Sharp WH-T36E User manual

SHARP SERVICE MANUAL
ELECTRIC WATER HEATER
MODEL WH-T36E
WH-T39EP
WH-T46E
In the interests of user-safety (Required by safety
regulations in some countries) the set should be restore
to its original condition and only parts identical to
thosespecifiedshouldbeused.
SHARP CORPORATION
TABLE OF CONTENTS
NAME OF PARTSAND SPECIFICATIONS ......................................................................
EXTERNAL DIMENSION ...................................................................................................
CAUTION FOR USE .........................................................................................................
HOW TO USE ...................................................................................................................
CIRCUIT DIAGRAM ...........................................................................................................
INSTALLATION ADVICE ...................................................................................................
POWER SUPPLY INSTALLATION ....................................................................................
SHOWER SET ..................................................................................................................
REPLACING METHOD FOR MAIN PARTS .......................................................................
TROUBLESHOOTING .......................................................................................................
CIRCUIT DIAGRAM (PCB-A) ............................................................................................
SERVICE PARTS LIST ......................................................................................................
Page
2
3
3
4
5
5-8
8-9
10
10-15
16
17
18-24

2
NAME OF PARTS
SPECIFICATION
Model
Voltage(V)
Ratedfrequency (Hz)
Powerconsumption (W)
Water supply
Watersupply temperature control
Min. Water Pressure (MPa)
Max. Water Pressure (MPa)
Dimension (W x D x H) (mm.)
Weight(kg)
50
Note : Water temperature is around 25 C. Water flow rate : 2.3 liters/min.
One Point system
Electroniccontrol water temperature 50C(approximate)
0.02 (0.21 Bar)
0.34 (3.39 Bar)
245 x 112 x 380
2.7
220
: 1 MPa = 10.2 kg/cm2.
Main Breaker
ELB Checker Button
Shower Stand
Water Volume Knob
Push ON-OFF Button
ELB Lamp
Power Lamp
Control Lamp
Temp. Control Knob
Shower
Shower Hose
Body
Main Water Valve
Earth Ground
Breaker Angle Support
WH-T36E WH-T39EP WH-T46E
3,500 4,500
Temp. Level Lamp

3
EXTERNAL DIMENSION
Front
Fig. 1
Neverinstall water valve orfaucetat hot water outlet.
Never spray water to the electric water heater, do not put wet towels on it.
Nevercoverthe shower set with hand ortowels,donot fold down shower hose.
CAUTION FOR USE
Watervalve
Water
outlet
Water inlet
Fig. 2
Fig. 3
Fig. 4
(Unit in mm.)
380
245
Side Back
112
178
380

4
BEFOREUSE
Theelectrichome shower unit must earthed.
Special skill is required. Never try to repair the unit by yourself.
1. Turn on the MAIN WATER VALVE.
2. Switch on the MAIN BREAKER.
3. Push up the breaker angle support, if it is down.
4. Pressthe PUSH ON-OFFBUTTON,roomtemperature water will flow in and the ELB lamp lights up.
5. Turnonthe WATERVOLUMEKNOB to set the preferable water flow rate(seedetail“TEMPERATURE
ADJUSTMENT”).
6. Turn on theTEMP. CONTROLKNOBto set the preferable temperature, indicationTEMP. LEVELLAMP
andPOWERLAMPlightsup,thehotwaterwill flow out (see detail“TEMPERATUREADJUSTMENT”).
7. After use, press the PUSH ON-OFF BUTTON to turn off water. For next time, just press the
PUSHON-OFF BUTTON, the volume and temperature ofwaterwillbe as first set.
Note
In case of electricity cut off or suspension of water supply, turn off theTEMP. CONTROL KNOB, press
thePUSH ON-OFF BUTTONand turn offMAINBREAKER beforeleavinga bathroom.
TEMPERATUREADJUSTMENT
1. TEMP.CONTROLKNOB.
1.1 TheTEMP.CONTROLKNOBis at “OFF” position, the
watertemperature will remainatroom temperature.
1.2 When the TEMP. LEVELLAMP (yellow) light up : Low level
TEMP. LEVEL LAMP (orange) light up :Medium level
TEMP. LEVEL LAMP (red) light up :High level
1.3 If water temperature islowerthanthe setting, the CONTROL
LAMP will blink. You may need to adjust the WATER
VOLUMEKNOBto decrease flow rate.
1.4 The CONTROL LAMP and POWER LAMP lights up,ifwater
temperature is to set.
1.5 When CONTROL LAMP to blink and POWER LAMP will
gooff,ifwatertemperatureis equal or higher than set.
HOW TO USE
2. WATERVOLUMEKNOB.
Turning the WATERVOLUMEKNOB clockwise to increase water volume.
Turning the WATER VOLUME KNOB counterclockwisetodecreasewater volume.
3. PUSH ON-OFF BUTTON.
Press the PUSH ON-OFF BUTTON (the ELB lamp lights up) the hot water flow out. To close, repress
thePUSHON-OFFBUTTON.
“ON” status : Button is lower than unit cover.
“OFF” status : Button is as high as unit cover.
ELB Checker
ELB Lamp
Control Lamp
Power Lamp
TEMP.Control
Knob
Push ON-OFF
Button
TEMP. Level Lamp

