceinme.
2.Replacepostlter
3.Replaceorrepairfaucettap.
Drainwaterkeep
owingwhileRO
systemstopworking
1.Withnoenoughpressureinthetank
2.Postlterblocked
3.Faucettapblocked
1.Replacevalve
Rosystemstarttoo
frequently,can’tstop
whentankisfullor
restartaeramoment.
1.Inletvalvecannotshutofully
2.Circumuence
1.RepairorreplaceHPS
2.Repacevalve
3.Adjusttankpressure&
HPS
Someoaterexistedin
purewater
1.HPSproblem
2.Checkvalve’sproblem
3.Toohighpressureintank
1.Re-ushthepostlter
2.Flushthetankorreplace
Muchnoisefromthe
pump
1.Thepostcarbonlterisn’t
cleanenough.
2.Floaterfromtank
1.Shortentheworkingme
2.Replacethesha
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