Question about Vicks Warm Mist V745A 1 Gallon Humidifier

7 Answers

Reset light comes on, unit stops operating when tank is full

I completely cleaned all hard water deposits and inside of tank. Unit works for about 5 minutes expelling generous amounts of warm steam. Then unit stops, reset light comes on which indicates unit needs water. Tank is full. I turn it off...wait 5 minutes...turn it back on and it works great for about another 5 minutes when the unit stops, reset light comes on etc. Hope there is an easy fix. I have a sick baby that needs the humidifier. Thanks guys

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  • JTT1 Feb 19, 2008

    I had the same problem. At first the problem only occured on high, and like you I found that using the low setting (temporarily) resolved the problem. A couple of weeks later it started doing the same thing on the low setting. That is where I'm at now.

  • ngardeniac Feb 01, 2009

    I just purchased a brand new vicks warm mist humidifier today and when I turn it on, it automatically goes to reset light. Is there anything I can do to avoid returning it or is it just faulty?

  • Noah James
    Noah James Jan 27, 2012

    What I did is stretch out the spring in the valve. Similar to how you would stretch out a spring in a bath tub drain to keep the lever from dropping. This was easy, though it took a while to get there. ALSO make sure the rubber piece is on the inside and on the end of the black plastic pin with the open cone facing up. I'm pretty sure originally my piece was jammed in there or on the other side.

  • Anonymous Mar 18, 2014

    humidifier stopped working .. the tank and reservoir are full. When you turn on the light on dial flashes green.. nothing else. The fan does not turn on

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I was up all night with this since I just purchased it yesterday and I wanted to be certain that there wasn't some simple alternative to returning the humidifier since the reset light keeps going on immediately after I turn the unit on AND I've already followed all the directions to the T. Believe me - I was ready to return it cause ain't no 38.99 worth me doing all this tinkering and trying to figure out why they couldn't make the unit correctly cause apparently A-LOT of people have this problem. If it wasn't for my three children being so ill including myself getting sicker going out to purchase the humidifier and I was trying to avoid going back out to further compound my illness----I WOULD have just returned it. MAYBE I still will return it. ANYWAY, here's the deal: the water in the tank SHOULD flow into the boiling chamber where of course steam rises from there; however, the WATER VALVE in the CAP to the water tank does not allow any water to flow into the boiling chamber because it is so tight. The reset light goes on as if there was no water in the tank because of course, the heater is on, but no water is getting boiled because the water can't get in. There are a few things you can do. First: the water valve is a little stick and a spring within a piece of rubber that can be slipped out of the cap (this is what I chose to do). Now the water flows easily and even with the unit set to high, there is no problem. It just works. Second: You could remove ONLY the stick and spring from the water valve's rubber piece. This would work if the hole in the rubber piece happens to allow steady water flow (mine wouldn't). Third: you could probably do some cutting til you were satisfied with the results.

Posted on Feb 01, 2009

  • boom boom
    boom boom Jan 13, 2014

    I just found out this by myself so I hope it does the trick. 1) Remove the cap 2) remove the rubber from the sinkhole 3) Now you have to place them back except the rubber shouldn't be inside the hole, just place it on top. It

  • Kellie Davis
    Kellie Davis Nov 22, 2016

    I ACTUALLY PULLED THE SPRING AND EXTENDED IT THEN PUSHED THE PLASTIC PIECE BACK INTO THE SPRING "clearly THE SPRING is now waaaay longer" then attached it back to the dock. Flipped the switch and WALLLAAAA! I'm soooo happy this worked because my baby is so stuffy. Also, if you want more steam (like I do because it gets all in my 6 mth old) add some kosher salt. *A word of caution.. when I connected back to the dock water DID spill out. Soon as it did I said I DONT CARE* Small price to pay for longevity. Good Luck!

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OK, had the same problem. When reset light comes on, unplug humidifier and replug. This resets the reset...Now the light will turn green when you put it on I or II. Happy vaporizing!

Posted on Nov 11, 2010

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Thanks, ngardeniac! Took out the valve. Works fine. A little messy, but works fine.