CIRCUIT DIAGRAM
5
INSTALLATION ADVICE
1. BEFORE INSTALLATION
Besureof sufficient water pressure.
Minimum water pressure : 0.02 MPa (0.21 Bar).
Maximum water pressure : 0.34 MPa (3.39 Bar).
Water pressure measurement. Please see illustration; water must flow out of the pipe beyond
2.3 meters above the faucet.
2. INSTALLATION
1. The body unit installation.
The body unit must be installed to wall as illustration.
About 2.3 meters
Fig. 5
Fig. 6

6
The shower installation must be over 1.50 meters from the ground.
Fig. 7
3. Install electric water heater on wall.
Drill 2 holes in the wall with size 6 millimeters, 25 millimeters in depth, distant 178 millimeters
Put fitting in the holes.
Drivescrewsinto the upper fitting and leave screws about 8-10 millimetersinlength.
Hang the equipment with the screws and mark the lower points to drill the other 2 holes.
Drill 2 holes and put fittings, then drive all screws firmly.
Fig. 10
Screw Fig. 8
2. Removing the body unit cover.
Remove the screw at the bottom of the unit.
Remove the front plate first at the bottom.
25 mm.
6 mm.
Fig. 9
Over 1.50 meters
178 mm.

7
4. The unit cover assembly.
Remove the TEMP. CONTROL KNOB and PUSH ON-OFF BUTTON as illustration.
Push unit cover on to body unit until they are locked.
Drive screw cover unit and body unit. Insert the TEMP. CONTROL KNOB and
PUSH ON-OFF BUTTON.
6. Shower stand installation :
After installing shower stand, the shower set should be in the lower level with body unit.
Fig. 13
Temp. Control Knob
Body Temp. Control Knob
Push ON-OFF Button
Screw
Push off the body
Push on at the top
Fig. 11
Fig. 12
Shower
Shower spacer
Shower hose
5. The shower assembly.
Turn joint the shower hose counterclockwise with the shower.
Joint

8
3. WATER PIPE
1. Turn the joints between body unit, the WATER VOLUME KNOB and SHOWER HOSE manually.
Neveruseother tools to avoid breaking plastic parts.
2. When driving screws, use power less than 40 kgf.cm.
3. Pipinginstallation (as illustration).
Fig. 14
Main breaker
Bathroom
Fig. 15
POWER SUPPLY INSTALLATION
1. Be sure to cut off the main power supply switch every time before starting any electrical work.
Useinsulateddoublewire gage size at least 4 square millimeters. (Model WH-T36E, WH-T39EP)
andsize6 square millimeters (Model WH-T46E) for power supply line.
Connecting supply line from the main distribution control unit to the cut off breaker.
(Thisbreaker should be installed outsidethebathroomand connected permanently).
Water inlet
Filter
O-ring
Valve
Length of water inlet hose at least 15 cm.
Filter
Shower hose Water volume
Shower

