Fridge evaporator icing up fast - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 03-22-2007
gilsurf's Avatar
Beneteau 440
 
Join Date: Dec 2006
Location: St. Thomas, US Virgin Islands
Posts: 55
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
gilsurf is on a distinguished road
Fridge evaporator icing up fast

I am in the VI and have a Grunet 12 V water cooled fridge. The evaporator seems to be icing up quickly and thus the frezer lid hinges become stuck. I know that it is an issue of how hard the unit is working, how much the box is opened, and how cold it is set to. I have tried ease up the tem and this helps, but then temp is an issue. We have 2 kids and we are in the box 3 meals a day, etc.

Any tricks here? Any quick way to de-ice the hinges? Hot water OK? I would assume not a good option due to fast expaansion?

Thanks!
Reply With Quote Share with Facebook
  #2  
Old 03-22-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Sounds like you have an air leak in the box... that's probably why it is icing up so much... the humid air keeps leaking in and condensing out, turning into ice. Have you checked the seals on the refrigerator box?

One common culprit is the drain to the bilge. If that doesn't have a trap in it, it will let the cold dry air out and warm humid air will tend to flow back up into the freezer and cause icing.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #3  
Old 03-22-2007
gilsurf's Avatar
Beneteau 440
 
Join Date: Dec 2006
Location: St. Thomas, US Virgin Islands
Posts: 55
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
gilsurf is on a distinguished road
Seals on the lids? Or around the box itself? Seals on lid look like they could surely use some help. Place to start with these?

Interesting note on the drain. No trap. Simple trap idea?
Reply With Quote Share with Facebook
  #4  
Old 03-22-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Make the drain look like the p-trap on a household sink... it'll fill with a little water, but the cold air will stop at the water, and the warm humid air will stay in the bilge.

The seals on the lid are a good place to start, but I think the culprit is more likely the drain, especially if the refrigerator is top-loading. If it is sideloading, then it could be either. Sealing around the box wouldn't hurt either.

Hope that helps...
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #5  
Old 03-23-2007
Senior Member
 
Join Date: Dec 2002
Posts: 552
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
GordMay is on a distinguished road
Install a Barbed PVC Ball Valve in the drain line (as close to the bottom of the box as practical). The valve is normally closed (effecting a trap), and only opened for completely draining or cleansing the box. A conventional “P” trap will (& must) always* retain some water, which can go stale or swampy.
226 SERIES BALL VALVE: http://www.specialtymfg.com/plastic_...ve/default.asp

* excepting due to evapouration during a long dry spell (no melt water, whatever).

Last edited by GordMay; 03-23-2007 at 09:37 AM.
Reply With Quote Share with Facebook
  #6  
Old 03-23-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
I prefer to use a p-trap as they're generally easier to maintain... the amount of water we're talking about is measured in milliliters, so having it go stale or swampy isn't a really huge issue IMHO. The ball valve requires more maintanence and probably takes up more space, as you need to be able to turn the valve handle.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #7  
Old 03-23-2007
Senior Member
 
Join Date: Nov 2006
Location: Massachusetts
Posts: 376
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Goodnewsboy is on a distinguished road
You must prevent air exchange when the box is closed. The lid/box joint presents way more potential airflow than any drain.

Replace/repair the lid seals immediately.
Reply With Quote Share with Facebook
  #8  
Old 03-23-2007
Senior Member
 
Join Date: Jun 2006
Posts: 2,394
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 11
cardiacpaul is a jewel in the rough cardiacpaul is a jewel in the rough cardiacpaul is a jewel in the rough
it could also be the reciever/dryer, or the expansion valve. (or low freon)
__________________
We are not primarily on earth to see through one another, but to see one another through

Some people are like slinkies: not really good for anything... but you can't help laughing when you push them down the stairs
Reply With Quote Share with Facebook
  #9  
Old 03-23-2007
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,904
Thanks: 3
Thanked 110 Times in 53 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Another idea is to stock the crap out of your fridge. Stuffed as much as you can. A filled fridge will reduce the air, reducing the humidity, reducing the condesnsation. It will run more efficiently and will freeze up less. CP is right, if you are low on freon, the lines will freeze. However, it sounds more likely that you are introducing a lot of moisture into the box to me.

Make sense?

Also, I wrote a thread called refrigeration conservation, it is on this board and cruisers forum. Hopefully that will help. If you don't want to go to a lot of trouble on the drain line, just stick a cork in it.

Fair Winds.

- CD
__________________
Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 03-23-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
GNB-

If the box is top-opening, it is far more likely to have air exchange caused by the drain rather than the door seals due to the fact that cold air is denser and heavier than warm air.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sailing: Jelik dominates fast boats (New Straits Times) NewsReader News Feeds 0 02-08-2007 08:15 PM
Fast = Smart @ Proper Course NewsReader News Feeds 0 04-07-2006 07:15 PM
How fast is to fast eric97217 General Discussion (sailing related) 5 04-27-2004 01:53 PM
This is what Im looking for... JonAO Boat Review and Purchase Forum 5 08-20-2003 05:33 AM
Dolphinite Go Fast bottom paint chris1514 Racing 1 06-22-2003 09:00 AM


All times are GMT -4. The time now is 08:06 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.