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07-02-2016, 02:30 PM
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#1
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Senior Member
Join Date: Dec 2011
Location: Houston TX.
Posts: 2,348
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AC on Eplex no more
Was in for service and while my front temp senser was being replaced also had them install duo therm cc stat. The cost was not that bad and now Eplex issues will not cause me to loose AC function. Tech had to reprogram Eplex and just used existing wire from Eplex unit and plugged it into new stat.
Rig is 2008 Essex
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07-02-2016, 06:48 PM
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#2
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Senior Member
Join Date: May 2005
Location: British Columbia
Posts: 3,838
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I loved the layout and general e-plex display I had in my '07 Essex. I think it looked cleaner than the SilverLeaf I now have. The only plus for the SiverLeaf is how well it works. It is also quite a bit more pages and functions.
However, when you rely on getting A/C when it's hot out, it better work. You will now have the cool when needed.
Peter
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Peter - Doctor of Mixology
KADB 2013
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07-04-2016, 04:46 PM
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#3
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Junior Member
Newmar Owners Club
Join Date: Jul 2004
Location: Cornelius, NC
Posts: 18
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Did you have the factory do the change over to the Domestic Thermostat and reprogram the Eplex? My Zone 1 Eplex Sensor is no longer operating.
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Shamrock
John & Sandy Curtin
2006 Newmar Essex 4503
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07-05-2016, 07:33 AM
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#4
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Senior Member
Join Date: Dec 2011
Location: Houston TX.
Posts: 2,348
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Shamrock
I was having issues where the Eplex was locking up due to the temp senser for zone one being bad. Eplex would stay locked up until RV cooled off at night. This was an issue since we were and will be in a location that averages 95 daily. RV would cool but at a lesser rate since my front unit is out waiting for replacement to arrive. Eplex was reprogrammed by Newmar dealer that was doing the work after tech and I discussed options. I wanted cooling to work separate so if Eplex had issue I could still keep unit cool. So far working great. Front AC to be replaced in two weeks. This will also be done at Newmar dealer in city I am now in.
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07-05-2016, 11:07 AM
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#5
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Senior Member
Join Date: Dec 2014
Location: Salt Lake City, UT
Posts: 685
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How does the new controller get zone temp info? the existing sensors are tied to eplex.
__________________
2006 Newmar Essex 4502
2015 Jeep Grand Cherokee
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07-05-2016, 12:06 PM
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#6
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Senior Member
Join Date: Dec 2011
Location: Houston TX.
Posts: 2,348
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All they did was unplug the AC from Eplex and plug into the new stat. Stat uses the existing temp sensors.
__________________
Full timed in 2008 Newmar Essex. Currently part time in 2020 Entegra Esteem 29v tow Jeep Wrangler
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07-06-2016, 07:23 AM
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#7
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Senior Member
Join Date: Oct 2012
Location: Foley AL
Posts: 7,138
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Quote:
Originally Posted by Trapperbob11
All they did was unplug the AC from Eplex and plug into the new stat. Stat uses the existing temp sensors.
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Aquahot/Hydrohot/furnace ?
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
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07-06-2016, 02:32 PM
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#8
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Senior Member
Newmar Owners Club Entegra Owners Club
Join Date: Dec 2015
Posts: 1,623
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Hydro-hot and heat pumps should work normally. All the Eplex system does is emulate the Dometic thermostat commands. The rooftop units manage all the actual operation including commanding the Hydro-Hot system to take over when it gets too cold for the heat pumps. If you look under the midship bathroom sink you should find a Dometic control box. That is how the Hydro-hot is interfaced into the Dometic control system.
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07-06-2016, 02:46 PM
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#9
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Senior Member
Join Date: Oct 2012
Location: Foley AL
Posts: 7,138
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Quote:
Originally Posted by Archer2
Hydro-hot and heat pumps should work normally. All the Eplex system does is emulate the Dometic thermostat commands. The rooftop units manage all the actual operation including commanding the Hydro-Hot system to take over when it gets too cold for the heat pumps. If you look under the midship bathroom sink you should find a Dometic control box. That is how the Hydro-hot is interfaced into the Dometic control system.
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Yup ... that's the interface on my older (non-eplex) unit.
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2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
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07-06-2016, 09:05 PM
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#10
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Senior Member
Join Date: Dec 2011
Location: Houston TX.
Posts: 2,348
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My understanding is that I only need to turn on the Oasis boiler using the Eplex screen and then the new stat is used for everything else.
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Full timed in 2008 Newmar Essex. Currently part time in 2020 Entegra Esteem 29v tow Jeep Wrangler
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07-07-2016, 08:13 AM
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#11
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Senior Member
American Coach Owners Club
Join Date: Jun 2014
Location: N Rim of the Poudre
Posts: 274
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I plugged in the new thermostat like the one you are showing and all I got was EE on the screen. Do you know how it was programmed?
__________________
2009 Essex - Bordeaux
2016 Moto Guzzi Stornello 2016 Ducati Monster 821 on a Hydralift
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07-07-2016, 08:58 AM
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#12
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Senior Member
Join Date: Dec 2011
Location: Houston TX.
Posts: 2,348
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The stat was installed by a Newmar dealer. I have no idea what if any programming was done to the stat. He did hook a computer to Eplex to make program changes to it's software exactly what he changes in Eplex I can not say. Sorry
__________________
Full timed in 2008 Newmar Essex. Currently part time in 2020 Entegra Esteem 29v tow Jeep Wrangler
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07-07-2016, 09:11 AM
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#13
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Senior Member
Join Date: Oct 2012
Location: Foley AL
Posts: 7,138
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Quote:
Originally Posted by FORTRIDER
I plugged in the new thermostat like the one you are showing and all I got was EE on the screen. Do you know how it was programmed?
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The Dometic 5 button thermostat does not require any programming. Assuming you have the original units on the roof, the 5 button thermostat should connect via the cable that looks like a telephone cable and communicate with the rooftop units. EE is a communications error ... you can try a reset ... turn off the thermostat, hold the top button and the bottom button in (simultaneously) and turn on the thermostat.
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
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07-26-2016, 07:54 PM
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#14
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Senior Member
Join Date: Oct 2012
Location: Denton, TX, 76207
Posts: 2,160
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Trapperbob, brucelisa, azskier you guys saved my butt today. Sweltering in 90+ temps and high humidity and our acs (all 3 of them went out). Turned out to be the Eplex controller but after reading your thread here I purchased a 5 button dometic controller "just in case" and today was the day! Thanks again
__________________
Steve Pinn
2008 Newmar Essex-4514
2009 Honda CRV
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