That's a weird one that it would not work above 100F. I searched around the net and found this https://static.nhtsa.gov/odi/tsbs/2019/MC-10153026-9999.pdf Could be the problem since the failure above 100F

thanks Ray. I’ll check with the local authorized Keystone Service company to see if they are aware of this and hopefully they can repair/replace the affected parts.

This is the same problem I am having, Thanks.

Milo,
I had a similar issues in Portland when it was 115 degrees. I have a 2018 Class A so the A/C is new(er). At just over 100 degrees the A/C just turned off. I was wondering, do you have soft-start on the A/C? I do and wondered if that was why the A/C turned off. I'm only 30amp so I guess I was more forgiving with the issue, but I did have to check into a hotel until about 11pm when it finally got below 95 degrees and the A/C worked.

Lisa

Just an update and answers to some questions. I did have the SoftStart installed however, the ac issues were happening before the SoftStart was installed AND continued after the installation. Ray provided some very helpful information above. I provided that information to my local/authorized Keystone Service dealer. They were not aware of the issues occurring with some ACs. So, they asked if I could take my TT to their location so they could get some numbers off of the “gateway” installed on the AC. They had a list of the affected AC gateways. Mine was NOT on the list. They said it was off by one number. So they are going to contact Keystone to see if the one I have is eligible for replacement.

I suggest downloading the link Ray provided and contact an authorized service dealer for your TT’s AC.

I’ll let you know what they say about getting it replaced.

Thanks again Ray.

Milo

Thanks for the update. I can add that this summer we had abnormally high temps for these parts as high as 104.5F and our 10-year-old Coleman Mach 3 AC didn't miss a beat. So something must be wrong.

Hello all,
Just another update on the above mentioned issue. So Keystone told the local authorized service company that my AC’s gateway was NOT part of the recall/service. They suggested updating the software on the iN-Command monitor and that it may resolve the issue. So I went to the iN-Command website (https://in-command.net/) downloaded the latest software (mine was several versions too old). Took the thumb drive to the monitor and loaded it. iN-Command has very good instructions on how to do all this. Anyway, the temps have not been high so I don’t know yet if the software update corrected the problem. Have to wait for it to get hot around here. However, the update did create a new issue: I can no longer connect to it via Bluetooth to any devices. Anyway, iN-Command instructed me to send the monitor to them so they can test it. If there is an actual defect they will replace it and if not, they will return it as is. Not functions properly.

Sorry for the long update but I thought it might help out some.

Milo

https://in-command.net/

Thank you Zenitrame