Question about Haier HD451E Dehumidifier

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Compressor runs but coils don't get cool to shed water

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If the compressor is really running (not just the fan) and it doesnt cool the evaporator coils then it has lost its refrigerant (likely r134a) .. thats a special job to repair.. there also has to be a leak that must be repaired .. then the system is refilled and possibly a dryer added .. if the fan is running only, then there are many other possibilities .. .. you shouldnt run the unit long since part of the cooling for the compressor comes from the refrigerant .. it will shorten its life if run a long time without it ..

Posted on Aug 01, 2009

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1 Answer

Runs but doesn't work (no water accumulates)


It sounds like what you hear working is the fan. The unit also has a compressor; if the compressor is bad or the freon is gone, the fan will run but the coils wont cool to remove moisture from the air.

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Does'nt not take the moister out of the air, the fan is on but it does'nt fill up with water


Is the coil cooling? If not it may have leaked the freon out or have a bad compressor. Dehumidfiers work in the same way an air conditioner does to condense moisture out of the air. If the coils don't cool, they will not work.

Jun 26, 2011 | Danby Dehumidifiers

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Compressor seems to be overheating although top is cool. Continues to run but doesn't collect water. Fan is working. Can't locate model number.


If the compressor motor is overheating, it's usually a result of low refrigerant gas in the cooling coils. Recharging is an option, if you can find a shop that will do it.

May 22, 2011 | Kenmore 54501 Dehumidifier

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Compressor running very hot but almost no cooling. Fan running


make sure the coils are clean both evaporator and condenser,then if there is a capacitor in the motor circuitry,check this,finally if the coils frost,then clear up and frost and clear up time and again,this is a sign of low refrigerant R134a,and this also will make the compressor run hot

Apr 09, 2010 | Haier 45-Pint Dehumidifier

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Unit runs and you can hear the compressor come on but it is not pulling any moisture out of the air


if it seems to be running normally except no cooling , is the fan in the house running????...Is the house Cold and damp???.If there is no cooling and you know that the compressor and everything else appears to be normal then you likely have a Refrigerant leak and that will cause no cooling.....Usually a very expensive repair...if your unit is 5-10+ yrs old you likely need a new "A" coil.

Oct 29, 2009 | Goldstar DH504EL Dehumidifier

1 Answer

Runs but does not collect water.


compressor run but gas charge not enought
so it not very cool,and no water come out

Aug 23, 2009 | LG LHD45EL Dehumidifier

1 Answer

AmanaD545M Runs but no water comes out


if the compressor is running and the coils dont cool, then you have a refrigerant leak or a plugged capillary tube. it would cost more to fix than to but a new one. sorry but its time for a new one.

May 11, 2009 | Amana D545M Dehumidifier

1 Answer

Kenmore dehumidifier runs but won't collect water


Hi,
If you haven't done so already, try removing and cleaning the inlet filter screen which is almost certainly just behing the inlet grille. It may slide upwards out of the casing or downwards unto the bucket area. If this is blocked with fluff then no moist air will get to the cold pipes, so little or no water will be extracted. There's also a chance that the humidity sensor is clogged with fluff, so fooling the system into thinking the room is pretty dry, in which case the compressor will probably not run.
A running compressor can usually be detected as a deep throbbing from the machine. If it is running, but not cooling the pipes behind the intake grille, then you may have lost the refrigerant from the system via a leak. If the air coming out of the machine is warm (caused by the compressor running) but there is no water produced this may be the cause.

Explore along these lines and let me know what you find.
Cheers, D

Jul 31, 2008 | Dehumidifiers

1 Answer

Running but not collecting water...


Dehumidifiers have only a few components, and operate on the same principle as a refrigerator, freezer, or air-conditioner.
Components Residential dehumidifiers have a cooling system made up of these primary components:

  • The compressor is the quiet motor (engine) of the cooling system. It's the black, football-size component at the bottom of your dehumidifier. The compressor runs as long as the dehumidifier humidistat (the humidity-sensor) calls for a reduction in the humidity.

  • The condenser is a series of finned tubes, similar to a radiator. It's usually near the circulating fan.

  • The evaporator is located near the back of the dehumidifier, right above the water-collection container. It also resembles a radiator or a coiled-up set of tubes. When the dehumidifier's humidistat senses increased humidity, it cycles on, which starts the compressor and circulating fan.

  • The circulating fan circulates the air over the evaporator and condenser coils.

Principle When the unit runs, the circulating fan and compressor also run. The fan continually draws room air over the evaporator coils, which are cold, and then over the condenser coils, which are warm. Because the evaporator coils are cold, the moisture in the room collects on them--just as the outside of a glass of icy liquid "sweats" on a warm, humid day. When the moisture on the coils increases, it drips off of the coils into the collection container.

The air then flows over the warm condenser coils and out into the room. This process removes water from the air and, because of the heat from the fan motor and compressor motor, the exiting air is somewhat warmer, as well as dryer.

Jul 29, 2008 | Maytag M7DH65B2A Dehumidifier

1 Answer

No Water


Check to see if the coils are cooling down. When the coils are cooling down, they make condensation on them, which is moisture from the air. This moisture drops down in to the tray. This is the water that is accumulated.

If the coils are not getting cold, this can be a problem with the workings of the cooling system. There are a number of hoses, pipes, the compressor, evaporator, and other parts involved that can have a problem. It is also possible that the gas has leaked out of the cooling system due to a leak that has formed.

If the compressor is not starting up, this can also be from a defective humidistat, or there is a fault contiditon that put it in to a protection mode.


Jerry G.

Jun 16, 2008 | Goldstar DH504EL Dehumidifier

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