Posted on May 09, 2010

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I have the same humidifier and found it was doing the same thing even though the water reservoir was full. But I fixed it! If you remove the water tank, the cooling chamber there will be a locking mechanism you just pull back with your thumb and pull out the double tray to access the heating chamber there was tons of hard water deposits and shards built up like no tomorrow over the heating pod. Unplug your device and scrape out all the gunk and either use your fingers and nails to scrape it off or use a sponge with a scouring side and make sure you rinse it all out including in the removable tray there will be some deposits in that too. After finding all this my humidifier worked like brand new!! Hope this helps everyone.

Posted on Mar 10, 2015

  • Imma Choi
    Imma Choi Jul 08, 2015

    This worked for me!

  • Michelle Widmer
    Michelle Widmer Apr 13, 2016

    Didn't work for me ??

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I have had the same problem with mine. For a while unplugging and replugging it would reset it. Then after a while that would only work if I put it on low after unplugging. Eventually none if it worked so I unscrewed the cap and pulled on the black washer/plug until it clicked back out. Then released. No overflow water problems because the washer is still there but I've forced it out so it understands there is water in the tank. Works just fine on high or low every time.

Posted on Feb 08, 2015

  • Jennifer Bee
    Jennifer Bee Mar 10, 2015

    Pull your unit apart and there is probably a ton of calcium/hard water deposits built up over the heating chambers that makes the device think there's no water. Clean all that out and it'll work like new again.

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Mine was full of water, orange light came on instead of green. I tried turning it off

Posted on May 04, 2011

  • ForTheBoys May 04, 2011

    Mine was full of water, orange light came on instead of green. I tried turning it off

  • ForTheBoys May 04, 2011

    Not sure why the site is cutting off my text. Here is my solution:
    Mine was full of water, orange light came on instead of green. I tried turning it off

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By setting the unit on I (low) instead of II (high) solves the problem. The unit doesn't produce as much warm mist as before, but it does run continuously until the tank is empty.

Posted on Feb 07, 2008

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This is the link to your manual:
http://www.crane-usa.com/manuals/HumidifierManual2008.pdf

CAUTION:
Always be sure that the appliance is unplugged and switched OFF before cleaning or attempting to store the item. NEVER PLUG OR UNPLUG UNIT WITH WET HANDS.
DO NOT leave water in water tank or water basin when unit is not in use as it may result in the build up of mineral deposits and bacteria that can inhibit the output efficiency of the humidifier.
PLEASE NOTE that if water remains in the water tank for more than a day or two, bacterial growth is possible.
ALWAYS use fresh cool water when using unit.
NOTE:
When removing water tank, water may accumulate under vapor lid and on the bottom of the water tank. It is recommended to have a dry cloth ready to dry wet surfaces.
DISINFECTING THE WATER TANK AND WATER BASIN
1. Fill water tank with 1 teaspoon of household bleach in 1 gallon of water. Let stand twenty minutes, shaking vigorously with two hands every few minutes, drain and rinse with clean water until the bleach smell is gone. Dry with a clean cloth or paper towel.

2. Wipe the water basin with a soft cloth dampened in the bleach and water solution. Rinse the water basin with cool water to remove any bleach smell. DO NOT IMMERSE WATER BASIN IN WATER.

3. Wipe all exteriors surfaces of the base with a soft, dry cloth. Do not immerse the base in water or use water to clean the base. An electric shock may result or the humidifier may be damaged.
NOTE: It is recommended to clean humidifier with water and bleach solution as stated above after using the humidifier the fourth time.

GENERAL MAINTENANCE AND CLEANING
Before any cleaning operation, switch the humidifier off and unplug it.
1. Always unplug the unit before cleaning.

2. The humidifier must be drained and cleaned before storing.

3. Once unplugged the exterior of the unit may be cleaned by wiping with a soft dry cloth. Caution: The ON/OFF switch must be thoroughly dry before unit is again plugged into power source.

4. There may be some lime deposits in the nebulizer, particular in areas with hard water. Overcome this drawback by cleaning the nebulizer with water and vinegar on a soft cloth regularly, as follows:

A. Dampen a cloth with vinegar and wipe the nebulizer gently, until the lime deposits disappear completely.

B. Rub down gently with a dry cloth and remove remains of humidity.

C. Do not rub the nebulizer with solid objects.

D. Do not clean with chemical products

5. When cleaning the water basin do not place the nebulizer directly under the water tap.

6. Never immerse the unit in water or let water enter the fan vent (see figure 3) or any other openings.

7. It is normal for water to be in the water basin. However water must not get inside the central body. If this should happen, take the humidifier to an authorized service center before using it again.

