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WASHING MACHINE
TOP-LOADING TYPE
Basic Name : WA50F9A6DS*
(WA-F900A PJT)
Basic Code : WA50F9A6DSW/A2
Model Name : WA48H7400AW
(WA-7000HA PJT)
Model Code : WA48H7400AW/A2
SERVICE Manual
WASHING MACHINE (TOP-LOADING) CONTENTS
1. Safety Instructions
2.FeaturesandSpecifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference
CoNTeNTS
1. Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1. Safety instructions for service engineers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. FeaturesandSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-1. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2-2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-3. Detail features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-4. Optionsspecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3-1. Tools for disassembly and reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3-2. Standard disassembly drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4-1. Error modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4-2. Corrective actions for each error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4-3. The installation for leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5. PCB diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5-1. Main PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5-2. Detailed Manual for Connector and Relay Terminal Part - Main PCB . . . . . . . . . . . . . . . . . . . . . . . . 28
5-3. Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5-4. Detailed Manual for Connector Terminal Part - Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6. Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6-1. Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7. Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7-1. Model Number Naming Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1. Safety InStructIonS
1-1. Safety InStructIonS for ServIce engIneerS
es etoo se et e o o in inst ctionstoope atet ep o ctco ect an sa e top e entpossi eacci ents
an a a s i ese icin .
ot peso sa et s o s a nin an a tion a e se int esa et inst ctions.
Hazards or unsafe practices that may result in severe personal injury or death.
WarnIng
Hazards or unsafe practices that may result in minor personal injury or property damage.
cautIon
WarnIng Before ServIcIng
ense icin e ect ica pa tso a nesses a es eto isconnectt epo e p e o ese icin .
4 ai in to oso a es tina is o e ect ics oc .
onota o cons e stoconnectse e a app iancestoasin epo e o t etatt e
sa eti e.
4 e eisa is o fi e etoo e eatin .
en e o in t epo e co a es eto o t epo e p enp in t ep
o t eo t et.
4 ai in to oso a a a et ep an es tinfi eo e ect ics oc .
ent e as in ac ineisnot ein se a es eto isconnectt epo e p
o t epo e o t et.
4 ai in to oso a es tine ect ics oc o fi e eto i tnin .
onotp aceo se aso ine t inne s a co o o ot e a a eo e p osi es stancesnea t e as in
ac ine.
4 e eisa is o e p osionan fi eca se o e ect icspa s.
Safety Instructions _ 1
WarnIng WHILe ServIcIng
ec i t epo e p an o t eta e a a e attene c to ot e ise e a e .
4 a t ep aceiti e iate .
ai in to oso a es tine ect ics oc o fi e.
o p ete e o ean sto o ei n ate ia o t e o sin i in an connectionpa ts.
4 is i p e enta is o fi e etot ac in an e ect ica a a ..
enconnectin i es a es etoconnectt e sin t e e e antconnecto san c ec t att e a e
co p ete p ope .
4 tapeis se instea o t econnecto s it a ca sefi e etot ac in .
a es eto isc a et e po e te ina s e o esta tin t ese ice.
4 ai in to oso a es tina i o ta ee ect ics oc .
en ep acin t e eate a es eto astent en ta te ens in t atitisinse te intot e ac et- eate .
4 notinse te intot e ac et- eate itto c est e an ca sesnoisean e ect ic ea a e.
WarnIng after ServIcIng
ec t e i in .
4 ns et atno i eto c esa otatin pa to as a pene pa to t ee ect ica a ness.
ec o an ate ea a e.
4 e o atest n o t e as in ac ine sin t estan a co sean c ec et e t e eisan ate
ea a et o t e oo sectiono t epipes.
onota o cons e sto epai o se icean pa to t e as in ac ine
t e se es.
4 is a es tinpe sona in an s o tent ep o ct i eti e.
itsee st at o n in isnee e eto ate o oist e a es eto n
o n in i es. o n in
ec t e o n in o t epo e o t et an a itiona o n ittoa eta ic ate te ina
pipe.
4 ai in to oso a es tine ect ics oc etoe ect ic ea a e.
nnin a o n in i e
- ista o n in i e coppe i e t oo t eeti esa o n t etap.
- o connectt e o n in i etoacoppe p ate it c n e t eea t ina
p ace it a oto oist e.
onotconnectt e o n in i etoa aspipe p astic ate pipeo te ep one
i e. e eisa is o e ect ics oc o e p osion.
c
oppe p ate
2 _ Safety Instructions
cautIon Before ServIcIng
onotsp in e ate ontot e as in ac ine i ect enc eanin it.
4 is a es tine ect ics oc o fi e an a s o tent ep o ct i eti e.
onotp acean containe s it ate ont e as in ac ine.
4 t e ate isspi e it a es tine ect ics oc o fi e. is i a sos o tent e
p o ct i eti e.
onotinsta t e as in ac ineina ocatione pose tosno o ain.
4 is a es tine ect ics oc o fi e an s o tent ep o ct i eti e.
onotp essacont o tton sin as a ptoo o o ect.
4 is a es tine ect ics oc o a a etot ep o ct.
cautIon WHILe ServIcIng
en i in a a ness a es etosea itco p ete sono i i canente .
4 a es et att e onot ea en o ceise e te .
ec i t e eisan esi et ats o st at i i ente e t ee ect icpa tso a nesses.
4 an i i asente e intoapa t ep aceito co p ete e o ean e ainin oist e o it.
o nee top acet e as in ac ineonits ac o se icin p poses p aceas ppo t s ont e oo an a it
o nca e soitssi eisont e oo .
4 onot a it o nonits ont. is a es tint einsi et a a in pa ts.
Safety Instructions _ 3
cautIon after ServIcIng
ec t easse e stat so t epa ts.
4 o isa oo ti etoinspect o o . e ie a connectionsan i in inc in o ntin a a e.
ec t eins ation esistance.
4 isconnectt epo e co o t epo e o t etan eas et eins ation esistance et eent epo e p
an t e o n in i eo t e as in ac ine. e a e st e eate t an en eas e it a
e e
ec et e t e as in ac ineis e e t e oo it especttot eo i ina position
o t e as in ac inep io tose ice.
oin t isno i e ce o t enee o c sto e issatis actionan e oca .
4 i ationscans o tent e i eti eo t ep o ct.
4 _ Safety Instructions
2. Features and speciFications
2-1. Features
Features escription
en a entsan an ets ets pe c ean. e eatcapacit
The Great Capacity
ea eseno oo o a o et o o c eane as .
a et as es oa s ent an o et o o t ancon entiona top
oa e s.Sp a e ate a o s ete entto ist i tee en an penet ate
a et TM
a ics aste an eepe . a et e i e si p o e c ean inessan
a ance a icca e.
epo e to an ean t in O i ect- i ein e te oto e i e spo e
i ttot e as e t o a a ia espee e e si e oto . e t ess
oto
i ect- i e oto ene atesa i e spinspee o o ee ecti e iet
ope ation. e as e a so as e e o in pa ts eanin e e epai s.
sepa ateno e as eena opte t atsp a s ate e a sot att e
istS o e
insec c eise ecti ee en it as a a o nto ate .
VRT