9
2. Connecting supply line can be done in 2 ways (see illustration below) which are punching on the
lateral rubber grommet at the side or the back of cover unit.
Punching at the back of cover unit.
Fig. 16
Punching at the side of cover unit.
TooIing for assembly
Min 30 cm.
Ground
Ground rod Fig. 18
5. Make sure that the grounding resistance should be less than 5 Ohm.
6.Incase grounding resistance is over 5 Ohm the additional ground rods may be needed, where as the
distance between both rods is at lest ground rod length.
4. How to install the ground rod.
Aseparately provided ground rodshouldbe piled down intothehigh moisture ground.
Theground rod should be atleast30centimeters placed underneath thegroundlevel.
The ground rod is not less than 16 millimeters diameter and 240 centimeters in length.
LN
LN
Strip out the wire insulator, connect it to the ELB BREAKER terminal, Live wire (high potential) must
be connected to the “L” and Neutral line to the “N”, secure firmly with a screwdriver.
(Torque of about12kgf.cm.shouldbe applied).
3. The line of “L” and “N” must be carefully and correctly connected to the corresponding pole;
otherwise, it may affect the circuit and consequently causes damage to the unit or electrical harm.
Fig. 17
Torque of about 12 kgf. cm.
L
N
50 mm.
20 mm.
12 mm. 30 mm.
LN

10
REPLACINGMETHODFORMAINPARTS
1. Turn out the joint body between the body with the shower hose manually. Never use other tools to
avoid breaking plastic parts.
REMOVE OF SHOWER HOSE
Fig. 20
SHOWER SET
By turning shower cover, water flow can be adjusted in 5 types.
Fig. 19
JET
COMFORT
FOAMY
SPRAY
FRESHEN
Mark shows the patterns of
water flow at the chose position
LEFT RIGHT
Body
Shower hose

11
1.Removethescrew holding the body with the back cover.
2. Lift the body first at the bottom.
3. Now the body is free.
REMOVE OF BODY
Fig. 21
Body
Screw Back cover
1.Removethebodyinaccordancewith“REMOVEOFBODY”.
2. Remove 2 screws holding the micro SW. with the Push SW. housing.
3. Remove 2 screws holding the Push SW. ass’y with the back cover.
4. Now the Push SW. ass’y is free.
REMOVE OF PUSH SWITCH ASS’Y
Screw
Back cover
Push SW. knob
Push SW. housing
MicroSW.
Screw
Fig. 23
Fig. 22
REMOVE OF TRIAC
Triac
Screw
Triac lead wire brown
White lead wire
Breaker lead wire
Red lead wire
Back cover
Heater tank
1.Removethe body in accordance with
“REMOVEOFBODY”.
2. Disconnect 3 lead wires from the triac.
3.Remove2 screws holding with the
heater tank ass’y.
4. Now the triac is free.

12
Fig. 25
1.Removethebodyinaccordancewith“REMOVEOFBODY”.
2. Disconnect Reed SW. lead wires from the PCB-A
3.Remove 2 screws holding the Reed SW. from the body valve.
4. Now the Reed SW. is free.
REMOVE OF REED SWITCH
Fig. 24
Reed SW.
Screw
Bodyvalve
Reed SW. lead wire
1.Removethebodyinaccordancewith“REMOVEOFBODY”.
2. Remove the push SW. ass’y in accordance with “REMOVE OF PUSH SWITCHASS’Y”.
3.Removethereed SW. in accordance with“REMOVEOFREEDSWITCH”.
4. Detach 2 clamping springs holding the heater tank ass’y with the body valve ass’y and the water outlet.
5.Remove 2 screws holding the body valveass’y.
6.Remove2 screws holding the water outlet.
7.Nowthebody valve ass’y and the water outlet are free.
REMOVE OF BODY VALVE ASS’YAND WATER OUTLET
Heater tank
Water outlet
Screw
Clamping spring
Body valve ass’y
Back cover
Screw

13
1.Removethebodyinaccordancewith“REMOVEOFBODY”.
2. Pull out all the lead wires from the PCB-A.
3.Remove 3 screws holding the PCB-A with the PCB housing.
4. Now the PCB-A is free.
REMOVE OF PCB-A
Back cover
PCB housing
PCB-A
Screw
Fig. 27
1.Removethe triac in accordance with “REMOVE OF TRIAC”.
2. Remove the body valve ass’y and the water outlet in accordance with “REMOVE OF BODY VALVE
ASS’Y and WATER OUTLET”.
3. Remove the screw to L-Wire Earth from heater tank ass’y.
4.Removethescrewholding cable tie from the heater tank support.
5.Remove2 screws holding triac lead wire (brown)andthermostatlead wire (yellow) with the
heater tank ass’y.
6. Remove 2 screws holding the thermostat with the heater tank ass’y.
7. Remove the thermistor ass’y from the heater tank ass’y.
8. Now the heater tank ass’y is free.
REMOVE OF HEATER TANK ASS’Y
Triac lead wire brown
Screw
Back cover
Thermostat
Screw
Lead wire brown
Screw
L-Wire Earth
Thermostat lead wire yellow
Thermostat
lead wire red
Lead wire yellow
Screw
Cable tie
Heater tank support
Thermistor ass’y
Fig. 26
Heater tank

