What causes dehumidifier to ice up?

Reply

  #1  
Old 07-18-16, 09:12 AM
G
Member
Thread Starter
Join Date: Nov 2007
Location: MI
Posts: 2,636
Received 1 Vote on 1 Post
What causes dehumidifier to ice up?

One of the 2 units running in my cottage basement is icing up. Coils are clean & there's good air flow around it. Seems to cycle on & off correctly (compared to the one with no problem). I noticed when I removed the catch basin to clean it. Once the ice melted I found the temperature probe had popped off the evaporator so I thought that was the culprit but it still iced up after pressing the probe back into place.
 
Sponsored Links
  #2  
Old 07-18-16, 09:22 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,125
Received 1,113 Votes on 1,033 Posts
The incoming air is too cold or loss of refrigerant can cause the evaporator coil to ice up.

The temperature sensor is usually positioned very close to the evap coil so if ice builds up it will shut off to defrost.

Make sure the filter is clean.
Try turning the humidity level setting up slightly.
 
  #3  
Old 07-20-16, 06:55 AM
G
Member
Thread Starter
Join Date: Nov 2007
Location: MI
Posts: 2,636
Received 1 Vote on 1 Post
OK so if everything is clean and it's in a normal environment with average air temperatures surrounding it...is it unusual for it to be low in refrigerant and not show any signs of a leak (oily spot, corrosion, etc)?
 
  #4  
Old 07-20-16, 09:03 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,125
Received 1,113 Votes on 1,033 Posts
is it unusual for it to be low in refrigerant and not show any signs of a leak
Not at all. There is only a small bit of oil and it doesn't leave the compressor.
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: