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05-24-2014, 03:21 PM
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#1
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Junior Member
Join Date: May 2014
Posts: 17
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E1 error on my AC
Hi. My AC was working fine and now the thermostat flashes between E1 error code and the last temperature setting. Neither the AC or the furnace is working. We have checked all the connections inside and replaced the thermostat with no success. I have read this code means loss of communication but how do we fix this. We have a 2012 Lacross RES. Thanks for any help!
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05-24-2014, 03:57 PM
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#2
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Senior Member
Join Date: Jul 2010
Posts: 7,948
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Quote:
Originally Posted by artanner
Hi. My AC was working fine and now the thermostat flashes between E1 error code and the last temperature setting. Neither the AC or the furnace is working. We have checked all the connections inside and replaced the thermostat with no success. I have read this code means loss of communication but how do we fix this. We have a 2012 Lacross RES. Thanks for any help!
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I would at least try to shut off the Circuit breaker and battery DC and then turn back on and see what you get. This may be all you need to reset the error.
Good luck.
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05-24-2014, 04:53 PM
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#3
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Junior Member
Join Date: May 2014
Posts: 17
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Do we re- hook the battery before we turn the ac back on or not?
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05-24-2014, 04:55 PM
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#4
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Senior Member
Join Date: Jul 2010
Posts: 7,948
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Quote:
Originally Posted by artanner
Do we re- hook the battery before we turn the ac back on or not?
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YES you need both AC and DC power ON
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05-24-2014, 05:14 PM
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#5
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Junior Member
Join Date: May 2014
Posts: 17
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Thanks we will try that
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05-25-2014, 07:13 AM
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#6
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Junior Member
Join Date: May 2014
Posts: 17
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No luck. Same error code
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05-25-2014, 07:32 AM
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#7
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Senior Member
Join Date: Dec 2012
Posts: 7,645
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It's my understanding that an E1 flashing code indicates the thermostat has lost its memory. Remove the thermostat and check for loose terminals. More often than not a new thermostat is required. Evidently continued use of your system with the code flashing will not harm the system.
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05-25-2014, 09:15 AM
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#8
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Junior Member
Join Date: May 2014
Posts: 17
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Thanks bubbles. We have replaced the Tstat all ready with no luck. We are going to keep trying. The air/ furnace will not even come on
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05-30-2014, 07:44 AM
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#9
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Junior Member
Join Date: Jul 2012
Location: Fulltime RV
Posts: 14
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I had this happen with the 2nd AC on my Sanibel a year ago. I checked the unit on the roof and found no 120vac (without power there is no communication). I found a loose wire connection at the CB panel. Repaired that and all has been good since.
__________________
2008 F-450 CC DRW
2013 3500 Sanibel
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05-30-2014, 08:31 AM
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#10
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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05-30-2014, 09:45 AM
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#11
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Junior Member
Join Date: May 2014
Posts: 17
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Thanks for the information. We are going to the camper tomorrow and hopefully that is the problem.
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05-30-2014, 09:52 AM
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#12
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Infractee
Join Date: Aug 2010
Posts: 796
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I have the same error code, means a loss of communication with control module. Mine is probably toast because my camper was hit by lightning.
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05-30-2014, 12:05 PM
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#13
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Senior Member
Join Date: Jan 2011
Location: Part Timing It Now
Posts: 3,452
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Quote:
Originally Posted by RhoZeta
I have the same error code, means a loss of communication with control module. Mine is probably toast because my camper was hit by lightning.
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I hate lightening !!! If close enough (static charge), it will also affect the control box for the Schwintek slides. Fortunately for me, just pushing the reset button inside the control box got it working again. Happened 3 times in the 3 years we owned our Lacrosse,
__________________
"PT Crew Members Since 9/2010"
2011 RAM 2500 HD 6.7L CTD Crew
2014 Prime Time Sanibel 3250
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05-31-2014, 03:21 PM
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#14
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Junior Member
Join Date: May 2014
Posts: 17
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Replaced battery no luck at all
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05-31-2014, 03:54 PM
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#15
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Junior Member
Join Date: May 2014
Posts: 17
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What does the data cable look like? Could this be the issue? How easy to replace?
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05-31-2014, 03:55 PM
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#16
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Junior Member
Join Date: May 2014
Posts: 17
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Rvsunman... Where is the CB panel?
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06-01-2014, 08:12 AM
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#17
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Junior Member
Join Date: Jul 2012
Location: Fulltime RV
Posts: 14
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CB = Circuit Breaker. Don't know where the panel is in your unit. You need to know where that is for the same reasons you would need to know in your house. The breaker panel has breakers for all of your electrical loads including both 120 vac and the 12vdc loads. Each of your AC units (If you have 2) will have a 120vac breaker in this panel.
As for the data cable, it will look like a phone cord. It is also possible that the cable has disconnected from the circuit board on the roof or behind the wall mounted thermostat. I would check that too. These cables just plug in like a phone cable, real easy to see and reconnect. I would doubt that this cable is broken and needs replaced, more likely disconnected if anything.
__________________
2008 F-450 CC DRW
2013 3500 Sanibel
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06-01-2014, 09:03 AM
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#18
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Junior Member
Join Date: May 2014
Posts: 17
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Where is the data cable on the roof located and how do I check where the cable is behind the thermostat? When we replaced the LCD thermostat we reconnected the three wires that screwed into the thermostat then
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06-01-2014, 09:28 AM
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#19
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Phat Phrog Stunt Team
Join Date: Apr 2011
Location: South West PA
Posts: 3,012
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Did your 2nd. AC come factory installed ? or was it added at the dealer ship? Does your thermostat look like the one Turbs posted previously ?
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06-01-2014, 10:00 AM
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#20
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Junior Member
Join Date: May 2014
Posts: 17
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We have one AC unit that was factory installed. We replaced just the thermostat. The thermostat is the same kind that was on it previously. It is a Dometic three button LCD screen
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