Sharp WH-236E Service Manual Download Page 1

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SHARP SERVICE MANUAL

ELECTRIC WATER HEATER

MODELS

WH-236E
WH-239EP
WH-246E

SHARP CORPORATION

TABLE OF CONTENTS

PARTS IDENTIFICATION AND SPECIFIC INFORMATION ..............................................

EXTERNAL DIMENSION ...................................................................................................

CAUTION FOR USE ..........................................................................................................

HOW TO USE ....................................................................................................................

WIRING DIAGRAM ............................................................................................................

INSTALLATION ADVICE ....................................................................................................

POWER SUPPLY INSTALLATION .....................................................................................

SHOWER SET ...................................................................................................................

REPLACING METHOD FOR MAIN PARTS ......................................................................

TROUBLESHOOTING .......................................................................................................

CIRCUIT DIAGRAM (PCB-1) .............................................................................................

SERVICE PARTS LIST ......................................................................................................

Page

5-8

8-10

11-15

18-24

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 those

specifi ed should be used.

Summary of Contents for WH-236E

Page 1: ...USE WIRING DIAGRAM INSTALLATION ADVICE POWER SUPPLY INSTALLATION SHOWER SET REPLACING METHOD FOR MAIN PARTS TROUBLESHOOTING CIRCUIT DIAGRAM PCB 1 SERVICE PARTS LIST Page 2 3 3 4 5 5 8 8 10 10 11 15 16 17 18 24 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 those specified should be use...

Page 2: ...oximately 25 o C and flow rate is 2 3 liters min 220 50 2 4 3 500 Single point Electronic control automatic constant temperature approximately 50 o C Maximum 0 02 MPa 0 21 Bar 0 34 MPa 3 39 Bar 236 x 378 x 86 IP25 4 500 Main breaker ELB lamp Power lamp Heater lamp 1 MPa Megapascal 10 2 Kilograms Square centimeter Power cord and ground wire Temperature control knob Shower head Shower stand Shower h...

Page 3: ...e event of thunder and lightning storm turn off the main breaker to prevent the damage that may occur on this appliance 8 In the event that ELB light green is shut off while electric water heater is operating lift ELB switch up completely However if ELB light green still off turn off this appliance by press the Power SW button then contact your SHARP service facility or SHARP dealer 9 Close superv...

Page 4: ... level lamp ELB checker button Heater lamp Power lamp ELB lamp BEFORE USE The installation work is to be done by the Authorized SHARP Dealer The electric home shower unit must earthed Special skill is required Never try to repair the unit by yourself 1 Open the main water valve from the home main water pipe 2 Open the main breaker switch 3 Pull the ELB breaker to activate the heater electrical sys...

Page 5: ...ter pressure Water shall overflow at the end of the tube within 2 3 meters above the faucet 2 INSTALLATION THE UNIT 2 1 Preparing installation area The unit must be mounted to the wall in a vertical position only See in the picture Leave this unit away from the wall for both sides more than 200 millimeters About 2 3 meters Fig 5 Fig 6 The minimum height of 1 50 meters to the lower edge of the unit...

Page 6: ...anchors into the holes Screw the top wall anchors leave screw length around 8 10 millimeters and hang the unit on the screw then marked the position in order to drill another 2 holes at the bottom drill the holes and install the rest of wall anchors then fasten all of 4 screws 2 4 Assemble the cover with the heater Assemble the cover from the bottom of the heater and push tight on the top of cover...

Page 7: ...o 2 levels Connect to the unit Connect to the shower head Fig 13 3 PIPING INSTALLATION 1 Connection point between the unit and the water volume knob and twist the shower hose by hands until it tight Do not use any tools during assembly because it may cause the damage to plastic components 2 Tighten the connection into the thread located at the bottom of the water volume knob Force gauge do not exc...

Page 8: ... wire connection to the unit can be done by 2 methods as illustrated Drill a small hole at the rubber to insert the wire on side or at the rear of the unit Peel the wire and connect to the ELB checker by connecting the high voltage cable to the terminal L and connect neutrons wire into the terminal N Use screwdriver to tighten the wires Force gauge approximately 12 kgf cm If the wires are connecte...

