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NC-BH30P, BH40P

2.3.  Failure Diagnostics Chart

2.3.1.  No power. (There is no power indication.) 

 Sections 2.4.1 to 2.4.7 

   

describe electric power supply.

The items in the “Check” column correspond to those shown in Check Points on P.6.

Check

Diagnostics Method

Action

Thermal fuse comp.

Is there connection between the white lead wire on the peg 
frame and the CN3 connector of the control unit A? (0

Ω

)

Replace the thermal fuse comp.

Keep warm heater

Is there connection across the boiling heater contacts? 
(approx. 133

Ω

)

The container comp.

Power cord

Is there connection in the power cord? (0

Ω

)

Replace the power cord.

Lead wire assy. E comp.

Is there connection in the lead wire assy. E? (0

Ω

)

Replace the lead wire assy. E.

When the above parts are normal

Replace the control unit A (bottom)

When the above parts are normal

Replace the control unit B (operation)

2.3.2.  Water is not boiling. (Water comes out.)

The items in the “Check” column correspond to those shown in Check Points on P.6.

Check

Diagnostics Method

Action

Water Heater

Is there connection between the white lead wire and 
the red lead wire? (approx.14

Ω

)

Replace the container comp.

When the above parts are normal

Replace the control unit A (bottom)

When the above parts are normal

Replace the control unit B (operation)

2.3.3.  Water does not come out, or water 

fl

 ow is restricted. (Water is boiling.)

Check point

Diagnostics Method

Action

Is the 

fi

 lter (located at the bottom of container) clogged?

Clean or replace the 

fi

 lter.

The items in the “Check” column correspond to those shown in Check Points on P.6.

Check

Diagnostics Method

Action

Electric pump

Turn on the 100V power, and press the Lock/Unlock pad 

fi

 rst 

and then the Pour out pad. Is the motor heard running?

Replace the electric pump.

Lead wire assy. E comp.

Is there a miss-connection in the lead wire assy. E (0

Ω

)

Replace the lead wire assy. E.

When the above parts are normal

Replace the control unit B (bottom)

When the above parts are normal

Replace the control unit A (operation)

2.3.4.  Reboil and Vacuum Keep Warm lamps illuminate alternately. 
   

(Overheating protection mode/Bottom thermistor disconnection comp. mode)

Check point

Diagnostics Method

Action

Is there water inside?

Supply water and press Reboil pad.

The items in the “Check” column correspond to those shown in Check Points on P.6.

Check

Diagnostics Method

Action

Thermistor comp.

Is there connection between blue lead wire and blue 
lead wire? (approx.45

Ω

 at approx. 20°C)

Replace the thermistor comp.

Lead wire E comp.

Is there connection in the lead wire assy. E? (0

Ω

)

Replace lead wire E comp.

When the above parts are normal

Replace the control unit B (bottom)

When the above parts are normal

Replace the control unit A (operation)

2.3.5.  The Select pad does not work

Check

Diagnostics Method

Action

Replace the control unit B (bottom)

When the above parts are normal

Replace the control unit A (operation)

2.3.6.  The Lock/Unlock pad does not work.

The items in the “Check” column correspond to those shown in Check Points on P.6.

Check

Diagnostics Method

Action

Lead wire E comp.

Is there miss-connection in the lead wire assy E? (0

Ω

)

Replace lead wire E comp.

When the above parts are normal

Replace the control unit B (bottom)

When the above parts are normal

Replace the control unit A (operation)

2.3.7.  Hot water does not dispense smoothly. 
   

(Immediately after being boiled in particular) Boiling is too noisy. 

   

Scale accumulation becomes severe inside the container.

Check

Diagnostics Method

Action

Clean with citric acid

NC-BH40-30-22.indd   7

NC-BH40-30-22.indd   7

14-08-07   16:47:59

14-08-07   16:47:59

Содержание NC-BH30P-C

Страница 1: ...Operation method Push switch Pump lock Electronic lock system Locked in 10 sec after switching Dispense Hot water pump Power consumption 1 5W DC commutator motor Rated duration 3 minutes Additional functions Dechlorination keep warm 98 90 80 60 Energy saving timer 4 6 8 and 10 hours Overheating protection Lock Unlock pad Citric acid cleaning WARNING This service information is designed for experie...

Страница 2: ...id electric shock Disconnect power plug while repairing Caution for electric shock During repair service with power on such as for voltage measurement be careful to avoid electric shock around charged battery portion or lead wire ter minals ୃℂ ᬺ ో ߩᵈᗧ Disconnect power plug Disassemble assemble and replace parts after disconnecting the power source Failure may cause electric shock or injury Make su...

