Reply
 
Thread Tools Display Modes
Old 05-24-2015, 08:29 PM   #1
Junior Member
 
Join Date: May 2015
Location: Vanceburg Ky
Posts: 14
A/C runs for hours in 80 , 85 degree temps.

We have a 3 week old 8528ikws parked in Ky. The A/C runs for hours with out a cycle. Dealer says it is working like it should. Anyone else having this kind of problem? Dealer says he upgraded to a 15000 btu unit. My first post did not have much info.
__________________

__________________
kyman is offline   Reply With Quote
Old 05-24-2015, 08:48 PM   #2
Member
 
Brazealnut4's Avatar
 
Join Date: Feb 2013
Posts: 72
Our AC did something similar. It's a '15 27RLWS WITH A 15K BTU unit. Turns out we had too many electronic devices turned on simultaneously. We were drawing too many amps and the AC compressor was shutting off but the fan continued to run. Is your unit still running cold all the time? Or just cool?
__________________

__________________
Mike
2015 Flagstaff 27RLWS Emerald Package
2013 Ford F150 STX 5.0 V8 3.55
Brazealnut4 is offline   Reply With Quote
Old 05-24-2015, 08:59 PM   #3
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
Quote:
Originally Posted by kyman View Post
We have a 3 week old 8528ikws parked in Ky. The A/C runs for hours with out a cycle. Dealer says it is working like it should. Anyone else having this kind of problem? Dealer says he upgraded to a 15000 btu unit. My first post did not have much info.
To get the unit to cycle, I set my thermostat to 10 degrees below outside air temperature. The unit needs to cycle in order to dehumidify and not ice up.

I have to add that 90 is the max setting we used even in temps above 100.

Setting the thermostat too low will cause frost to build up on the fins and the ice detector will shut down the compressor. This happens a lot with 15K BTU air conditioners like our Coleman Mach III. (Yes, the fan continues to run in this scenario. After the ice melts, the compressor will start up automatically, but the ice will form again repeating the cycle.)

Another cause of cycling problems is leakage of cold air into the intake plenum. If the barrier between the intake plenum and the forced air exit duct is not sealed properly, the colder air going into the intake plenum may "trick" the frost sensor into thinking the cooling fins are frosted when they are not. Again, this will shut the compressor off, yet leave the fan running.
Attached Images
 
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is offline   Reply With Quote
Old 05-24-2015, 09:20 PM   #4
Junior Member
 
Join Date: May 2015
Location: Vanceburg Ky
Posts: 14
Thanks for the info

Quote:
Originally Posted by Brazealnut4 View Post
Our AC did something similar. It's a '15 27RLWS WITH A 15K BTU unit. Turns out we had too many electronic devices turned on simultaneously. We were drawing too many amps and the AC compressor was shutting off but the fan continued to run. Is your unit still running cold all the time? Or just cool?
We are not near the 8528 right now, will be back at it in July. Dealer said they would check it, I just want some info to see if they are checking what they should. We are sort of new, just our 2nd one also we do not pull it.
__________________
kyman is offline   Reply With Quote
Old 05-24-2015, 09:24 PM   #5
Junior Member
 
Join Date: May 2015
Location: Vanceburg Ky
Posts: 14
Amps

Quote:
Originally Posted by Brazealnut4 View Post
Our AC did something similar. It's a '15 27RLWS WITH A 15K BTU unit. Turns out we had too many electronic devices turned on simultaneously. We were drawing too many amps and the AC compressor was shutting off but the fan continued to run. Is your unit still running cold all the time? Or just cool?
It was still a little cold, about 50degrees. Dealer will check it out when we get back. Thanks for your reply.
__________________
kyman is offline   Reply With Quote
Old 05-25-2015, 01:08 PM   #6
7 Year Class A RV'er
 
Join Date: Oct 2014
Location: Winter Park, FL
Posts: 1,039
Check the thermostat and be sure the fan is set to auto and not hi or low.
__________________
2015 Legacy SR340 360RB
2014 Jeep Wrangler Unlimited Toad

Gigi, Poppy and Sadie Lady...On the road, but not full time!
conceptumator is offline   Reply With Quote
Old 05-25-2015, 01:32 PM   #7
Senior Member
 
Join Date: May 2013
Location: Florida
Posts: 303
Quote:
Originally Posted by kyman View Post
We have a 3 week old 8528ikws parked in Ky. The A/C runs for hours with out a cycle. Dealer says it is working like it should. Anyone else having this kind of problem? Dealer says he upgraded to a 15000 btu unit. My first post did not have much info.
Do you have the brown colored outside? We have the same trailer and noticed a difference in both the AC and our refrigerator especially when the sun was hitting the ODS of the camper. We only have the 13,500 BTU AC so that makes cooling harder. I would not have the darker exterior on our next trailer, and would specify either a second AC or the 15,000 BTU model
__________________
2013 Flagstaff 8528IKWS, 2006 F-350 6.0L
DickiedooFlagman is offline   Reply With Quote
Old 05-25-2015, 01:58 PM   #8
Senior Member
 
Join Date: Apr 2015
Posts: 240
There are very few situations where the units shold "ice up" I was an HVAC mechanic, and if this happens it is usually for two reasons.
1. Cold air coming from the vents is "short cycling", meaning that the cold air doesn't actually get into the living space, instead it blows out, and then is taken up immediately by the return duct. This blows cold air into what should be warm air (the return)
2. The unit is low on gas. Low pressure inside the unit causes the boiling point of the gas to be so low that it gets below freezing point and the dew point, causing water to form on the coils (condensation like water on a cold water glass on your table), which turns to ice on the coils. That ice blocks the flow of air and makes the unit ineffective at either cooling or dehumidifying.

Feeling cool is not just temperature, it is humidity. A unit has to run long enough to remove excess moisture from the air as well as cool the air. Air from an AC that is too cold will not remove moisture, it will just feel like a damp and cold basement or cave. A nicely cooled room will always feel "just right", no matter what the thermometer says it is. For example, a warmer room with a lower humidity will feel better than a colder room with higher humidity.
__________________
MOODMAN is offline   Reply With Quote
Old 05-25-2015, 02:20 PM   #9
Senior Member
 
Join Date: Oct 2014
Location: Full timer,,,at Lake Georgetown in central Texas for the winter.
Posts: 426
If the temperature at your supply air is about 15 degrees cooler than the return air is...it's doing as well as expected.
__________________
Grampa Jim is offline   Reply With Quote
Old 05-25-2015, 02:52 PM   #10
Senior Member
 
Join Date: Dec 2014
Posts: 329
When temperature is hot and humidity high, don't run your A/C Fan on auto, run it on High. This will help keep your coils from icing up and make your unit a lot more efficient. The fan will run constantly, but the compressor will run as needed. In the evening, when the temperature drops, switch the fan control back to auto.
__________________

__________________
tomrob1161 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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:17 AM.