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Old 09-04-2020, 08:53 AM   #1
Alain L.
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M.O.C. #21390
In-Command HVAC Issues

HVAC issue on my 1 month old Montana Legacy. Hasn't move from my site since we unhooked it I'm on 50 Amp and have 2 x 6 V house batteries reading at 13.6 V.
The HVAC was working fine on the last 4 weekends.
Got here this weekend where the 2 Zones temperature are not being detected and the AC, heat pump and furnace can't operate.
Does anyone have a quick solution before I spend most of the day talking to ASA Electronics, Keystone and the dealer?
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Alain Lacroix - Ottawa Ontario
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2021 Montana 3781RL Legacy
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Old 09-04-2020, 10:11 AM   #2
mazboy
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(800) 688-3135 – Option 3 start calling. good luck
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Old 09-04-2020, 10:22 AM   #3
Ahdmeyer
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M.O.C. #24181
here is the manual i think for your unit. hope it helps there is a section on troubleshooting a blank hvac temp. did it work when you picked it up?

https://in-command.net/wp-content/up...ng%20Guide.pdf

al meyer
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Old 09-04-2020, 10:31 AM   #4
Alain L.
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I got it working after turning off the 50 amp breaker for the post, turning off the battery disconnect, turning off the solar and pressing the reset button on the in-command board in the basement while everything was off. Turn the solar and battery now I was seeing the abient temp, then I turned on the 50 A power and I can start my AC. I'm not exactly sure what part fixed it.
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2020 GMC Denali DRW
2021 Montana 3781RL Legacy
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Old 09-04-2020, 11:24 AM   #5
AZ Traveler
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M.O.C. #20477
Master reset fixes a lot of problems. I flew FA-18s for many years - generally the first fix for an electrical glitch was take all the power off and start it again.
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Old 11-14-2020, 08:47 AM   #6
Plabranche
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Hi Alain. I have the same problem but I don’t see the hard reset in the control board in command in the basement. Can you help. Thanks
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