Question about Comfort-Aire BHD-501 Dehumidifier

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Fan and compressor run but coils do not get cold. Also, Preset on control panel does not function.

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Your missing some gaz

Posted on Jun 24, 2009

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Why does compressor continue running, even with dehumidifier turned off?


Hello Bernard, thank you for your post!
I see that you are experiencing an issue with the Frigidaire dehumidifier, FAD704DWD, compressor consistently being on. This could be a possible issue with your control panel or sensor. Since it could be any one of these underlying issues I would suggest contacting the manufacturer for further assistance. Hopefully this information is helpful to you. -Matt

Feb 16, 2016 | Frigidaire a/c fad704dwd 70 pint...

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Dehumidifier


when ice forms on an evaporator unit (coil) there is an indication of internal problems with the unit. IT may occur if there is insufficient air flow ( dirty or fan speed to low ) but when this happens the thermostat just orders more gas through the tx valve and so more ice is formed then the thermostat reads it as too cold and so cuts the gas flow back by controlling the operation of the tx valve
Water from a dehumidifier will depend on the atmosphere humidity so the lower the humidity reading the less water collected
However I suggest that you have a technician check it out as the compressor start/run capacitor may be faulty and that is why the compressor is not getting hot as it may not be running properly

Jul 23, 2015 | Dehumidifiers

1 Answer

Compressor runs and gets hot but fan will not kick on. Replaced the capacitor and that did not help. One side of coils gets hot, the other side gets cold, which seems normal. Just can't get the fan...


Don't run the compressor for any length of time without the fan operating. Is it possible that the fan must be replaced? Can you power the fan safely to test it?
Gary

Jul 26, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

Need a repair shop in the baltimore area to look at my dehumidifier runs but wont pull water


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!

Jan 01, 2011 | Haier Dehumidifiers

1 Answer

Fan and compressor run but coils not cold and no dehumidification is happening.


If your compressor is running but the coils are not getting cold, then you have a problem in your refrigerant circuit.....Most likely a restriction or a leak with a leak being the more likely of the two.

Apr 30, 2010 | LG Dehumidifiers

1 Answer

Compressor and fan working but no water


Take the bucket out and remove the two (black colored phillips head) screws at the bottom of the front panel, just above where the bucket was. Push the bottom of the panel to the side a bit to release the retaining tabs from the metal side panels and pull the bottom of the panel forward to remove the panel from the top tabs, leaving wires attached. Put the bucket back in place and observe the coils while compressor and fan run for several minutes (5 to 10 minutes will do). If coils do not get cold, or only get cold over a small area, you have a refrigerant leak. A refrigerant leak is not economical to repair. Most dehumidifiers have a 5 year sealed system warranty, so round up your receipt and call LG with the model and serial number (located on a sicker behind the bucket) to get an exchange unit. Going from memory here, but I think you can reach LG at 1-800-256-0000.

Jan 25, 2010 | LG LHD45EL Dehumidifier

1 Answer

Unit runs but no water collects in bucket. Unit is over a year old and has run continuously that whole time. Up till now it has performed beautifully. Is it just worn out?


Hi;
Your dehumidifier is similar to a refridgerator or air conditioner. It has a compressor and coils, and a fan. Basically, the unit has to **** in air with it's fan, and as the humid air goes across the cold coils, the humidity condenses in to water. If the coils are not getting cold, they won't condense any water, or if the fan isn't running, or the coils are dirty. If you check your unit over, see if you can tell if anything isn't working. Make sure the control knob is set at the highest setting. If the compressor lost it;s refridgerant charge, and won't get cold, it isn't probably worth fixing

Nov 23, 2009 | Whirlpool 75-Pint Dehumidifier

1 Answer

Year 2005 cycling fan and compressor


Your unit is probably operating in defrost mode. When you use a dehumidifier in a cold room, the condensing coils can freeze water. The unit senses this and thus stops the compressor until the water frozen on the coils melts. Then it resumes its cycle. This is a problem you will have during the winter months. It makes the operation of the unit inefficient, but this is otherwise normal behavior.

Jan 04, 2009 | LG LD50EL Dehumidifier

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

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