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08-09-2017, 12:11 PM
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#1
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Junior Member
Join Date: Aug 2017
Posts: 6
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A/C Fan Won't shut off
Fan is set to Auto, with a set temperature of 68. Fan will run continuously and then will shut off for a few seconds and start back up. Initially, we thought the unit was not cooling to the set point. However, we have tested this by increasing the temperature to over the space point, and the fan performs in the same way. Any ideas on why the fan would act this way.
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08-09-2017, 12:30 PM
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#2
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Senior Member
Join Date: Apr 2015
Location: Middle GA
Posts: 1,289
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What model rig do you have, who is the a/c manufacturer, etc.? What else have you done to troubleshoot it? It could be quite a number of things. We need to know details, before we can help. If you don't know the manufacturer, then pictures of your thermostat might help.
Depending on the outside temperature, if you're in the shade, etc. 68 degrees may be unrealistic.
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2016 Ram 3500 Laramie 4X4 6.7 Cummins Diesel
Never Enough Time Camping!!
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08-09-2017, 12:54 PM
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#3
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Senior Member
Join Date: Dec 2016
Location: Charleston, SC
Posts: 848
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Quote:
Originally Posted by markbezner
Fan is set to Auto, with a set temperature of 68. Fan will run continuously and then will shut off for a few seconds and start back up. Initially, we thought the unit was not cooling to the set point. However, we have tested this by increasing the temperature to over the space point, and the fan performs in the same way. Any ideas on why the fan would act this way.
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Yah!! There's very little insulation in an rv to keep the heat out. Thus the cycling of the thermostat. 68° is a pretty low temp to try to maintain when it's hot outside. I keep mine set at 74° which is easier to maintain. When it gets above 100°, my a/c runs constantly. Home and rv.
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08-09-2017, 01:11 PM
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#4
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Junior Member
Join Date: Aug 2017
Posts: 6
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It is a Forest River Georgetown 364TS Domitec unit
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08-09-2017, 01:12 PM
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#5
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Junior Member
Join Date: Aug 2017
Posts: 6
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Quote:
Originally Posted by ben31
What model rig do you have, who is the a/c manufacturer, etc.? What else have you done to troubleshoot it? It could be quite a number of things. We need to know details, before we can help. If you don't know the manufacturer, then pictures of your thermostat might help.
Depending on the outside temperature, if you're in the shade, etc. 68 degrees may be unrealistic.
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It is a Georgetown 364TS. Domitec unit. It was only about 68 degrees outside at the most recent occurrence.
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08-09-2017, 01:16 PM
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#6
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Member
Join Date: May 2017
Location: Pawleys Island
Posts: 85
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Quote:
Originally Posted by markbezner
Fan is set to Auto, with a set temperature of 68. Fan will run continuously and then will shut off for a few seconds and start back up. Initially, we thought the unit was not cooling to the set point. However, we have tested this by increasing the temperature to over the space point, and the fan performs in the same way. Any ideas on why the fan would act this way.
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We had an issue like yours. We found out you have to go to fan set go thru low, high then auto. Then go to cool with your temperature set and mine worked. It now gets to temp and shuts off when before it just kept running. A repair serviceman was working on an RV next to us and showed me that. I can't remember the name of my thermostat but I have a 2017 Georgetown XL 378. IF that doesn't work you may have it set to low like others have said. I keep mine at 75. Also be sure to press cold.
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08-09-2017, 01:20 PM
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#7
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Member
Join Date: May 2017
Location: Pawleys Island
Posts: 85
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Ours is a Domestic also
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08-09-2017, 01:39 PM
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#8
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Senior Member
Join Date: Dec 2016
Location: Charleston, SC
Posts: 848
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Quote:
Originally Posted by markbezner
It is a Georgetown 364TS. Domitec unit. It was only about 68 degrees outside at the most recent occurrence.
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Where are you? I haven't seen a 68 temp since March. It's been in the high 90s here for 3 months.
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08-09-2017, 01:42 PM
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#9
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,149
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Quote:
Originally Posted by Schvarak
Where are you? I haven't seen a 68 temp since March. It's been in the high 90s here for 3 months.
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HA!
Was 42º here in PA this morning!
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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08-09-2017, 01:44 PM
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#10
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Junior Member
Join Date: Aug 2017
Posts: 6
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Quote:
Originally Posted by Schvarak
Where are you? I haven't seen a 68 temp since March. It's been in the high 90s here for 3 months.
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It's definitely odd for us too. We are in the Panhandle of Texas. Headed to 95+ temps in the Dallas area.
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08-09-2017, 01:49 PM
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#11
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Senior Member
Join Date: Dec 2016
Location: Charleston, SC
Posts: 848
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Quote:
Originally Posted by markbezner
It's definitely odd for us too. We are in the Panhandle of Texas. Headed to 95+ temps in the Dallas area.
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68° outside temp and you're running the A/C? Heck, open the windows and entry door. I wish!![emoji38]
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08-09-2017, 06:06 PM
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#12
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Senior Member
Join Date: May 2013
Location: Whitehouse, Texas
Posts: 1,275
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Our dometic does the same thing. But when it does turn back on it is at a different speed. I believe it does it so ice does not build up on the evaporator coils and also to keep the humidity down.
It is normal.
__________________
2013 Georgetown XL 378
2008 Honda CR-V
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08-09-2017, 06:52 PM
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#13
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,149
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Quote:
Originally Posted by wrapperman
Our dometic does the same thing. But when it does turn back on it is at a different speed. I believe it does it so ice does not build up on the evaporator coils and also to keep the humidity down.
It is normal.
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Correct. On some Dometic units with the fan on Auto, the fan will shut off for a few seconds when sensing the need for a different fan speed. Absolutely normal.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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08-10-2017, 06:34 AM
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#14
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Junior Member
Join Date: Aug 2017
Posts: 6
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Thanks so much. Set the thermostat to 74 and it worked much better.
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08-10-2017, 06:44 AM
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#15
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Senior Member
Join Date: Dec 2016
Location: Charleston, SC
Posts: 848
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Quote:
Originally Posted by markbezner
Thanks so much. Set the thermostat to 74 and it worked much better.
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Wonderful!!![emoji4]
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08-10-2017, 07:54 AM
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#16
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Senior Member
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 9,230
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Nice and cool here in PA.
__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
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08-10-2017, 08:18 AM
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#17
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,149
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Quote:
Originally Posted by A32Deuce
Nice and cool here in PA.
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Yep... 42º yesterday morning.
No A/C needed.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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08-10-2017, 08:44 AM
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#18
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Site Team
Join Date: Oct 2014
Posts: 15,301
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Quote:
Originally Posted by markbezner
Fan is set to Auto, with a set temperature of 68.
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Are you sure the fan is set to Auto. There is also an Auto setting on the temperature control.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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08-10-2017, 12:16 PM
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#19
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Member
Join Date: Apr 2017
Location: Muncy Valley PA
Posts: 96
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Our fan in AC wouldn't shut off either. I saw on another thread about turning it to fan and then switching to auto first. I tried it yesterday with the AC on and it worked just like it was supposed too. You have three choices on fan. Low, high and auto. Set it to auto and the switch to AC and it should work. By the way how can you stand 68 degrees? lol
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08-10-2017, 06:20 PM
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#20
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Junior Member
Join Date: Aug 2017
Posts: 6
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My wife likes 2ft deep comforters on the bed so I gotta compensate.
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