Tiger PDU-A40U Electric Water Boiler and Warmer Guide

Tiger PDU-A40U Electric Water Boiler and Warmer Guide

IMPORTANT SAFEGUARDS

When using the appliance, basic safety precautions should always be followed including the following:

1. Read all instructions.
2. Do not touch hot surfaces. Use handles or knobs.
3. To protect against electrical shock, do not immerse the cord or plug in water or other liquid.
4. Close supervision is necessary when the appliance is used by or near children.
5. Unplug from the outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts.
6. Do not operate the appliance with a damaged cord or plug or after the appliance malfunctions or has been damaged in any manner. Return the appliance to the nearest authorized service facility for examination, repair, or adjustment.
7. The use of accessory attachments not recommended by the appliance manufacturer may result in fire, electric shock, or injury to persons.
8. Do not use outdoors.
9. Do not let the cord hang over the edge of the table or counter, or touch hot surfaces.
10. Do not place the appliance on or near a hot gas or electric burner, or in a heated oven.
11. Extreme caution must be used when moving the appliance containing hot oil or other hot liquids.
12. Always attach the plug to the appliance first, then plug the cord into the wall outlet. To disconnect, turn any control to “off”, then remove the plug from the wall outlet.
13. Do not use the appliance for other than intended use.

SAVE THESE INSTRUCTIONS

Servicing should be performed by an authorized service representative. This appliance is intended for household use. To reduce the risk of injury, do not drape the cord over the countertop or tabletop where it can be pulled on by children or tripped over unintentionally.

The appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

The following instructions apply to 120V only:
This appliance has a polarized plug (one blade is wider than the other). To reduce the risk of electric shock, this plug is intended to fit into a polarized outlet only one way If. the plug does not fit fully into the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not attempt to modify the plug in any way.

Read and follow all safety instructions before using the appliance.

• The WARNINGS and CAUTIONS described below are intended to protect the user and other individuals from physical harm and household damage. To ensure safety, please follow carefully.
• Do not remove the caution/warning seal attached to the appliance

Warning

• Do not attempt to disassemble, repair, or modify the product. Repairs should only be performed by a qualified service representative. Doing so may result in fire, electric shock, or injury
• Use only a 120V AC power source. Use of any other power supply voltage may result in fire or electric shock.
• Do not damage or use a damaged power cord. Do not forcefully bend, twist, fold, or modify the cord. Do not place near high-temperature surfaces or under/between heavy objects. A damaged power cord can cause fire or electric shock.
• Wipe the plug thoroughly in case dust or other foreign objects are collected. This is to avoid fire. Firmly insert the plug into the outlet to avoid electric shock, shorting, smoke, or fire.
• Do not use the product if the power cord or plug is damaged or the plug is loose in the outlet. This is to avoid electric shock shorting, or fire.
• If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.
• Do not hold the main unit close to your body, tilt or rock it, or shake it vigorously. Even if the dispense lock button is “locked,” do not tilt or tip the product. This is to avoid scalds caused by spillage
• Do not tip over the product. Even if the dispense lock button is “locked,” do not tilt or tip the product. This is to avoid scalds caused by spillage.
• If the lid gasket changes color or is damaged, be sure to replace it. If not replaced, water may spill if tipped over; possibly causing scalds
• Stop using the appliance immediately if you incur any malfunction or trouble. Not doing so may result in fire, electric shock, or injury. Examples of trouble:
  • The power cord and/or plug become abnormally hot.
  • The power goes in and out when the power cord is moved.
  • When the appliance becomes abnormally hot or there is a smell of something burning.
  • Water leaks from the main unit.
  • There are other problems or abnormalities. Immediately unplug the power cord from the outlet and contact your local dealer for servicing.

Caution

• Unplug the power cord when not in use. This is to avoid injury, scalds, electric shock, or fire caused by a short circuit.
• Be sure to firmly hold the plug when removing it from an outlet; this is to avoid electric shock, shorting, or fire.
• Use only the power cord which is included with this product. Do not use the included power cord with any other appliance.
• Do not use multiple outlet receptacles, this is to avoid fire
• Do not use or place in areas prone to getting wet and do not allow the bottom of the main unit to get wet. This is to avoid shorting, electric shock, or malfunction.
• Do not fill the water directly from the faucet or wet the bottom of the product. Water may get into the product and cause shorting, electric shock, or malfunction.
• Do not expose the plug to steam. Doing so may result in electric shock or fire. When using the product on a sliding table, be careful not to expose the product to steam.
• Wait until the appliance has cooled down before performing maintenance; this is to avoid burns from hot surfaces.
• Do not use it near the wall or furniture. Steam or heat may damage the walls or furniture and cause discoloration or deformation. When using the appliance on a kitchen rack or cabinet, make sure the steam or heat is not trapped.
• Before cleaning, be sure to remove the plug from the outlet, and then remove it from the appliance. When cleaning is complete, be sure to check that both ends of the power cord are dry before plugging in. Do not move the appliance when plugged in. Doing so may result in shorting, electric shock, or fire

Following these safety instructions will allow the appliance to be used for many years.

