20 Most Recent Haier HDN455 Dehumidifier - Page 8 Questions & Answers

It's cold outside. If the temperature is too low, the cold coils will just frost up and you won't get much water 'pulled'.
Check to see if the cold coils actually are getting cold when the unit is running and the control is set to cause the compressor to work-not just the fan.
If the coils are cold and full of frost or ice, the room is too cold for the dehumidifier to work. You'll have to raise the temperature of the room or wait for warmer weather.
If the coils never get cold, the compressor might be bad or the unit might have lost its freon.
I wonder, though, if it's just too cool and dry right now for a dehumidifier to be pulling more moisture out of the air.
Hope this helps!

Hello
On some models you need to remove the hose adaptor from the back of the dehumidifier before sliding in the collection bucket.

Also check the legs or stands it sits on are not blocking the collection bucket.

Hi,

Did a little search and the first part that came up for that model is the control board....that should tell you something....it is the most commonly replaced part...

That is what is wrong with your unit...

The aprt is 100 bucks and is out of stock... but here's the url for the part...

http://www.appliancefactoryparts.com/search/partinfo.php?partsID=1080165&modelsID=151646&typeName=dehumidifier

heatman101

Even thought this a problem with just one relay included on the control panel which is stuck to the on position, the solution is to replace the whole control panel.

Did you purchase it out of a store or from a 3rd party?

Hi,
Dehumidifiers can run 24/7 no problem.....leave it run....

heatman101

Hi,

Here is a tip that gives a further explanation of that E-1 code. The causes of the E-1 code can be varied depending or the brand of your air conditioner.

Read through this tip... it will help you understand what is happening with your window air conditioning unit and give you some things to try to help you get your problem resolved.

E-1 Code on Window Air Conditioning Units

heatman101

Hi,

With the unit unplugged, open the cover and check the alignment of the fan. If the fan is stuck or rubbing against the fan cowling, adjust the fan motor's mounting hardware so that the fan turns freely.

Take care.

Hello,

First, make sure the reservoir is empty. If you plug the unit in and see a green power light, but the unit won't run, make sure the reservoir is properly inserted.

Many dehumidifiers have switches or sensors to make sure that the reservoir is placed so that it won't leak. Look for these sensors and make sure the reservoir is engaging them.

If your dehumidifier has a float or switch to indicate a full reservoir, make sure this switch isn't being tripped accidentally.

I hope this helps.

Take care.

Hi, If you have a dehumidifier that is not producing anywater then you are wondering what you need to do to get this thing to work for you. In some cases you may be able to do something and in other situations there may be nothing that you can do.

If you do not hear the compressor running and the unit says that the humidity in the room is higher then the setting, then you have a problem with your dehumidifier.

A few things that can cause this are:

The circuit board relay has gone bad…replacement of this board will often cost more then a new unit. This also is a very common problem with many dehumidification units.

The compressor has failed…if you hear a buzz for a few seconds, every few minutes, then you have a bad compressor or at least bad start components on the compressor. Either way it again is a costly repair.

If the compressor is running and the coils are not getting cold then you have a refrigeration system leak. Recharging or fixing these units is very difficult and is another costly venture compared to the price of a new dehumidifier.

If the compressor is running but the fan is not, this also will cause low water production and continual freezing of the coil.

If the compressor and the fan are running but the coil is totally blocked then you will get no water production. Air needs to be continually moved over the cold coil to get the water out of the air.

If nothing is running, then you may also have a control board failure. Or the humidity sensor or humidistat has gone bad which tells the machine to run. If the sensor says that the humidity is low enough then it will never run.

Also if nothing is running check the float switch or the bucket switch. Many of these switches are very touchy and if you do not have the bucket in place just exactly right it will not trip the switch to allow the unit to run. These switches often are more fragile then they should be and break easily. The good thing is that when available they are easy to replace and relatively inexpensive.

There are some parts available for a few brands, but with the prices for most of the parts that you can replace running anywhere from 40.00 – 80.00 dollars, replacement parts with labor to install them, makes a repair more then the few hundred dollar cost of many of these dehumidifiers.

As you can see there are quite a few things that can cause your dehumidifier not to work. Systematically go through the list and eliminate things to get to the bottom of the issue causing your problem and then decide if it is worth spending the money to try to fix the old unit. Only you can make that decision.

One of the major faults with dehumidifiers is damage and electrical ''tracking'' caused by the dampness they are constantly exposed to. Isolate the supply completely ! from the unit then carefully inspect all electrical parts for corrosion and ''blow'' marks. Check motor for shorts to earth as this occurs on old elec motor windings. Also inspect carefully the control contactor / relays that switch motor and fans.

Hi, there are several reason for this problem which includes:
Poor air flow from a slow fan or the fan motor may have quit completely. Dirty coils, may need to be steam cleaned.
Until too close to the wall giving poor air flow.
Dehumidifier have compressor inside, it may not be running due to a bad start relay or a bad compressor of faulty float switch.

Take care

than you should see why the sensor still indicates that is full...just ope and chack again to be placed in proper way ...than if all ok...try to reset it ...if it has a reset button just press it and hold it down ..if not just shut it down ..remove from the plug ...and after a while plug t again ..and when power it ...keep the button pressed fro a few seconds..most devices are reset this way ..
if it has a display and a menu ..look in the menu for reset options ...

The unit shuts down when set at 50% because the controller is sensing that the humidity is below 50% RH. It comes on when set at 38 because the RH is higher, so it will try and dehumidify down to 38% RH.
According to the EPA the ideal RH in a conditioned space is 48 to 54%. You can set it and leave it at 50% if you are comfortable there and the dehumidifier will automatically come on when the RH is above 50% and will automatically turn off when the RH is 50% or below.

your indoor temp of 60 degrees is way to low to make the unit operate properly,you need at least 65 to 70 + degrees then it will operate as normal

is the fan blowing air out?

If so, there may be a coolant/compressor problem

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