Reply
 
Thread Tools Display Modes
Old 05-21-2016, 08:50 AM   #1
Member
 
Join Date: Oct 2014
Posts: 38
AC

I have a 2015 model Coachman Freedom Express Liberty model travel trailer. Last trip out AC quit working would blow air but would not cool. Outside temp was around 85 and inside temp 96. We were at Bennett Spring Mo. and a neighbor at the campground recommended a repair man. Gave him a call he came out checked everything and found nothing wrong with the compressor but the coil had frozen up. long story short the coil kept freezing up with ice so called him back to see if he could add Freon. Was told no way to add anything the units are disposable and just have to be replaced. Is this correct? Thanks have a secondary warranty but the dealer says he can't get in in and fixed in time for our next outing June 7. Thoughts and the disposable unit part. Thank you all in advance.
twosocks is offline   Reply With Quote
Old 05-21-2016, 08:58 AM   #2
Senior Member
 
Join Date: Feb 2015
Posts: 705
They can be charged, just takes a little work. The problem is if they have to be charged then it has a leak and that has to be fixed as well. Unless you can do something like that yourself then the cost to repair is more than the cost to replace and that is what makes it disposable.
__________________
2019.5 Rockwood 2509S
Toddupton is offline   Reply With Quote
Old 05-21-2016, 09:19 AM   #3
Site Team
 
Flybob's Avatar
 
Join Date: Oct 2014
Posts: 11,693
If the problem is just the coil icing up, open the quick dump vent until the TT is cooled and the humidity drops, then close it over time. That has worked well for me. The ducting system sometimes does not allow sufficient air flow to keep the coil from freezing up if it is very hot and humid. If it is a loss of freon issue, the manufacturer is aware that they had a bad shipment and that they can corrode and lose the coolant. Contact your dealer or a local RV repair facility that sells Dometic and they will replace it. it is about a 2hr job.
__________________

2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
Flybob is online now   Reply With Quote
Old 05-21-2016, 10:21 AM   #4
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
Make sure the freeze sensor is in place and located in a central position on the coil .
then do what flybob says use the quick dump. freezing up is not something they would replace the ac over . adding Freon wouldn't change anything if you could add it but you can't no ports . these units are disposable
northstar1960 is offline   Reply With Quote
Old 05-21-2016, 02:00 PM   #5
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 8,138
Second the freeze coil. It's about the size of a stack of half a dozen quarters, and should be clipped right to the evaporator coil.

We had one that kept freezing up and once i found out that the freeze coil was supposed to be clipped to the evap coil, I found it hanging lose near the coil. Once I clipped it directly to the evap coil, it never froze up again.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is online now   Reply With Quote
Old 05-22-2016, 08:53 AM   #6
Member
 
Join Date: Oct 2014
Posts: 38
Thank you for replying. When you said manufacture was aware that they had a bad shipment. Did you mean Coachman or Dometic? Thanks
twosocks is offline   Reply With Quote
Old 05-22-2016, 08:57 AM   #7
Member
 
Join Date: Oct 2014
Posts: 38
This is my first RV could you post pictures or be a little more detailed about the freeze senor. I have no idea what to look for. Thanks.
twosocks is offline   Reply With Quote
Old 05-22-2016, 12:32 PM   #8
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
do you have a dometic or coleman mach ? the freeze sensor you can see when you pull the inside cover off with the filter in it . it should be stuck in the coils about center . a wire going to it and about the size of a smashed cigarette butt only white . if it 's not in a good location or if not in far enough or even slipped out it could cause freeze up .
you can move it to a center location and make sure it's shoved into the coil fins good
northstar1960 is offline   Reply With Quote
Old 05-22-2016, 12:36 PM   #9
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
another thing to look at while in there is how well sealed it is . sometimes they do not do a good enough job sealing it off and you may need to duct tape or aluminum tape it up better . if i could post pictures i would but can never seem to get that to work.
it's the space between the intake where the filter is and the dump port . if it's not sealed well it will allow already cooled air to recirculate back over the coils causing freeze ups
northstar1960 is offline   Reply With Quote
Old 05-22-2016, 12:39 PM   #10
Senior Member
 
Iwannacamp's Avatar
 
Join Date: Aug 2013
Posts: 7,782
There were problems with units about that age. Some sort of soldering issue. You can research model/serial number to see if applicable. Yes. Low of refrigerant will cause icing...so will other things.


Sent from my iPhone using Forest River Forums
__________________
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas
Iwannacamp is offline   Reply With Quote
Old 05-22-2016, 12:46 PM   #11
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
Quote:
Originally Posted by Iwannacamp View Post
There were problems with units about that age. Some sort of soldering issue. You can research model/serial number to see if applicable. Yes. Low of refrigerant will cause icing...so will other things.


Sent from my iPhone using Forest River Forums
the issue was with not adding a anti corrosive in the mix and that allowed the solder joint to corrode and leak the refrigerant . now tell me how low refrigerant will cause icing when it' won't even get cool let alone cold. I've only replaced about 20 of the dometic AC upper units over the last 7 months and have never come across one that froze up when the refrigerant had mostly leaked out
northstar1960 is offline   Reply With Quote
Old 05-22-2016, 01:23 PM   #12
Senior Member
 
Iwannacamp's Avatar
 
Join Date: Aug 2013
Posts: 7,782
AC

You can do your own research. On the pressure/temperature there is a window of time where the refrigerant pressure/temp gets below freezing and causes icing. Very common in R-22 and R-12 systems. You prolly won't be fixing any 12 units.


Sent from my iPhone using Forest River Forums
__________________
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas
Iwannacamp is offline   Reply With Quote
Old 05-22-2016, 01:45 PM   #13
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
Quote:
Originally Posted by Iwannacamp View Post
You can do your own research. On the pressure/temperature there is a window of time where the refrigerant pressure/temp gets below freezing and causes icing. Very common in R-22 and R-12 systems. You prolly won't be fixing any 12 units.


Sent from my iPhone using Forest River Forums
won't be fixing any dometic or colemen units as they are not made to be recharged . the low refrigerant issue does not normally cause freezing . if the unit is low on refrigerant the out put temps will show it and freeze up will not be the issue . the units we have on our RV's are cheaper to replace then try to sliver solder in ports and recharge . don't need to do anymore research .
northstar1960 is offline   Reply With Quote
Old 05-22-2016, 04:16 PM   #14
Senior Member
 
Todouble's Avatar
 
Join Date: Nov 2013
Posts: 849
Low on refrigerant causes lower system pressures which will make any A/C freeze up regardless of refrigerant type. As long as there's moisture in the air and your low side refrigerant temp is below 32 degrees your gonna get icing. It's a shame these units are designed as throwaways but an hour or two of mechanics time and few materials eats up what a new ac cost so.....
Todouble is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 04:58 PM.