• Do not use near an open flame. This is to avoid deformation or malfunction.
• Do not use in areas exposed to direct sunlight for a prolonged period. The product may become hot and malfunction.
• Do not turn on the electric water heater / warmer without water inside. Turning the heater on without water may cause the inner container to discolor or malfunction.
• Do not put charcoal such as Bincho charcoal into the container, this is to avoid malfunction or peeling of the fluoropolymer-coated surface.
• When unplugging the appliance and storing it for an extended period in a location subject to freezing temperatures, make sure there is no water in the inner container.

Part Names and Accessories

The numbers such as 208, 194, 176, and 158 indicated in this instruction manual are only approximate temperatures.

Operation Panel

Power Cord

Sounds
When the water is being boiled, bubbling sounds can be heard from inside the container. This is normal and does not indicate a malfunction.

Boiling Water
Before first use / When not used for a while
Be sure to clean the unit before use. There may be a plastic smell when first used. This is normal and will diminish with use.

1. Add water to max water level and then bring up to boil. (See below)
2. After the water is boiled, use the electric dispenser button to discard half of the hot water.
3. Unplug the power cord, open the lid, and then discard the rest of the hot water.

Open the lid

You may hear a rattle sound when opening /closing the lid. There is a valve in the outer lid to prevent water spillage.

Pour water into the unit with a separate container.
Fill water to a level between “Max water level” and “Refill watermark”

Caution

1. Do not fill water directly from a faucet. Do not place the unit on a wet surface.
2. The automatic Boil cycle may not work when refilling hot water above 122°F, be sure to add lukewarm water or cold water or press the Re-Boil/Timer key.
3. Do not exceed “Max water level”. Do not boil water if the water level is lower than the refill mark.

Close the lid.

If the lid is not closed securely, hot water may spill and cause scaling.

Connect the power cord. 

Boiling starts.

• Refer to p. 11 when selecting the temperature for Warmer. ( If no selection is made, a temperature of 194°F will be automatically set. )
• Refer to p. 14 for setting the power-saving timer.

Eliminate chlorine smell
Press the Re-Boil/Timer key once.

• extend boiling time

Select [Keep Warm] 

Timetable for Boiling and Cooling

	3.0L Type	4.0L Type
Boiling from cold water	Approx. 35 minutes	Approx. 45 minutes
From boiling to reach 194 warmer temperature	Approx. 45 minutes	Approx. 45 minutes
From boiling to reach 176 warmer temperature	Approx. 1 hour and 35 minutes	Approx. 1 hour and 40 minutes
From boiling to reach 158 warmer temperature	Approx. 3 hour and 0 minutes	Approx. 3 hour and 10 minutes

• Under these conditions: full water volume, the water temperature/room temperature is 73°F, and voltage is normal rated voltage.
• Guidelines for the time required to reach the 208 warmer temperature are almost the same as those for boiling from cold water.

To re-boil during the Keep Warm cycle. Press the Re-Boil/Timer key once.
Be sure the water level is above the refilled watermark

Guidelines for the time required for re-boiling when the water is at the full water level

	3.0L Type	4.0L Type
Warmer temperature at 208, 194	Approx.5-10 minutes	Approx.5-11 minutes
Warmer temperature at 176	Approx.12-14 minutes	Approx.14-16 minutes
Warmer temperature at 158	Approx.16-18 minutes	Approx.20-22 minutes

 

• Adding water or reattaching the power cord during the Boiling cycle, boiling time may extend

To reduce chlorine smell during the Keep Warm cycle.
Press the Re-Boil/Timer key twice

Press the Re-Boil/Timer key and scroll through the option until you reach your preferred option cycle.

Dispensing Hot Water

Press the Unlock key once

Press the Dispense key
Place a container under the spout, and press the Dispense key. Hot water continues to dispense while pressing the Dispense key

• After checking that hot water has stopped dispensing, remove the container from the spout
• If the unit is unplugged, hot water cannot be dispensed.
• When water is boiled, air pressure increases in the container so that the water dispenser may not produce a smooth water flow immediately after it is boiled. Release the air pressure by opening the lid and then dispense the water. Be cautious of steam.
• Mineral deposits can build on the wall of the inner container, mesh filter, or pump unit, causing water to not dispense.
• If the Dispense key is not pressed for approx. 10 seconds after dispensing hot water, the unlock lamp will be turned off and the unit will lock automatically.

