DOWNLOAD Panasonic NC-EH22P / NC-EH30P / NC-EH40P / NC-EH30PWTW / NC-EH40PWTW Service Manual ↓ Size: 707.71 KB | Pages: 20 in PDF or view online for FREE

Model
NC-EH22P NC-EH30P NC-EH40P NC-EH30PWTW NC-EH40PWTW
Pages
20
Size
707.71 KB
Type
PDF
Document
Service Manual
Brand
Device
Home Appliance / ELECTRIC THERMO POT
File
nc-eh22p-nc-eh30p-nc-eh40p-nc-eh30pwtw-nc-eh40pwtw.pdf
Date
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Panasonic NC-EH22P / NC-EH30P / NC-EH40P / NC-EH30PWTW / NC-EH40PWTW Service Manual ▷ View online

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- 11 -
NC-EH22P, EH30P, EH40P
3.9. Name B (decorative panel)
  1. Remove the name B panel by picking with a bladed 
screwdriver or a pin at point “A”.
Name B 
(decorative panel)
Point A
Points in reassembling
• Affi x name A in the direction of the arrow starting from 
point A.
DISASSEMBLY-9
3.10. Peg Frame
  1. Remove the bottom ring upward using a bladed 
screwdriver or the 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 insuffi cient.
Bottom ring
Peg frame
4x12 self-
tapping screw
Bladed 
screw driver
DISASSEMBLY-10
Reboil
Pour
out
Long Boil
6h Timer
80
98
60
90
Cleaning
(Press 3s)
Unlock
Lock
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- 12 -
NC-EH22P, EH30P, EH40P
3.11. Name A
  1. Push out transparent portion of water supply and 
gauge cover from inside the body with the thumb.
Body
Push with 
thumb
Name A with the water feed and 
the water gauge cover
3.12. Lid comp. and Inner lid
  1. Remove the 3 screws. 
  2. Remove 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. 
DISASSEMBLY-12
4x20 self-tapping 
screws (Stainless)
Lid cover comp.
DISASSEMBLY-11
Bladed 
screwdriver
Lid A
DISASSEMBLY-13
Gap
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- 13 -
NC-EH22P, EH30P, EH40P
3.16. Performance test
 
 
CAUTION
Be careful to avoid burns from hot 
water during this test.
3.16.1. Keep Warm temperature check 
  1. Fill the container with the rated amount of water, 
and maintain temperature. 
  2. Measure the temperature 1 hour after keep warm 
lamp illuminates. 
Normal warming temperature range: 
90°C - 100°C (without continuous boiling) 
LED indication: 98 
3.16.2. Discharge amount check (at 98 setting) 
3.16.2.1. With motorized discharge 
  1. Fill the container with the rated amount of water. 
  2. Measure the water amount about one hour after 
the start of keep warm operation. 
  3. Press the Pour out pad and let the hot water 
pour out for 5 seconds. Measure the amount of 
discharged hot water. 
Normal water discharge amount: 
  250ml or more
3.14. Checks after assembly
After assembly, check for any water leaks, insulation resistance, dielectric strength, and performance, with power 
applied. 
The insulation resistance: Shall be 2MΩ or more when measured with a 500VDC megger. (Measuring point: Between 
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 date
3.16.3. Boiling time (Steam emitting time) check
 
  1. Pour the rated amount of water into the container, 
and boil the water. 
  2. Measure the exact time from when steam starts to 
be produced to when the vacuum keep warm lamp 
illuminates. 
Normal boiling time:
  80 seconds or less. 
3.16.4. Dechlorination boiling check (at 98 setting)
 
  1. Fill the container with the rated amount of water, 
and switch to dechlorination mode by pressing the 
Reboil pad. (Reboil lamp illuminates for fl ushing.) 
  2. Check that dechlorination boiling mode starts. 
3.16.5. Citric acid cleaning time check
 
  1. Fill the container with the rated amount of water, and 
switch to citric acid cleaning mode by pressing the 
Select pad for more than 3 seconds. 
  2. Check citric acid cleaning mode starts. (Reboil lamp 
illuminates and the liquid crystal indication rotates.)
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Relationship of LEDs and switches 
on the control unit B (Operation) 
and relevant indicators.
LED
Indication
Color
LED1
Reboil
Red
LED2
Vacuum keep 
warm
Orange
LED3
Unlock
Red
Switch Indication
SW1
Reboil
SW2
Timer
SW3
Select
SW4
Unlock
SW5
Pour out
- 14 -
NC-EH22P, EH30P, EH40P
4 Schematic diagram
4.1. Wiring connection diagram
Control unit A 
(Bottom)
Control unit B 
(Operation)
Thermistor 
comp.
Peg frame
White
Container comp.
Keep warm heater 75W
Main heater 700W
White
Thermal fuse 
comp.
White
White
White
Yellow
Red
Blue
Red
Orange
Motorized pump
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