Question about Maytag M7DH65B2A Dehumidifier

3 Answers

Coils Ice Up and nothing is dehumidified

I noticed that the coils had a build up of ice and no water was building up in tray. I removed the filter and cleaned it. I let the unit defrost completely. Then I started the unit back up. The coils are still building up with ice and still no water in tray. Any solutions?

Posted by on

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

If the coil is clean, then have a tech check for a low charge. This will cause the coil to freeze up. Humidifers are known to lose gas and owners aren't told this so end up buying new one and scraping the old one. Trust me on this. I have seen this many times. I repair high end machinery as my business.

Posted on Aug 14, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Problem: Coil frosts up and prevents air flow. Then a solid mass of ice forms and finally drips into the pan - but power consumption goes out of sight. Air must flow to achieve results. Possible simple "home made" solution. Send air from outflow side back to inlet side to increase temperature at inlet with partially dehumidified air. Make an "ear ****" of pipe that you place over the machine by resting it on the top. It will take (4) pipe elbows and a short straight piece at the top to do this. You could also do this with an aluminum expandable metal dryer vent hose if you can figure out how to hold it in position. I would start with 4 inch. gas hot water heater vent pipe elbows and probably about 16 inch length of straight pipe. Put the "****" on the dehumidifier until the humidity gets below the irritating frost level. Then remove the "****" to achieve maximum performance. (Note: the area around the "****" will frost up and all the air will go through the coil just behind the pipe. When the coil starts to melt out from the center portion, then you are almost ready to remove the "****") Leave the filter off until you reach the no frost condition.

Posted on Jun 10, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Im no expert but obviously a dehumidifier works by cooling the air to condence it from a gas (vapour) to a liquid. For some reason yours is cooling it even more and turning the vapour into a solid (ice). Therefore it must be cooling it too quickly, the only thing I can think of would be to turn the temp up somehow. Is there a dial you can adjust (humidistat)?

Posted on May 31, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

When set in smart mode it runs continuously and the core ices up this results in the filter not being able to be removed. water then runs all over the floor. This also happens in normal mode Very li


Ice builds up for two basic reasons:
  1. Impeded air flow. This causes the dehumidifier to run constantly as the humistat never reaches it setpoint as there is limited or no airflow over the coils. Even with a filter, the cooling coils can become clogged and render airflow restricted or non-existent. Check and correct as necessary.
  2. A low refrigerant charge. Systems can leak over time and become low on charge. This causes extended period of running and the resultant freeze-up. If the coils and filter are clean, have the system checked for proper charge of refrigerant.

Jan 02, 2015 | Dehumidifiers

1 Answer

Idylis 0526051 dehumidifier - ice build-up. After 7 months of use this started to make a laboured noise that was audible the floor above. I switched the unit off and noticed what appeared to be a "check...


Dust and dirt that causes loss of airflow through the coils is the most likely cause. The only other reason would be a low refrigerant charge to the compressor.

Dec 26, 2014 | Dehumidifiers

1 Answer

Dehumidifier freezes up


Good Afternoon Friend,

I understand your Frigidaire dehumidifier, model# FDF50S, is freezing up. I see that the compressor does not shut off, causing ice to build up on the coils, rather than water draining off. What can cause this is your dehumidifier has been turned on recently. This is normal due to refrigerant rushing through the coil. Frost will usually disappear within 60 minutes. Another cause is if the room temperature is too low or too high. Your appliance is designed to operate between 41 degrees F and 96 degrees F. I suggest resetting your appliance, by either unplugging it or shutting the power off at your home's circuit breaker, for 3-5 minutes. Restore power and start any cycle. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully. Hope this is helpful.

-Best Regards-
WP

Jun 29, 2014 | Frigidaire FDF50S Dehumidifier

1 Answer

BHD-651D purchased 9-9-08 Ice builds up on coils. Filter and coils/fins clean. Air temp 72 F


What is your humidistat set at? Could you be trying to get to too low a humidity? Try to determine what the humidity is and set the stat just below that. In that way, once it reaches the setpoint, it will cycle off, allowing the coils to warm up.
If that works, lower the setting a bit more & see results.
Write back.

Gary

Aug 25, 2011 | Comfort-Aire BHD-501 Dehumidifier

1 Answer

Immediate ice build up on coils no water in tank?


Hi,

Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

Jul 10, 2011 | Goldstar Dehumidifiers

2 Answers

What can I do to prevent my Dehumidifier from building up a heavy coating of frost over all the condensing tubes. The dehumidifier is currently located in the basement.


The frost is requried for the unit to do it's work. The unit should routinely turn off and the ice should melt. without this process no water would be removed from the air....

Apr 10, 2011 | Dehumidifiers

1 Answer

This summer I have ice build up on top of the unit. I have a drain hose so the bucket is not full. I have cleaned the air filter. I have also removed the front grill and used a fine brush to remove dust...


Hi,

The coils you see on the back of your dehumidifier are the evaporator. When the unit runs, the coils get very cold. As the fan draws the room air over the coils, the humidity in the air condenses out of the air onto the cold coils. But, if the temperature of the air the fan draws over the coils is too cool, the humidity that condenses out of the air freezes on the coils.

To remedy this problem, you can try any of these:
Warm up the room the dehumidifier is in.

Put the dehumidifier on a sturdy table (the room air is coolest near the ground).

Turn the unit off until the room warms up.

Take care.

Aug 12, 2010 | LG LHD45EL Dehumidifier

1 Answer

Coils freezing up, is this normal during operation?


Check fan speed. Also if coil (it's the evaporator) is clean.

Jun 02, 2010 | Maytag M7DH45B2A Dehumidifier

1 Answer

Ice build-up on Danby Dehumidifier DDR583R


Make sure you have enough air moving over the coils. There is an air filter on some models which may be obstructed. Insufficient air flow will cause your problem.

Sep 17, 2009 | Danby DDR583R Dehumidifier

Not finding what you are looking for?
Maytag M7DH65B2A Dehumidifier Logo

1,218 people viewed this question

Ask a Question

Usually answered in minutes!

Top Maytag Dehumidifiers Experts

Michael Van Der...
Michael Van Der...

Level 2 Expert

66 Answers

Bill Long

Level 3 Expert

587 Answers

Mike Squire

Level 2 Expert

420 Answers

Are you a Maytag Dehumidifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...