Caution

• Do not dispense when the water level is at the “Refill watermark”. Hot water may splash when you dispense.
• Pay close attention when dispensing hot water to not spin the entire unit around.

Press the Unlock key once.
The Dispense key. will be locked, and hot water cannot be dispensed even if the key is pressed.

Refill water when the level becomes low.
Be sure to refill water before it reaches [Refill water mark], and close the lid securely.

Caution
Do not leave the unit without any water inside, this is to avoid malfunction due to boiling without water.

How to use Energy Saving Mode

Energy Saving Mode applies to Boiling and Keep Warm cycles.

• Energy Saving Mode Boiling: The heater will shut off when the temperature reaches 208°F and reduce boiling steam. (Depending on the room and water temperature, the steam cut function may not work.)
• The Energy Saving Mode cycle applies after 2 hours not in use. It reduces approximately 9°F from the regular setting temperature e.g.: If you select 208, Energy Saving Mode is 203

Select [Energy Saving Mode]
Press and hold the Energy Saving key for a second.

Once water reaches boiling point, it automatically switches to Keep Warm mode.

• When the boiling cycle is done…

The water reaches the setting temperature…

If the unit is not in use for 2 hours, it will automatically switch to Energy Saving Mode.
( 9°F lower than regular setting temperature)

How to bring back to setting temperature.
Press Temp. Set or Unlock key once. Bring back to the setting temperature about a minute.

How to cancel Energy Saving Mode
Press the Energy Saving key for a second. (It automatically reheats when the temperature is low.)

Caution
Keep your face or other body parts away from the steam vent which may be hot during the Energy Saving Mode boiling cycle.

After Finishing Using the Heater

Unplug

Remove the lid
While pressing down on the attach/remove lever for the lid, open and remove the lid by pulling the lid toward the spout.

Discard the remaining hot water 

• Move the unit to the kitchen sink and then discard water slowly. Caution for hot water may splash during this operation.
• Watch out for hot water dripping from the spout immediately after discarding the hot water.
• Be sure to clean the inner container and mesh filter.

Attach the lid
While pressing down on the attach/remove lever for the lid, insert the hook-on part of the lid.

Caution

• Do not leave hot water remaining inside the container. This is to avoid discoloration of the inside container or foul odors from forming.
• Do not turn the spout downward with the lid on, or discard hot water from the hinge area. This is to avoid scalds from splashing hot water or malfunctioning.
• Pay extra attention when discarding the remaining hot water, as the mesh filter may fall if it is not properly attached.

Cleaning

Any other servicing should be performed by an authorized service representative.

• Unplug, discard the remaining hot water, and wait until the unit cools down before cleaning can be started.
• Only use clean soft materials such as cloth, sponge, or paper towel.

Parts			Cleaning
			➊ Simply rinse thoroughly with water and wipe the inside liner with a clean sponge or paper towel. Caution • To prevent damage to the water heater do not use alkaline cleaning agents when cleaning, use a soft cloth and a mild detergent. • Do not use any material such as a cleanser or scrubber for tough stains or mineral deposit; this is to avoid damage to the non-stick (flouropolymer) coating surface. • All water that contains minerals will leave mineral residue on the inside liner when boiled. If not cleaned for a prolonged period, mineral build up or stains may become tough or louder noises can be heard while boiling water. Frequent cleaning is recommended. • Mineral deposit will eventually block the pipes and/or the steam vent if not removed. This blockage will cause the motor unit to burn when the “Dispense” key is pressed persistently. • Do not scrub and/or do not use a knife to remove the mineral deposit. • Discoloration caused by a dry boil is not removable. ❷ For mineral build up, use citric acid cleaner every 2-3 months (refer to p. 17) ■ Uneven colors or discoloration of the inner container and floating white material in the water Red spots such as rust, milky white discoloration, black spots, iridescence that appear in the inner container, and floating white material are caused by a reaction of the minerals (calcium, magnesium, iron, etc.) contained in the water. This is not discoloration, rust, or peeling of the fluoropolymer-coated surface of the inner container itself. Although there are no sanitary / health concerns, frequent cleaning is recommended when the heater starts to show stains.
			Wipe off stains with a damp cloth or paper towel.
			Wipe off with a dry cloth.
			Remove the mesh filter from the inner container. Wash with a soft brush e.g.: toothbrush. Caution • Frequent washing is recommended. This is to avoid clogging that may cause improper dispensing of hot water. • After washing, be sure to attach the filter firmly to the inner container. • If not attached, foreign objects may enter, causing the pump to stop dispensing.

