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01-01-2023, 05:21 AM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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No power in coach except with 30Amp feed or engine running 2023 Sequence 20L
When boondocking battery voltage dissipates, OK with 30Amp source or running engine
Mod EDIT: RV is 2023 Sequence 20L
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01-01-2023, 05:58 AM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
Posts: 4,149
THOR #16721
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Check that your main DC breaker - usually near the battery - isn't tripped. it has a small flag that extends when tripped.
When plugged to shore power your DC converter is supplying DC to your 12volt system. Same with engine running.
There's threads on the forum showing pics of the main breaker.
Check the pic in this:
40 amp Circuit Breaker for Trolling Motor Motorhome Trailer Camper Truck Motorhome Boat Solar Project Power Battery Bank Inverter Breaker 12V - 72V with Manual Reset Trip Button https://a.co/d/fdXGqOy
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Be creative, and have a fun life...
...and don't be an @**hole! -Ken Block
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01-01-2023, 06:36 AM
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#3
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,325
THOR #7035
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Quote:
Originally Posted by Luvrkds
When boondocking battery voltage dissipates, OK with 30Amp source or running engine
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Dissipates how quickly? You have not described a problem, when boondocking it is normal to use the energy in the battery to operate lights, the fridge, water heater, radio, etc.
Also, for better help you should include the Year/Make/Model of your RV.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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01-01-2023, 02:15 PM
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#4
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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Config on 2023 Sequence 20L is two 200 amp Li batteries and additional alternator. Power is gone after 3-5 hours with no appliances connected except for refrig and Winegard ???? RV at dealer now
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01-01-2023, 05:43 PM
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#5
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Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,148
THOR #12751
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Quote:
Originally Posted by Luvrkds
Config on 2023 Sequence 20L is two 200 amp Li batteries and additional alternator. Power is gone after 3-5 hours with no appliances connected except for refrig and Winegard ???? RV at dealer now
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Did you upgrade to two 200Ah batteries yourself? According to the brochure two 100Ah batteries is standard with 460Ah as an option.
Is your fridge a 12V fridge or residential fridge?
Do you have a Smart Shunt that shows how may amps are being drawn when you are not on shore power or have the engine running?
Have you confirmed the batteries are charging when on shore power using a voltmeter?
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01-01-2023, 07:12 PM
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#6
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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Thanks,
RV back to General RV this week. Been trying to figure what/why this condition exists. This is a brand spanking NEW RV
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01-08-2023, 01:05 AM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 22E
State: California
Posts: 125
THOR #27561
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Well either your batteries don't charge or hold a charge or there is some type of load that you don't realize exists. If you don't have a built in shunt to measure current into and out of the batteries you can use something like this https://www.testequipmentdepot.com/a...er-acdc100.htm which is what I use. There could be some type of load on the batteries including worn or bad insulation on a 12V conductor that is enough to draw a reasonable load without tripping a breaker or blowing a fuse. You can also use it to check to see that charging current is going into the battery.
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01-08-2023, 02:53 PM
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#8
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Senior Member
Brand: Thor Motor Coach
State: Wisconsin
Posts: 222
THOR #27874
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I'd start the trouble shooting with a infrared thermometer...
If all it takes is to disconnect from a charge source (shore/UHG when engine running) to discharge the batteries...something is just shy of shorting is happening (dead short or super high current draw would kick out the BMS).
If you truly are draining 400ah in a couple hours, that will generate a lot of heat somewhere.
Then again, it wouldn't be out of the question that the Balmar display isn't configured properly and all is well, just displaying incorrect information.