14
REMOVE OF VOLUME SW. ASS’Y
Screw
Back cover
L-Wire volume SW.
Volume SW. support-E
Volume SW. ass’y
Nut
Fig. 28
Note : For disassembly
Pull the lead wire from PCB-A.
Fig. 29
Volume SW.
Blue lead wire
Orange lead wire
White lead wire
Green lead wire
PCB-B
L-Wire for PCB-A CN2
1. Remove the body in accordance with “REMOVE OF BODY”.
2. Detach the lead wire for PCB-A CN2 from the PCB-B
3. Pry the claws of volume SW. support-E and remove the PCB-B
4. Removethe nut holding the volume SW. angle with the volume SW. support-E.
5. Remove2screwsholding volume SW. support-E with the back cover.
6. Pull out the lead wire from the PCB-A
7. Now the volume SW. ass’y is free.
Volume SW. angle

15
Fig. 29
1. Remove the body in accordance with “REMOVE OF BODY”.
2. Removesplitpin holding the breaker angle support with the breaker.
3. Remove2screwsholding 2 breaker lead wires with the breaker.
4. Remove2screwsholdingthebreakerwith the back cover.
5. Now the breaker is free.
REMOVE OF BREAKER
Split pin
Breaker
Back cover
Breaker angle support Screw
Breaker lead wire

TROUBLESHOOTING
Problem Possible cause Corrective action
Push SW. ON-OFF is defected. Check or replace mechanical parts in
Push SW. ON-OFF.
CheckElectricalleakagepoint from
any lead wire or replace the ELB
breaker.
Open Main SW.
ResetThermostat.
Checkorreplace Body valve ass’y.
ReplaceReed SW.
ReplaceVolumeSW.
ReplacePCB-A.
Replace Triac ass’y.
Replace PCB-A .
ReplacePCB-A.
ReplacePCB-A.
Checkand clean O-ring.
Checkandclean Shower course.
OpenMain watervalveto increase.
OpenMainwater valve.
OpenWater volume.
ELBbreaker iscutoff ordefected.
Main SW. is closed.
Thermostattrip (Cut off).
Bodyvalveass’y is defected.
Reed SW. is defected.
Volume SW. ass’y is defected.
PCB-Ais defected.
Triac ass’y is defected.
PCB-Ais defected.
PCB-Ais defected.
PCB-Ais defected.
O-ringis clogged.
Shower ass’y is clogged.
Mainwater valve is opentoolow.
Mainwater valve is closed.
Water volume is closed.
Push SW. ON-OFF is defected.
Water is not hot.
- ELB lamp is light up.
- Power lamp is not light up.
- Control lamp is not light up.
Water is not hot.
- ELB lamp is not light up.
- Power lamp is not light up.
- Control lamp is not light up.
Problem Possible cause Corrective action
Water is not hot.
- ELB lamp is light up.
- Power lamp is light up.
- Control lamp is blink or
light up.
Water is not hot.
- ELB lamp is light up.
- Power lamp is light up
- Control lamp is not light up.
Waterflow out from Shower
ass’y is too low.
Water is not flow out from
Showerass’y.
Turn theTemperaturecontrol
knobtohigh level but water
is not hot.
Check or replace mechanical parts in
Push SW. ON-OFF.
16