 

Caution

• Do not soak the unit in water and do not pour water on the unit. This is to avoid shorting or electric shock.
• Never wash the entire unit. This is to avoid water getting inside the unit to cause malfunction.
• Do not use harmful materials such as detergent, thinner, cleanser, bleach, metal scrubber, nylon scrubber, or chemically treated wiping cloths.
• Do not put it in the dishwasher or dish dryer. This is to avoid deformation.

Cleaning

How to remove mineral deposits with citric acid

When washing the inner container with citric acid, be sure to follow the directions below. This is to avoid hot water spills or scalds.

• Do not fill with hot water. Be sure to wash with cold water.
• Do not fill with water above the full water level.
• Do not open the lid during a cleaning cycle.
• Be aware of hot steam during the cleaning cycle

< 90 minutes citric acid cleaning using QUICK function > For soft water (The guideline is once every 2-3 months)

1. Be sure that the mesh filter is set in the inner container.
2. Fill with cold water into the water heater up to the full water level capacity mark.
3. Add 1 package of PKS-0120 (1.06oz / 30g / 2-3 tablespoons) citric acid powder into the water heater and mix a little.
4. Close the lid plug-in and keep pressing the Temp. Set the key and the Re-Boil/Timer key at the same time for about 3 seconds.
   Washing will start. While the unit is being washed, the boiling lamp and the warmer lamp will alternately flash, notifying that washing is underway with the display panel changing as shown below. It will then switch to display the remaining washing time. (Cleaning Time: 1 hour and 30 min)
   • cleaning hour may vary depending on the water temperature.
     
5. When washing is finished, the boiling lamp and the warmer lamp will illuminate. The display panel will indicate as follows:
   
6. Discard all of the hot water (citric acid water) using the Dispense key through the spout.
7. Unplug and discard the hot water. If stains remain, scrub with a sponge and rinse well with water.
   • If a mineral deposit is still attached to the wall of the inner container, repeat the cleaning process.
8. To rinse the remaining citric acid, refill with clean water and bring up to a boil. Then discard half of the water using the Dispense key, open the lid discard the rest of the water.

< 8 hours citric acid cleaning using 208 temperature setting
For hard water Do not use the Quick cleaning function. (The guideline is once every 15-30 days)

1. Be sure that the mesh filter is set in the inner container.
2. Fill with cold water into the water heater up to the full water level capacity mark.
3. Add 1 package of PKS-0120 (1.06oz / 30g / 2-3 tablespoons) citric acid powder into the water heater and mix a little.
4. Close the lid plug-in and select the 208 temperature setting
5. Leave it for at least 8 hours or overnight.
6. Press the Dispense key and have 1 / 3 of the water discarded from the spout.
7. Unplug the water heater and remove the top lid to toss the remainder of the water. (See the p. 8 diagram for the discarding location of hot water) Note: Please use necessary caution when disposing of hot water, it might cause burns or scalding.
8. Rinse off the inner container then wipe off any residue by using a soft sponge/cloth/paper towel. Assert caution when wiping the inner container as it is hot; allow it to cool down a little. Note: If mineral build-up persists, repeat the process.
9. To remove the smell of citric acid, boil only water as usual dispense approximately half of the hot water through the spout, and discard the rest of the water.