Ron
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Ron and Kitchy with Scottie our tri-color Sheltie
2014 Fleetwood Bounder 35k, 2019 Jeep Cherokee Limited toad
2023 Thor Tellaro 20L 200Amp Reliable -no generator
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01-08-2023, 03:02 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 22E
State: California
Posts: 125
THOR #27561
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The suggestion by RonRM to use a infrared thermometer reminded me that I use a Seek Thermal infrared camera attachment to my iPhone. Reasonably priced and gives you a large field of view. Also very handy for spotting poor insulation, leaky windows, overheating terminations, etc. https://www.thermal.com/compact-series.html
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01-08-2023, 04:50 PM
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#10
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Senior Member
Brand: Thor Motor Coach
State: Wisconsin
Posts: 222
THOR #27874
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Adding that to my Xmas/Birthday list...cool idea
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Ron and Kitchy with Scottie our tri-color Sheltie
2014 Fleetwood Bounder 35k, 2019 Jeep Cherokee Limited toad
2023 Thor Tellaro 20L 200Amp Reliable -no generator
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01-09-2023, 02:37 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Tellaro 20L
State: North Carolina
Posts: 279
THOR #26907
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My bet would be a problem with the Balmar display showing incorrect information as Ron suggested.
Mine has done that several times. On one occasion my Balmar showed 0% SOC while the air conditioner was running on the inverter. I know there was at least 60% of battery capacity left.
I would check your configuration on the Balmar display. Make sure your battery chemistry reflects "Relion LifoPo4" as the battery type and your A/h are set correctly. My problems have not reoccurred since I did that. Much easier if you have the bluetooth dongle. That is about a $60 part you can get from Amazon and is "plug and play". Once you change your configuration in that device, your Balmar display will reset and update. You can also update the Balmar software with the bluetooth device. I leave mine attached to the Balmar all the time to see the same data that is on the display.
You may want to confirm you have 400 a/h and not 200 a/h of total capacity. If not mistaken, the 400 a/h system has the batteries mounted inside the coach somewhere and the 200 a/h system has the two 100 a/h batteries underneath the van in front of the axels. That makes a huge difference if the Balmar set incorrectly.
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01-10-2023, 02:07 AM
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#12
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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Quote:
Originally Posted by Luvrkds
Thanks,
RV back to General RV this week. Been trying to figure what/why this condition exists. This is a brand spanking NEW RV
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Well, I have an answer. Dont have the exact answer yet But seems like there was a module that acts as a timer????? For the LI batteries, THAT was missing. ???
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01-10-2023, 03:46 AM
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#13
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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System is a 200 A/hr, not 400, sorry misspoke.
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01-10-2023, 02:00 PM
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#14
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Senior Member
Brand: Thor Motor Coach
State: Wisconsin
Posts: 222
THOR #27874
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Glad for you that it was just the timer module...simple fix.
The timer module engages when you run the air conditioning and the microwave at the same time (when inverting power from batteries). I believe it senses the microwave drawing power and disables it for a couple of mins. There is a recall on them if they have a date code before 5/22 (could be earlier don't exactly remember).
I suppose one of the failure modes could be to stay on and draw power from the 12v system.
My 2023 20L/200ah came with a recalled module, (looks like little red/pinkish heat shrink around a 1.5" square circuit board with connector). I found that mine needed to be replaced. I called Thor, they wanted me to take the rig to a dealer due to recall repair. I'm not one to take it to the dealer unless I have no other options, ordered one directly from KIB ($25 + shipping). Especially, something that just needs to be unplugged and a new one plugged back in.
I wonder why/how a dealer can deliver a vehicle without addressing a recall issue.
Ron
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__________________
Ron and Kitchy with Scottie our tri-color Sheltie
2014 Fleetwood Bounder 35k, 2019 Jeep Cherokee Limited toad
2023 Thor Tellaro 20L 200Amp Reliable -no generator
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01-10-2023, 03:20 PM
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#15
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Junior Member
Brand: Thor Motor Coach
Model: Sequence 20L
State: Virginia
Posts: 12
THOR #28761
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Quote:
Originally Posted by Luvrkds
Config on 2023 Sequence 20L is two 200 amp Li batteries and additional alternator. Power is gone after 3-5 hours with no appliances connected except for refrig and Winegard ???? RV at dealer now
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Thanks for the update/info on the timer.
Also, After talking to Thor T/S , I was disappointed that it wasn’t going to do more….My original power/heat problem did not involve the Micro a/o A/C (fact is, we have not yet used either one).
General RV said that all is working…??????
So, I’m wondering how this will work on next weeks boondocking.
Thanks Again
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