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05-22-2015, 10:50 AM
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#1
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Member
Join Date: Oct 2013
Location: Central Wisconsin
Posts: 96
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RVComfort.HP Thermostat Problem
I have read about others with the problem with their thermostats in that they would set the temp for furnace, say 60 degrees and later find that it is heating way higher like up to the factory setting of 72 degrees. Well, mine is doing this too. Called Jayco and was told that some of these for some reason are momentarily losing ground and resetting to factory setting. Since we are doing 6 weeks of campground hosting, Jayco agreed to ship the necessary part (a relay) along with instructions so that I may install to correct myself.
Again, Jayco has been very helpful in solving issues that come up with our new rig. Thank you Jayco!
__________________
2015 Jayco Greyhawk 29KS
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05-22-2015, 01:58 PM
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#2
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,851
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Good to hear they are working with you.
__________________
 Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
Can't find what you're looking on JOF? Try Jayco Owners Forum Custom Google Search
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05-23-2015, 06:15 AM
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#3
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Member
Join Date: Jul 2014
Posts: 34
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I had the same problem on my unit this past winter. I took mine in for repair and they added an isolation relay to the system. The tech told me they were putting a lot of those in on new Jayco campers. Hope this helps.
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05-26-2015, 07:02 PM
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#4
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Senior Member
Join Date: Nov 2014
Location: Grove City, OH
Posts: 238
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Thanks for the info. I'll add this to the list of items to have the dealer look at when the season ends. I had it happen a couple of times as well.
__________________
Ty & Deb Montag
Columbus, OH
2015 Jayco Seneca 36FK
2014 Honda CR-V toad
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05-27-2015, 01:10 PM
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#5
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Junior Member
Join Date: Apr 2015
Location: Philadelphia
Posts: 17
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I had this problem with my thermostat also. The service department where I purchased my 31DS motorhome was told that the thermostat was picking up interference from the LED lights in the motorhome specifically the lights on the canopy. They installed the relay and It appears to have fixed the problem.
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06-11-2015, 06:21 AM
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#6
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Member
Join Date: Oct 2011
Location: Smithtown
Posts: 84
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My thermostat seems to work just fine when using the heat pump. When using the propane furnace it will not shut off until it reaches 72 degrees ???
__________________
2015 Jayco Precept 35 UP
2015 Jayco Greyhawk 31 DS (SOLD)
2009 Jeep Wrangler X
2012 Jayco Skylark (SOLD)
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06-11-2015, 08:46 AM
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#7
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Junior Member
Join Date: Apr 2015
Location: Philadelphia
Posts: 17
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RV Thermostat problem on Gas Heat Setting
This appears to be a common problem with the heat pump/gas heat thermostat. I have a Jayco 31DS and had the same problem twice. Finally, the Jayco factory figured out the problem. The thermostat was picking up interference from the LED lights in the motorhome and it effected the thermostat in the gas heat mode. They installed an isolater relay kit. This fixed the problem so far. Hope this helps. This was done under warranty and no charge to me.
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06-17-2015, 10:54 AM
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#8
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Member
Join Date: Oct 2013
Location: Central Wisconsin
Posts: 96
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adaigle , you need the isolation relay kit supplied by Jayco to remedy this issue. Having my dealer install it next week.
__________________
2015 Jayco Greyhawk 29KS
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10-10-2017, 11:49 AM
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#9
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Junior Member
Join Date: Oct 2017
Location: Kent
Posts: 2
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Does anyone happen to know the part # of this isolation relay?
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10-10-2017, 11:52 AM
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#10
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Junior Member
Join Date: Oct 2017
Location: Kent
Posts: 2
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Does anyone happen to know the part # of this isolation relay, I am having the same problem with the gas heat setting on my heat pump thermostat on my 2014 Jayco Seneca.
Thank you.
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12-07-2019, 09:38 PM
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#11
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Junior Member
Join Date: Sep 2019
Location: Fraser Valley
Posts: 12
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Quote:
Originally Posted by Suzuki12
Does anyone happen to know the part # of this isolation relay, I am having the same problem with the gas heat setting on my heat pump thermostat on my 2014 Jayco Seneca.
Thank you.
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Could someone please share the part number or alternative fix/upgrade for the thermostat.
Thx
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12-07-2019, 10:43 PM
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#12
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,898
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Quote:
Originally Posted by Rebelflyer
Could someone please share the part number or alternative fix/upgrade for the thermostat.
Thx
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You may need to contact Jayco Customer Service, with your VIN#, year, and model number. Also, the brand of thermostat, and its model number. Ask for the relay kit number for it. The only number I could find was 0239090, but I have absolutely no idea if it's the correct one for your unit.
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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12-07-2019, 10:50 PM
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#13
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Junior Member
Join Date: Sep 2019
Location: Fraser Valley
Posts: 12
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Thanks.... Will follow up with them Monday.
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12-07-2019, 10:57 PM
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#14
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,898
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You're very welcome!
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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12-16-2019, 11:19 AM
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#15
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Member
Join Date: Jul 2018
Location: Tumbler Ridge
Posts: 44
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Is your furnace continually defaulting to 72 degrees? The part I needed to make this repair on my 2014 Seneca was isolation relay kit 8530-4051. Took a while to get information on how/where to install it but finally was able to get it done and it works fine now. On my 36FK I was able to install it on the furnace side by just removing the slide drawer under the cook top which gave me access to the furnace wiring.
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12-16-2019, 11:28 AM
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#16
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Member
Join Date: Jul 2018
Location: Tumbler Ridge
Posts: 44
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I just checked the bag the relay came in and I see it's the same part number given up above, 0239090. I also have instructions on how to install it. Was very easy to do on my 36 FK.
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01-30-2021, 01:10 PM
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#17
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Member
Join Date: Oct 2020
Location: western NY
Posts: 80
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Good information. Thank you all!
__________________
 Mike & Lizzy
2021 Greyhawk Prestige 29MVP
Retired Army CW4
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04-15-2024, 11:06 AM
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#18
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Junior Member
Join Date: Apr 2016
Location: Regina
Posts: 5
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Can anyone provide a source??
I know this is quite an old thread but I've been trying to get Jayco to provide a source or anything so I can get this isolation relay but no matter what I say or ask they just say my thermostat or rig are too old. I have a 2014 38FLFS with exactly what is described in this thread. Can anyone source this part? So far the internet has been less than fruitful 😕
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04-15-2024, 01:09 PM
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#19
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,079
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Quote:
Originally Posted by lselinger
I know this is quite an old thread but I've been trying to get Jayco to provide a source or anything so I can get this isolation relay but no matter what I say or ask they just say my thermostat or rig are too old. I have a 2014 38FLFS with exactly what is described in this thread. Can anyone source this part? So far the internet has been less than fruitful 😕
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Have your/a dealer call Jayco's parts dept with the numbers listed and see what they can find out.
__________________
 DISNEY LOVERS
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04-15-2024, 06:20 PM
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#20
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Junior Member
Join Date: Apr 2016
Location: Regina
Posts: 5
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Quote:
Originally Posted by Grumpy
Have your/a dealer call Jayco's parts dept with the numbers listed and see what they can find out.
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Message sent, here's hoping!
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