8. Clean the inside of the water tank at least once a week, as follows:

A. Fill the tank with clean water adding a few drops of bleach. Close the tank completely with its cap and shake by holding the tank with both hands. Do not hold by handle while shaking the tank.

B. Rinse thoroughly.
Water Level Sensor- The water level sensor is made of three key parts. When cleaning DO NOT MISPLACE these parts and MAKE SURE that you assemble these three parts correctly after cleaning and before operating humidifier. They are as follows:
Plastic Cap – this part has 4 flat tabs coming out from the bottom and is placed on top of a plastic pin.
Water Float - a small round part resembling a "life saver" candy located underneath the plastic cap.
Pin – plastic pin that secures water float and plastic cap.
To clean the water float unscrew the plastic cap from the pin. Remove the water float and clean by wiping the parts with a soft damp cloth. Replace the parts by first putting the water float onto the pin and re-screwing the plastic cap onto pin.



Good Luck.

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I was looking for instructions as well, because I thought I had lost the manual. But then my wife found it. According to pages 8-9 (I scanned the pages as well and posted it here):

CAUTION:
Always be sure that the appliance is unplugged and switched OFF before cleaning or attempting to store the item. NEVER PLUG OR UNPLUG UNIT WITH WET HANDS.

DO NOT leave water in water tank or water basin when unit is not in use as it may result in the build up of mineral deposits and bacteria that can inhibit the output efficiency of the humidifier.
PLEASE NOTE that if the water remains in the water tank for more than a day or two, bacterial growth is possible.

ALWAYS use fresh cool water when using unit.

NOTE: When removing water tank, water may accumulate under vapor lid and on the bottom of the water tank. It is recommended to have a dry cloth ready to dry wet surfaces.

DISINFECTING THE WATER TANK AND WATER BASIN
1. Fill water tank with 1 teaspoon of household bleach in 1 gallon of water. Let stand twenty minutes, shaking vigorously with two hands every few minutes, drain and rinse with clean water until the bleach smell is gone. Dry with a clean cloth or paper towel.
2. Wipe the water basin with a soft cloth dampened in the bleach and water solution. Rinse the water basin with cool water to remove any bleach smell. DO NOT IMMERSE WATER BASIN IN WATER.
3. Wipe all exteriors surfaces of the base with a soft, dry cloth. Do not immerse the base in water or use water to clean the base. An electric shock may result or the humidifier may be damaged.


GENERAL MAINTENANCE AND CLEANING
Before any cleaning operation, switch the humidifier off and unplug it.

1. Always unplug the unit before cleaning.
2. The humidifier must be drained and cleaned before storing.
3. Once unplugged the exterior of the unit may be cleaned by wiping with a soft dry cloth. Caution: The ON/OFF switch must be throughly dry before unit is again plugged into power source.
4. There may be some lime deposits in the nebulizer, particular in areas with hard water. Overcome this drawback by cleaning the nebulizer with water and vinegar on a soft cloth regularly, as follows:
A. Dampen a cloth with vinegar and wipe the nebulizer gently, until the lime deposits disappear completely.
B. Rub down gently with a dry cloth and remove remains of humidity.
C. Do not rub the nebulizer with solid objects.
D. Do not clean with chemical products
5. When cleaning the water basin do not place the nebulizer directly under the water tap.
6. Never immerse the unit in water or let water enter the fan vent (see figure 3) or any other openings.
7. It is normal for water to be in the water basin. However water must not get inside the central body. If this should happen, take the humidifier to an authorized service center before using it again.
8. Clean the inside of the water tank at least once a week, as follows:
A. Fill the tank with clean water adding a few drops of bleach. Close the tank completely with its cap and shake by holding the tank with both hands. Do not hold by handle while shaking the tank.
B. Rinse thoroughly.

Nov 12, 2007 | Crane Cat EE-3187 1 Gallon Humidifier

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