Page 9: ...g process 4 Ground resistance must be less than 5 ohm 5 After grounding process is completed if ground resistance is higher than 5 ohm additional ground rod must be embedded Leave the additional one away from the previous ground rod at least equal to the length of ground rod Connect them together in parallel SHOWER SET Shower heads allow users to adjust into 3 types by simply twisting the shower h...

Page 10: ... bottom 3 Now the body is free REMOVE OF BODY Fig 21 Body Screw Back cover REPLACING METHOD FOR MAIN PARTS 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 Body Shower hose ...

Page 11: ...ews holding the push SW set to the back cover 3 Now the push SW set is free 1 Remove the body in accordance with REMOVE OF BODY 2 Push the claws of the guide pin by flat screwdriver and remove the guide pin from the body 3 Now the power SW button is free REMOVE OF PUSH SWITCH SET REMOVE OF POWER SWITCH BUTTON Body Remove the guide pin Flat screwdriver ...

Page 12: ...screws of the reed switch at the specified torque 3 4 kgf cm REMOVE OF REED SWITCH Fig 25 Reed SW Screw Body valve Reed SW lead wire Fig 24 REMOVE OF TRIAC 1 Remove the body in accordance with REMOVE OF BODY 2 Disconnect 3 lead wires from the triac 3 Remove 2 screws holding to the heater tank ass y 4 Now the triac is free Triac Heater tank Screw White lead wire Breaker lead wire Triac lead wire Br...

Page 13: ...from the volume SW angle E 4 Now the PCB B ass y is free REMOVE OF PCB B ASS Y Fig 27 Back cover Volume SW angle E Claw of volume SW angle E PCB B ass y Lead wires for PCB A CN2 1 Remove the body in accordance with REMOVE OF BODY 2 Pull out all the lead wires from the PCB A 3 Remove 3 screws holding the PCB A 4 Now the PCB A is free REMOVE OF PCB A Fig 26 Screw Back cover PCB A ...

Page 14: ... REMOVE OF HEATER TANK ASS Y REMOVE OF BODY VALVE ASS Y AND WATER OUTLET 1 Remove the body in accordance with REMOVE OF BODY 2 Remove the reed SW in accordance with REMOVE OF REED SWITCH 3 Remove the push SW set in accordance with REMOVE OF PUSH SWITCH SET 4 Detach 2 clamping springs holding the body valve ass y and the water outlet to the heater tank ass y 5 Remove 2 screws holding the body valve...

Page 15: ...the breaker angle support to the breaker 3 Remove 2 screws holding 2 breaker lead wires to the breaker 4 Remove 2 screws holding the breaker to the back cover 5 Now the breaker is free REMOVE OF BREAKER Split pin Breaker Breaker lock Back cover Breaker angle support Screw Breaker lead wire ...

Page 16: ... PCB A is defected Triac ass y is defected PCB A is defected PCB A is defected PCB A is defected O ring is clogged Shower ass y is clogged Main water valve is open too low Main water valve is closed Water volume is closed Power switch button is defected Water is not hot ELB lamp is lights up Power lamp is not lights up Control lamp is not lights up Water is not hot ELB lamp is not lights up Power ...

Page 17: ...17 CIRCUIT DIAGRAM PCB A ...

Page 18: ... PIN SPRING 1 2 7 71J203 ELB KNOB 1 2 8 7N6182 BREAKER ANGLE SUPPORT 1 2 9 7N706 SPLIT PIN 1 2 10 71J214 BREAKER LOCK 2 2 11 7A220 CLAMPING SPRING 2 2 12 7K102 WATER OUTLET 1 2 13 7D9241 PLUG 2 2 14 71J201 BACK COVER 1 2 15 7D601 AC LINE CLAMP 1 2 16 7N608 RUBBER CAP 1 2 17 71M215 VOLUME SW SUPPORT E 1 2 18 71M216SET PUSH SWITCH SET 1 2 19 71M410ASY BODY VALVE ASS Y 1 2 20 71J305 HEATER TANK SUPPO...