Страница 3: ...mp illuminates and switches to the keep warm mode Keep warm mode After approx 9 minutes the 100 keep warm lamp changes to 98 After approx 3 minutes the 90 keep warm lamp changes to 98 After approx 3 minutes the 80 keep warm lamp changes to 98 After approx 3 minutes the 60 keep warm lamp changes to 98 Required time for the water temperature to increase to the set temperature 98 keep warm approx 1 t...

Страница 4: ...eep warm with 98 setting 2 Press the Reboil pad once or twice 60 80 90 98 Dechlorination Reboil Timer Select Citric acid cleaning Push for 3 seconds Pour out Unlock 98 Vacuum keep warm 60 80 90 98 Dechlorination Reboil Timer Select Citric acid cleaning Push for 3 seconds Pour out Unlock 98 Vacuum keep warm 60 80 90 98 Dechlorination Reboil Timer Select Citric acid cleaning Push for 3 seconds Pour ...

Страница 5: ...Select pads at the same time Performance Press the Lock Unlock pad and the Pour out pad and water flows out Performance Indication on LCD is as follows Press at the same time 60 80 90 98 Dechlorination Reboil Timer Select Citric acid cleaning Push for 3 seconds Pour out Unlock Vacuum keep warm 60 80 90 98 Dechlorination Reboil Timer Select Citric acid cleaning Push for 3 seconds Pour out Unlock 1 ...

Страница 6: ...White Blue Red Tapping screw M4 x 12 Truss head screw Bottom plate Sleeve Screw B Waterproof cover B Body CAUTION When touching or near the control unit discharge static electricity by grounding the human body clothes work table etc through a resister of a few mega ohms Microcomputer may be damaged by static electricity Note When copper foil pattern on control unit is broken do not repair and reus...

Страница 7: ...out pad Is the motor heard running Replace the electric pump Lead wire assy E comp Is there a miss connection in the lead wire assy E 0Ω Replace the lead wire assy E When the above parts are normal Replace the control unit B bottom When the above parts are normal Replace the control unit A operation 2 3 4 Reboil and Vacuum Keep Warm lamps illuminate alternately Overheating protection mode Bottom t...

Страница 8: ... Indication in LCD and example of operation 2 4 1 All lights are on 2 4 2 Cleaning Cleaning by citric acid mark will rotate Reboil LED Light is on 2 4 3 Boiling at 90 keep warm setting When power on Boiling Reboil LED Light is on Temperature rises Detection of boiling Reboil LED Light is off Keep warm LED Light is on Keep warm LED Light is on Keep warm LED Light is on NC BH40 30 22 indd 8 NC BH40 ...

Страница 9: ...Boiling Press Select pad and set 60 Reboil LED Light is on Reboiling LED Light is on Detection of boiling Reboil LED Turns off Keep warm LED Light is on Keep warm LED Light is on Keep warm LED Light is on 2 4 5 Boiling for Dechlorination set up When power on Boiling Reboil LED Light is on Reboil LED Flashing Reboil LED Flashing Press Reboil pad once Temperature rises Reboil LED Flashing Reboil LED...

Страница 10: ...off Reboil LED Light is off Keep warm LED Light is on 2 4 7 Cleaning Cleaning with citric acid in the water Press Reboil pad once Reboil LED Light is on Reboil LED Light is on Cleaning sign shows rotation Reboil LED Light is on Cleaning sign shows rotation Temperature rises Press Select button 3 seconds or more Approx 35 minutes later with water volume of 2 2L 2 4 8 Detection of abnormal operation...

Страница 11: ... LED Light is on Boiling mode Reboil LED Light is on Press Timer pad once Indicated in hours Remaining hours 0 Reboil LED Light is off Keep warm LED Light is on Reboil LED Light is on Keep warm LED Light is on Detection of boiling Temperature rises Keep warm LED Light is on 2 4 10 At dechlorination in Timer mode Heater turns off and water does not boil Reboil LED Light is flashing Reboil LED Light...

Страница 12: ... ohms Microcomputer may be damaged by static electricity Note When copper foil pattern on control unit is broken do not repair and reuse it 1 Remove 3 claws holding waterproof cover B and remove it 2 Remove all the connectors fastener terminals and lead wire E comp at the bottom of Control unit A 3 Remove the nonflammable tube Service point Remove the fastener terminal stoppers by pulling them whi...

Страница 13: ...lf tapping screws Case of A comp Lead wire E comp 3 3 Motorized Pump 1 Remove one holding screw for motorized pump 2 Remove the communicating bushing from the water pipe packing A and container comp 3 4 Water Pipe Comp 1 Remove water pipe comp 2 Remove case A comp after removing 2 screws fixing case of A comp NC BH40 30 22 indd 13 NC BH40 30 22 indd 13 14 08 07 16 48 02 14 08 07 16 48 02 ...

