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07-22-2017, 03:33 PM
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#1
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Junior Member
Join Date: Jul 2017
Posts: 6
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A/c trouble
My A/C compressor shuts down after running only a few minutes . Then starts cycling on and off.. When this happens the fan motor changes speed and runs faster
EDIT: See update in next post.
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07-22-2017, 06:02 PM
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#2
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Junior Member
Join Date: Jul 2017
Posts: 6
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HELP!!! A/C issues
I have 2006 Salem camper I'm having all kinds of trouble with A/C at first it was short cycling and I figured out I was using a smaller Gage cord the I needed. Then I replaced the cord and the a/c ran fine for an hour or so then it just stopped and nothing is coming on now not even the fan.... It's driving me nuts
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07-22-2017, 06:30 PM
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#3
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,552
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Are you plugged in to an outlet at your house? Is that outlet protected by a GFCI circuit? If so, did the GFCI trip? If not that, did your house breaker for that circuit trip?
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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07-22-2017, 06:31 PM
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#4
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Junior Member
Join Date: Jul 2017
Posts: 6
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No it's a regular outlet
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07-22-2017, 06:31 PM
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#5
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Site Team
Join Date: Oct 2014
Posts: 15,284
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This will sometimes happen on very hot humid days when you first turn on the AC. The condenser will ice up. If you have a ducted system, open the dump vent until the RV cools. This allows a higher air flow and should help. This can also happen if the campground voltage drops due to high usage as the lower voltage will cause the compressor to run hotter. This triggers the over temp protection in the compressor.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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07-22-2017, 06:34 PM
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#6
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,552
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Quote:
Originally Posted by troutmask
No it's a regular outlet
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Then you still need to answer if the circuit breaker tripped for that circuit in your house panel. And, you should check the A/C circuit breaker in the trailer... besides doing what Flybob suggested.
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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07-22-2017, 06:39 PM
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#7
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Junior Member
Join Date: Jul 2017
Posts: 6
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The dump was open and the breaker was not tripped every thing else In the camper is working....i can hear the contactor click when I try to turn it on
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07-22-2017, 07:44 PM
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#8
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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If you're hearing the relay engage in the ceiling box but nothing is starting then I'd check for 120 volts going to the A/C control box. The relays are powered by 12 volts so they can work even if there's no 120 volt supply.
Did you turn the A/C breaker in the power distribution panel off and then back on. Sometimes they'll be tripped and not look like it.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin! 
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07-22-2017, 08:15 PM
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#9
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Junior Member
Join Date: Jul 2017
Posts: 6
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I'll check that
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07-22-2017, 08:31 PM
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#10
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Senior Member
Join Date: Apr 2016
Location: Cedar Creek Lake, TX
Posts: 3,484
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What size extension cord are you using? It sounds like you are a 15 amp circuit. Too small, or too long a cord can cause a voltage drop. If that is the case a hard start capacitor might help.
__________________
Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
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07-22-2017, 08:36 PM
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#11
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,268
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Low voltage due to use of an extension cord will destroy an AC over time.
You should never run your AC on an extension cord unless it is rated for 30 amps and less than 50 feet. While the compressor may run, the excess current in the windings will "hopefully" cause the thermal circuit protection in the compressor's motor to open until it can cool off.
If the thermal breaker fails due to over use, the compressor can fail or catch fire.
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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07-22-2017, 09:26 PM
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#12
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Senior Member
Join Date: Aug 2013
Posts: 7,916
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X2 low voltage will destroy a compressor. Hopefully it thermalled out and in 2-3 hours it will reset.
__________________
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas 
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07-22-2017, 09:30 PM
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#13
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Junior Member
Join Date: Jul 2017
Posts: 6
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It's back on
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07-22-2017, 09:32 PM
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#14
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Senior Member
Join Date: Jun 2013
Posts: 10,833
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Quote:
Originally Posted by troutmask
It's back on
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What cord and circuit are you using?
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