NC-EH22P, NC-EH30P, NC-EH40P, NC-EH30PWTW, NC-EH40PWTW - Panasonic Home Appliance Service Manual (repair manual). Page 16

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NC-EH22P, EH30P, EH40P

ü

 The cause of this is “scale”.

  It is not fl akes of fl uororesin.
 * Water with a large content of minerals in it 

such as mineral water or ionised water, is 
more likely to cause a scale or white layer in 
the hot water.

ü

 Clean the inner container with an 

wet sponge. 

ü

 If the “scale” still remained, clean 

with citric acid. 

ü

 When “scale” adhered, boiling sounds become 

louder.

ü

 Odors of chlorine remain depending on the 

amount of chlorine in tap water.

ü

 Press the ‘Reboil’ key to reduce 

the chlorine.

ü

 When the unit is new, resin used in manufacture may give off a mild odor.

  This will disappear with use.
ü

 If the unit is placed on surfaces such as a vinyl sheet, the odor may be carried over 

into the water. 

ü

 Water has been added above maximum water 

level.

ü

 Lower the water level.

ü

 The mesh fi lter may be clogged with “scale”.

ü

 Clean the fi lter with a brush.

ü

 If the “scale” cannot be removed, 

replace the fi lter.

ü

 Overheating protection has been activated 

ü

 Add water and press the ‘Reboil’ 

key.

ü

 The indicator lights may fl ash alternately by 

adding boiling water or the way the water is 
supplied.

 

ü

 Press the ‘Reboil’ key. 

ü

 When the inner container is cleaned with citric 

acid, citric acid have built up on the bottom.

ü

 Disconnect the plug, and stir the 

citric acid well to disperse.

ü

 The automatic lock has been engaged.

ü

 Press the ‘Lock/Unlock’ key.

ü

 If the problem is not fi xed after checking the above possible causes, or if you think something is strange, discon-

nect the body plug from the unit. Wait at least 10 seconds and then re-connect the plug.

ü The semi-transparent inner part inside the lid may become yellowish. This does not affect operation of the unit.
ü The rattling noise in the lid is made by small ball-shaped components which prevent water from fl ooding out if the 

unit topples over.

ü If the room temperature is very high, the outside of the main unit may reach about 55°C.

ü

 You poured in water directly from a tap.

ü

 It is broken if the electric 

components are taken in water.

  Contact the stores where you 

purchased for repair.

ü

 You put the unit on the sink.

ü

 You turn the unit upside down with its bottom 

wet. 

ü

 You washed the unit in water. 

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1/14/08   9:36:32 AM

1/14/08   9:36:32 AM