Troubleshooting

Check the following before asking for a repair

Symptom	Check	Action	Reference page
Water does not boil. (All the lamps are off and blank on display panel.)	Is the plug connected?	Connect the plug.	10
Does not start to boil after refilling the water. (Boil light does not lit)	Has the container been filled with hot water hotter than approx. 122°F?	Refill with either cooled water or cold water.	10
		Bring the water to a boil by pressing the Re-Boil / Timer key.	11
Hot water comes out on its own.	Is the water level above the “Max water level?”	Keep water below the “Max water level.”	10
There is a rasping sound when water is being boiled.	It is the sound of bubbles bursting which are generated by the water being boiled, and it does not indicate a problem.		9
	Did you select Energy Saving Mode cycle? Selecting other cycle during Energy Saving Mode, re-boil starts automatically. You may hear a boiling sound.		13
The sound of boiling seems louder than usual.	Is the inner container dirty?	Wash the inner container with citric acid.	17
Does not boil. (No steam)	Did you select Energy Saving Mode? Boiling will stop when temperature reaches approx.208°F to reduce the boiling steam.	Select boiling cycle with dechlorinate.	10•11
	Did you select Re-boil cycle? Re-boil cycle programmed to stop boiling below the boiling point.		–
The hot water smells.	Depending on the amount of disinfectant chlorine in the tap water, the chlorine smell may remain.	Select boiling cycle with dechlorinate.	10•11
	Did you select Energy Saving Mode? Boiling will stop when temperature reaches approx.208°F to reduce the steam.
	Although there may be a smell of plastic or other materials for the first several times, they become less noticeable with use.		–
	Did you place the unit on plastic tray or vinyl sheet? Water may absorb the resin smell.
The exterior of the unit is hot.	If the unit is kept warm in a room with a high temperature, the exterior of the unit may become hot. This is not unusual.		–
The inner container is dirty. White material is floating in the hot water.	This is caused by a reaction of the minerals contained in the water, and it is not discoloration, rust, or the peeling of the fluoropolymer surface on the inner container itself.	Clean the unit with Citric Acid.	17
The water is not hot enough.	Did you select Energy Saving Mode?	Press Temp.Set or Unlock key. Bring up to setting temperature in a minute.	13
	The first cup of hot water may not be very hot, because the water stored in the water pipe of the water volume indicator comes out first.		–
Water does not dispense using electric dispense key.	Was hot water dispensed while the unit was tilted?	Place the unit completely upright.	–
	Is the plug connected?	Connect the plug.	10
	Is it set to lock automatically?	Press the Unlock key once to dispense hot water.	11
	Is it immediately after the water has boiled?	Open the lid once while watching out for steam.

Water does not dispense using electric dispense key.	Are the mesh filter or the inside pump dirty?	Clean the unit with Citric Acid.	17
Display panels are fogged up.	Was the unit placed in an area prone to become wet or an area where the bottom can get wet?	Discard water, unplug, and leave until the panels are clear. If you still have cloud in the water scale, please contact customer service.	–

 

Display Message

Symptom		Check	Action	Reference page
The unit is equipped with Dry-Boil Protection. Boil lamp and Keep Warm lamp flash alternately and signs (as shown) appear on the display.		Is there no water or very little water in the container?	Unplug, and refill to above the refill level of the water volume indicator. Leave as is for a while, then plug in.	10
		Has the unit been left for a prolonged period after all of the hot water was dispensed, or has lid been left open while refilling with water?
Flashing Flashing	Flashing Flashing
		When refilling, is water being poured with excessive force?	Unplug, leave for a while, then plug in.
Boiling Lamp and Keep Warm Lamp flash alternately will appear on the display as shown on right. Flashing Flashing		–	When refilling or cleaning the heater, water may get inside the unit and cause problems. Request repair work from the Tiger product retailer where the appliance was purchased.	–

Specifications

		3.0 L Type	4.0 L Type
Capacity		3.0 L	4.0 L
Power source		AC 120 V 60 Hz
Power consumption	Rated power	682 W
	Power for the warmer	65 W
Exterior size (approximate) (with the handle pushed down) (inch/cm)	Width	8.4/21.2
	Depth	11.0/28.0
	Height	11.6/29.4	13.6/34.4
Weight (approximate) (including power cord) (lbs/kg)		5.1/2.3	5.5/2.5

• Specified functions cannot be guaranteed in some areas (high altitude, extremely cold regions, etc.) Avoid using the unit in such locations.

Where to buy replacement parts and accessories.

Contact customer service
Gaskets (Consumer replaceable parts) We recommend replacing the gasket annually or following these cases:

• The color changed to white.
• Any deterioration, spots become bigger.
• Steam coming out from gaps on the side
• Parts code PDA1090

Resin parts
Resin parts may deteriorate over time due to contacting heat and steam. The replacement lid is purchased separately.

Mesh filter (consumer replaceableparts)

• Attach a mesh filter when cleaning the unit with citric acid. If the mineral deposit is not removed, please purchase a new one.
• Parts code PVH1184

How to replace the lid gasket

How to remove

1. Unfasten the screws
2. Remove lid gasket

How to attach

1. Insert the lid gasket onto to inner cover in the proper position.
   
2. Run fingers around the inner cover to press into to groove

Attach 3 screws securely.

Caution
Do not remove the inner cover from the lid. Improper settings can cause steam leakage and hot water will not dispense. If the inner cover comes off, reattach the parts as shown below.

Replacing parts for the lid should only be done by a qualified technician. Please contact your local distributor or Tiger directly.

REFERENCE LINK

https://www.tiger-corporation.com

https://www.tiger-corporation.com/en/usa/product/kettle-pot/pdu-a30u-40u-50u/