Page 19: ... 71M403 PCB B 1 3 5 71M411 BREAKER LEAD WIRE BLACK 1 3 6 7D2101 MICRO SWITCH 1 3 7 7R405 REED SWITCH ASS Y 1 3 8 71M408 LEAD WIRE FOR PCB A CN1 1 3 9 71J407 TRIAC LEAD WIRE BROWN 1 3 10 7R128ASY THERMISTOR ASS Y 1 3 11 7N1261 THERMOSTAT 85 o C 1 3 12 71M410 THERMOSTAT LEAD WIRE YELLOW 1 3 13 7G127ASY TRIAC ASS Y 600V 25A 1 3 14 7N509 LEAD WIRE EARTH 1 ...

Page 20: ...TTON 1 2 6 71M307 GUIDE PIN SPRING 1 2 7 71P203 ELB KNOB 1 2 8 7N6182 BREAKER ANGLE SUPPORT 1 2 9 7N706 SPLIT PIN 1 2 10 71J214 BREAKER LOCK 2 2 11 7A220 CLAMPING SPRING 2 2 12 7K102 WATER OUTLET 1 2 13 7D9241 PLUG 2 2 14 71J201 BACK COVER 1 2 15 7D601 AC LINE CLAMP 1 2 16 7N608 RUBBER CAP 1 2 17 71M215 VOLUME SW SUPPORT E 1 2 18 71M216SET PUSH SWITCH SET 1 2 19 71M410ASY BODY VALVE ASS Y 1 2 20 7...

Page 21: ... 71M403 PCB B 1 3 5 71M411 BREAKER LEAD WIRE BLACK 1 3 6 7D2101 MICRO SWITCH 1 3 7 7R405 REED SWITCH ASS Y 1 3 8 71M408 LEAD WIRE FOR PCB A CN1 1 3 9 71J407 TRIAC LEAD WIRE BROWN 1 3 10 7R128ASY THERMISTOR ASS Y 1 3 11 7N1261 THERMOSTAT 85 o C 1 3 12 71M410 THERMOSTAT LEAD WIRE YELLOW 1 3 13 7G127ASY TRIAC ASS Y 600V 25A 1 3 14 7N509 LEAD WIRE EARTH 1 ...

Page 22: ...307 GUIDE PIN SPRING 1 2 7 71J203 ELB KNOB 1 2 8 7N6182 BREAKER ANGLE SUPPORT 1 2 9 7N706 SPLIT PIN 1 2 10 71J214 BREAKER LOCK 2 2 11 7A220 CLAMPING SPRING 2 2 12 7K102 WATER OUTLET 1 2 13 7D9241 PLUG 2 2 14 71J201 BACK COVER 1 2 15 7D601 AC LINE CLAMP 1 2 16 7N608 RUBBER CAP 1 2 17 71M215 VOLUME SW SUPPORT E 1 2 18 71M216SET PUSH SWITCH SET 1 2 19 71M410ASY BODY VALVE ASS Y 1 2 20 71J305 HEATER T...

Page 23: ...M403 PCB B 1 3 5 71N411 BREAKER LEAD WIRE BLACK 1 3 6 7D2101 MICRO SWITCH 1 3 7 7R405 REED SWITCH ASS Y 1 3 8 71N408 LEAD WIRE FOR PCB A CN1 1 3 9 71K407 TRIAC LEAD WIRE BROWN 1 3 10 7R128ASY THERMISTOR ASS Y 1 3 11 7N1261 THERMOSTAT 85 o C 1 3 12 71N410 THERMOSTAT LEAD WIRE YELLOW 1 3 13 7J127ASY TRIAC ASS Y 600V 25A 1 3 14 7P509 LEAD WIRE EARTH 1 23 ...

Page 24: ...24 ...

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