I brought it in 3 days after the one year warrantee had expired because the AC would shut off in the sleeper instead of the autostart kicking in and 4 of the high dollar batteries were shot, replaced all batteries this was like a month ago, AC auto start function worked together again now it's doing the same thing, AC just shuts off, autostart does not engage. I have the electric apu system. Anyone else figure this out?
International LT 2020 Sleeper AC shuts off when volts get low, autostart does not kick in.
Discussion in 'International Forum' started by shakin, Sep 4, 2020.
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I replied to your other post, but I'll add some more here. You still need to plug into it to see what the body controller is reading for cab temp. It the temp sensor in the cab might be faulty and reading cold all the time so body controller thinks its cold enough and therefore never initiates the system to run. For the system to run, you need the park brake set, hood closed, no vehicle speed and must be in neutral. If any of these safety interlocks are showing error it will not start. You need to a computer plugged in to see all these.
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Hey thanks so much. I brought it in they replaced the air temp sensor and raised the auto start setting to 12.4, I told them 12.3 and it still turns on way too much. Now it's doing it again this time I'm plugged into shore power, thinking garbage sensor again. Killing me. I'll have to bring it in for a third time. Thanks for your response!
Heavyd Thanks this. -
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It sounds like my truck is doing the same thing. The auto start works as it’s supposed to. My issue is the bunk AC shuts off before the voltage drops low enough for the auto start to start the truck. The AC will work just fine until it just shuts off when voltage drops to 12.5
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