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10-17-2014, 08:12 AM
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#1
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Senior Member
Join Date: Apr 2013
Location: Arizona
Posts: 233
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Need New Thermostat
I need to replace my Coleman "Mach" thermostat but I'm not sure which one to get. It is a combination heat/ac. I would like to upgrade to digital but would like to keep my option of fan high/low. Has any one replaced this unit and if so with what and is the wiring different?
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10-17-2014, 01:29 PM
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#2
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Senior Member
Join Date: May 2012
Location: Florence WI.
Posts: 336
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I switched the thermostat on our Outback to a digital one, It was also a Coleman. I called our dealer and had him find the right one for our unit. I figured seeing there are so many options in the catalog he could figure out which one we needed faster than I could. The wiring was all the same so we had all our functions with the new thermostat. The new one was the Coleman digital version.
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10-17-2014, 01:34 PM
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#3
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Senior Member
Join Date: Apr 2011
Location: Ontario, Canada
Posts: 152
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I took the easy way out and simply upgraded to the Coleman Mach digital thermostat.
Certainly not the cheapest option but identical wiring, keeps the fan high/low selection, and keeps the temperature pretty much with 1/2 degree of the setting.
Phil
__________________
Phil & Rae.....and 2 feline furkids to make travel interesting
2011 Keystone Laredo 316RL
2005 Ford F250 SD, 6L PSD, 4x4
MOR/ryde Wet Bolt Kit, TST 507 TPMS, 1000w PSW Inverter, JT's Strongarm Stabilizers, and the list goes on....
Yamaha EF3000iSE/B Inverter Generator
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10-17-2014, 05:52 PM
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#4
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Senior Member
Join Date: Aug 2014
Location: Panama City, FL
Posts: 127
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I may have a thermostat problem on our 2014 Laredo TT. It gets frigid cold before the thermostat shuts down the A/C. THen it gets stuffy hot sometimes before it will come back on. We are constantly bumping the temperature selector one way or the other to get the A/C to respond. The temp range is easily 15-20 degrees sometimes.
Is this normal?
I think a digital thermostat may be more accurate. At least we will know exactly where we adjust it to.
__________________
4-Bear's (Britt-Marie, Emma, Amanda, Richard)
2010 Ram 1500 Big Horn, 5.7L HEMI
2014 Keystone Laredo 320TG
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10-17-2014, 06:15 PM
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#5
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Senior Member
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
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I bought a $30 programmable digital thermostat from Lowes and it works excellent. There is only a one degree swing before it turns on the furnace or AC. No more cold/hot swings between cycles.
I only use Hi fan on the AC so don't care about losing the low fan option. Others have installed a separate toggle switch on the side of the thermostat to regain the low fan capability.
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10-17-2014, 06:33 PM
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#6
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Site Team
Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
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Previously, members have replaced their non-digital OEM thermostat with a Hunter programmable, digital model which was available at Walmart for around $25. If you do a forum search (type in "Hunter thermostat), you'll find out more information about this thermostat and what other members have done in previous years regarding replacing it.
Keep in mind that many of these threads are 2-3 years old and the models that are talked about in the threads may no longer be available.
__________________
2008 Cougar 5th Wheel 27RKS
2005 2500 GMC Duramax
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10-17-2014, 10:42 PM
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#7
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Senior Member
Join Date: Nov 2012
Location: Okla
Posts: 363
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Quote:
Originally Posted by Richard6959
I may have a thermostat problem on our 2014 Laredo TT. It gets frigid cold before the thermostat shuts down the A/C. THen it gets stuffy hot sometimes before it will come back on. We are constantly bumping the temperature selector one way or the other to get the A/C to respond. The temp range is easily 15-20 degrees sometimes.
Is this normal?
I think a digital thermostat may be more accurate. At least we will know exactly where we adjust it to.
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Sounds like the temperature swing / heat anticipator may be set too high. This article talks about it in reference to heat, but older, manual thermostats use the same principle for determining temp range when running the air conditioner.
http://homerepair.about.com/od/heati...nticipator.htm I've also seen where the mercury activated switch gets sticky (because of age, corrosion, and such), but since yours is a 2014, I doubt that's the problem.
__________________
2012 Keystone Vantage 32FLS
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