Страница 14: ...n reassembly When inserting the lead wire E comp into the control unit B for display panel insert it toward the direction shown in diagram of DISASSEMBLY 5 3 6 Thermal Insulator A comp 1 Remove the thermal insulator A comp from the body Remove it toward upper side Service point Do not scratch the thermal insulator A comp Vacuum state cannot be maintained Non printed side Lead wire E comp Name plat...

Страница 15: ...n assembling thermistor comp make sure to apply the lubricating agent A CAUTION If the lubricating agent A is not applied during the thermistor assembly sensitiv ity of thermistor becomes worse When assembling the thermistor make sure to apply the lubricant agent A provided 3 7 Thermal Fuse comp and Thermistor comp 3 8 Pouring spout and lock lever A knob for opening and closing the cover 4x8 Delti...

Страница 16: ...he like 2 Remove the self tapping screw 3 Insert the bladed screwdriver between rib of the peg frame and rib of the body Then turn the bladed screwdriver to the right hand direction and push angle plate sharply to release it Point in Reassembling When the body or the bottom ring is replaced apply a friction reducing agent It does not turn smoothly if the volume of the friction deducing agent is in...

Страница 17: ...ove the lnner lid 4x20 self tapping screws Stainless Inner lid Lid comp 3 13 Lid A and Lid cover comp 1 Remove the 2 screws 2 Put a thin bladed screwdriver or the like between the lid and the lid cover comp and lever it to separate them 3 Remove the thermal insulator B DISASSEMBLY 12 4x20 self tapping screws Stainless Lid cover comp Thermal insulator B DISASSEMBLY 11 Bladed screwdriver Lid A DISAS...

Страница 18: ...n the 2 peg frame pins and the bottom plate Dielectric strength Shall withstand 1000VAC for one minute Measuring point Same as for the insulation resistance test Check normal operation Conduct the pot performance test see page 3 to check if the operation is normal 3 15 Position of production date stamping Production date is stamped on the bottom plate Example Year Month Day Line Number Production ...

Страница 19: ...SW2 Timer SW3 Select SW4 Unlock SW5 Pour out 19 NC BH30P BH40P 4 Schematic diagram 4 1 Wiring connection diagram Control unit A Bottom Control unit B Operation Thermistor comp Peg frame Br Container comp Keep warm heater 75W Main heater 700W White Thermal fuse comp Blue White White Yellow Red Blue Red Orange Motorized pump NC BH40 30 22 indd 19 NC BH40 30 22 indd 19 14 08 07 16 48 07 14 08 07 16 4...

Страница 20: ...shock Power cord Peg frame with built in boiling and keep warm heaters Container comp White White White Yellow Fasten terminals with stopper Red Blue Fasten terminals with stopper Lead wire E comp Control unit A Bottom Red Control unit B Operation Thermistor comp Blue Motorized pump Thermal Fuse Comp Orange Blue NC BH40 30 22 indd 20 NC BH40 30 22 indd 20 14 08 07 16 48 08 14 08 07 16 48 08 ...

Страница 21: ... 21 NC BH30P BH40P 5 Parts location and parts list 5 1 Development NC BH22 30 40 NC BH40 30 22 indd 21 NC BH40 30 22 indd 21 14 08 07 16 48 08 14 08 07 16 48 08 ...

Страница 22: ...P 5 2 Packing procedure Polythene bag for power cord Power cord Pad A Instruction manual including guarantee card Pad B Polythene bag Pad C Inner box NC BH40 30 22 indd 22 NC BH40 30 22 indd 22 14 08 07 16 48 09 14 08 07 16 48 09 ...

Страница 23: ... 19 APD70 578 0U Insulation Panel A Comp 1 1 1 1 1 1 19 APD70 579 0U Insulation Panel A Comp 1 1 1 1 20 APE72B608 0U Cover Plate Comp 1 20 APE72 577 0U Cover Plate Comp 1 1 1 1 20 APE72M608 0U Cover Plate Comp 1 21 APB51 5291 Board Holder A 1 1 1 1 1 1 22 APR30B608 Control Unit A 1 22 APR30H608 Control Unit A 1 1 1 1 1 23 APB65 5292 Waterproof Cover B 1 1 1 1 1 1 24 APN04 578 0U Lead Wire Ass y E ...

Страница 24: ...e 1 1 1 1 1 44 APE76 4802 Bottom Plate 1 45 APN07B48810U Plug Comp 1 45 APN07H48720U Plug Comp 1 1 1 45 APN07T51410U Plug Comp 1 1 Screws Ref No Parts No Parts Name BH30P BH40P Taiwan Hong Kong Thailand Vietnam singapore Malaysia Remark A XTN4 12CZM Pan HeadTapping Screw 5 5 5 5 5 5 For Inner Lid Lid Cover B ANB1750J999A Deltite Screw 4x8 3 3 3 3 3 3 For Cover Pleate and Pump Comp C APK51 5291 Scr...

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