17
CIRCUITDIAGRAM (WH-T36E,T39EP, T46E)
PCB-B
PCB-A

18
PARTS CODE
(FEC)
1-1 7R0094 INSTRUCTION BOOK 1
1-2 7R0016 SET PACKING CASE 1
1-3 7R0026 CARTON BOX 1
1-4 7R0034 NAME PLATE 1
1-5 7R7102 WIRING DIAGRAM STICKER 1
1-6 7N0042 LOWER PAD 1
1-7 7N0051 UPPER PAD 1
2-1 7R7013SET BODY SET 1
2-2 7N7122 TEMP. CONTROL KNOB 1
2-3 7R7032 POWER SW. BUTTON 1
2-4 7N7053 ELB KNOB 1
2-5 7N704 ELB COMPRESSION SPRING 1
2-6 7N158 ELB CHECKER 1
2-7 7A707 E-RING 1
2-8 7N706 SPLIT PIN 1
2-9 7N6182 BREAKER ANGLE SUPPORT 1
2-10 7K102 WATER OUTLET 1
2-11 7D9241 PLUG 1
2-12 7N1012 BACK COVER 1
2-13 7D601 AC LINE CLAMP 1
2-14 7N608 RUBBER CAP 1
2-15 7G427ASET PUSH SW. SET 1
2-16 7A220 CLAMPING SPRING 1
2-17 7R4101ASY BODY VALVE ASS'Y 1
2-18 7H5041 PCB HOUSING 1
2-19 7R621 VOLUME SW. SUPPORT-E 1
2-20 7R1031SET HEATER TANK SET 1
2-21 7K1361 HEATER TANK SUPPORT 1
2-22 7K137 CABLE TIES 1
2-23 7N907SET SHOWER SET 1
SERVICE PARTS LIST
PRINTING & PACKAGING MATERIAL
MECHANICAL PARTS
REF. NO DESCRIPTION Q'TY PRICE
Model : WH-T36E

19
PARTS CODE
(FEC)
2-24 7A901ASY SHOWER HOSE ASS'Y 1
2-25 7A910 SHOWER STAND 1
2-26 7G801ASY WATER INLET BODY ASS'Y 1
2-27 7A912 O-RING FIXER 1
3-1 7A605 BREAKER 220V. 30A. 1
3-2 7R5021 PCB-B 1
3-3 7R512 LEAD WIRE FOR PCB-A CN2 1
3-4 7R4041ASY VOLUME SW. ASS'Y 1
3-5 7D2101 MICRO SW. 1
3-6 7R5011 PCB-A 1
3-7 7R5112 LEAD WIRE FOR PCB-A CN1 1
3-8 7N6141 TRIAC LEAD WIRE BROWN 1
3-9 7R6102 BREAKER LEAD WIRE BLACK 1
3-10 7R128ASY THERMISTOR ASS'Y 1
3-11 7G6131 THERMOSTAT LEAD WIRE YELLOW 1
3-12 7N1261 THERMOSTAT 85oC1
3-13 7G127ASY TRIAC ASS'Y 1
3-14 7R405 REED SW. ASS'Y 1
3-15 7N509 L-WIRE EARTH 1
SERVICE PARTS LIST
MECHANICAL PARTS
ELECTRIC PARTS
REF. NO DESCRIPTION Q'TY PRICE

PARTS CODE
(FEC)
1-1 7R0094 INSTRUCTION BOOK 1
1-2 7R0017 SET PACKING CASE 1
1-3 7R0027 CARTON BOX 1
1-4 7R0035 NAME PLATE 1
1-5 7R7102 WIRING DIAGRAM STICKER 1
1-6 7N0042 LOWER PAD 1
1-7 7N0051 UPPER PAD 1
2-1 7R7014SET BODY SET 1
2-2 7N7123 TEMP. CONTROL KNOB 1
2-3 7R7033 POWER SW. BUTTON 1
2-4 7N7054 ELB KNOB 1
2-5 7N704 ELB COMPRESSION SPRING 1
2-6 7N158 ELB CHECKER 1
2-7 7A707 E-RING 1
2-8 7N706 SPLIT PIN 1
2-9 7N6182 BREAKER ANGLE SUPPORT 1
2-10 7K102 WATER OUTLET 1
2-11 7D9241 PLUG 1
2-12 7N1012 BACK COVER 1
2-13 7D601 AC LINE CLAMP 1
2-14 7N608 RUBBER CAP 1
2-15 7G427ASET PUSH SW. SET 1
2-16 7A220 CLAMPING SPRING 1
2-17 7R4101ASY BODY VALVE ASS'Y 1
2-18 7H5041 PCB HOUSING 1
2-19 7R621 VOLUME SW. SUPPORT-E 1
2-20 7R1031SET HEATER TANK SET 1
2-21 7K1361 HEATER TANK SUPPORT 1
2-22 7K137 CABLE TIES 1
2-23 7N9071SET SHOWER SET 1
SERVICE PARTS LIST
PRINTING & PACKAGING MATERIAL
MECHANICAL PARTS
REF. NO DESCRIPTION Q'TY PRICE
Model : WH-T39EP
20