ZOJIRUSHI
facebook twitter youtube
FAQarrowWater Boilers
Rice Cookers FAQ
If none of these answered your questions, please contact our Customer Service Department at 800-733-6270, M-F 8:00 a.m. to 5:00 p.m. PST or by e-mail here.
Q1. Where can I order replacement parts for my electric boiler & warmer?
Q2. Where is my nearest Service Center?
Q3. What is an electric boiler & warmer?
Q4. Can I use the electric boiler & warmer to heat other liquids?
Q5. What are all those temperatures for?
Q6. How long does it take to boil water in an electric boiler & warmer?
Q7. How does the timer work?
Q8. What does the descaling mode do?
Q9. How can I clean the water deposits in my Electric Boiler & Warmer?
Q10. What does the dechlorinate mode do?
Q11. What does the safety auto shut-off do?
Q12. What is the warranty on my Zojirushi water boiler?
Q1. Where can I order replacement parts for my electric boiler & warmer?
A1. Replacement parts may be ordered from our online Zojirushi Parts Store or by calling our Customer Service Department at 800-733-6270, M-F, 8:00 a.m. to 5:00 p.m. PST. Please have the model number ready when calling.
 
Back to Top
Q2. Where is my nearest Service Center?
A2. Please see a list of our Authorized Service Centers here to find your nearest Service Center. Please have the model number ready when calling.
 
Back to Top
Q3. What is an electric boiler & warmer?
A3. An electric boiler & warmer is a kitchen appliance that keeps water at a constant hot temperature for hot drinks and other culinary uses. You simply fill the boiler with water and plug it in. It boils the water and keeps it at a set temperature all day long. With an electric boiler & warmer, hot water is ready all day at the touch of a button for hot tea, instant coffee and instant noodles. Each model features different hot water temperature settings depending upon your needs. Some also utilize vacuum insulation to keep water hot without the use of electricity. See Water Boiler COMPARE. Also see Question 5, "What are all those temperatures for?"
 
Back to Top
Q4. Can I use the electric boiler & warmer to heat other liquids?
A4. No, the electric boiler & warmer is for water only.
 
Back to Top
Q5. What are all those temperatures for?
A5. The multiple temperatures can be used for different beverages and foods. Here is a sample:

212°F and 208°F: Brew black, herbal and pu-erh tea; prepare coffee and instant noodles
195°F: Brew oolong tea and white teas
175°F: Brew various green teas (bancha, houjicha, genmaicha)
140°F: Brew high quality green tea (gyokuro)
 
Back to Top
Q6. How long does it take to boil water in an electric boiler & warmer?
A6. It depends on the temperature of the water and the amount, but it usually takes 30 to 40 minutes. The electric boiler & warmer is not meant to boil water quickly, but to keep the water at a steady temperature all day long; that is why most of the models have a timer. Please see Question 7, "How does the timer work?" for more information on the timer.
 
Back to Top
Q7. How does the timer work?
A7. By setting the timer, you can have hot water ready within a specified time. When the timer is set, the electricity is automatically cut off until needed to heat the water. It's perfect if you set it before you go to bed, so hot water will be ready for instant coffee or oatmeal the next morning. It also saves energy by not having the electric boiler & warmer on all night long.
 
Back to Top
Q8. What does the descaling mode do?
A8. The descaling mode cleans the inner container by reboiling the water with Zojirushi's Inner Container Cleaner (CD-K03E) or citric acid. If the inner container still becomes scaled, please see Question 9 for "How can I clean the water deposits in my Electric Boiler & Warmer?"
 
Back to Top
Q9. How can I clean the water deposits in my Electric Boiler & Warmer?
A9. We recommend you clean the inner container periodically with Zojirushi's Inner Container Cleaner (CD-K03E) or citric acid every 1 to 3 months. You can purchase the cleaner from our online Zojirushi Parts Store or by calling our Customer Service Department at 800-733-6270, M-F, 8:00 a.m. to 5:00 p.m. PST. Follow these instructions to clean with citric acid:

1. Put 1 package of citric acid CD-K03E in a cup and add warm water to dissolve. Pour it into the inner container and fill with water to the maximum water level line. The cleaner may also be substituted with 1/2 cup of lemon juice from concentrate. If using freshly squeezed lemon juice, please be sure to strain first, so the pulp does not get caught in the pump and damage the boiler.

2. Close the upper lid, insert the power plug and press and hold the REBOIL button for more than 3 seconds. This will activate the descaling mode.

3. Once cleaning completes, unplug the power plug, detach the upper lid and dispose water where indicated "EMPTY FROM HERE."

4. To remove the smell of citric acid, fill the inner container with water. Boil and dispense about a cup of hot water, allow to cool, then dispose the remaining water.
 
Back to Top
Q10. What does the dechlorinate mode do?
A10. The dechlorinate mode reduces chlorine and musty odors from tap water by extending the boiling time.
 
Back to Top
Q11. What does the safety auto shut-off do?
A11. The boiler will automatically turn off to avoid overheating when there is no water left in the boiler or when the lid is left open.
 
Back to Top
Q12. What is the warranty on my Zojirushi water boiler?
A12. Please see our Limited Warranty for Electrical Products Page for warranty information.
 
Back to Top