Are you in OP again? If so, I will try to find the name of the maint guy you need to ask for. Their "head" engineer hides the instructions that come with the unit for shutting off the pre-set temp and the cycles per hour but last I knew he finally found one. If not, he can open the cold valve so that it is constantly on regardless of what the temp is set at. That won't help when the unit kicks off after 4 hours, but should get the room temp down when it does run.

It's funny, I have been looking for instructions for a few different models and one of the selling points these manufacturers use is that the units can be programmed to ignore what the guest sets it at, and only follows the pre-set program. If that's not a perfect example of what the hospitality industry is turning into.....

VIP Mode on Inncom Thermostat

- While holding down "display"
- Press "off", then
- Press "Up" arrow
- Release "display" button

Yes Matt, thanks. Its not an issue this week since I had them pre-block for me the one room that I know DOESN'T have the kick-off issue. Doesn't get a cold as I like to sleep at but at least it stays on consistently. But it would be great to know in case I can't always get it in the future...

I did get into the programming mode...
 

Has anyone had any more luck adjusting one of these things? I recently ran into one, and thought I had it beaten, only to ultimately be thwarted.

I believe them to be made by a company called Hoteltech, and to be one of two models, the Optimax or the Ultra.

A fairly exhaustive search of the internet for a full manual was fruitless. The company wisely posts no manuals online, while bragging about their product saving energy costs while fooling guests into thinking they are cooling their rooms-- classy. I did run into this PDF in multiple locations, but it lacks the override instructions.

http://www.surplustraders.net/specs/ts598.pdf

I wonder if we might be looking for the other side of that sheet, or if the company communicates the special instructions to the hotels under separate cover. If it's included with the thermostat, it might be worth it for a frequent Marriott traveler to buy one of the stupid things on ebay just for the instructions-- they're not all that expensive.

http://www.ebay.com/sch/i.html?_trks...at=0&_from=R40

Frankly, I'm surprised the instructions haven't leaked online. Come on, there must be a disgruntled HVAC or hotel maintenance guy out there who want to help out the guests, right?

So I the decided to try a brute force method of button pushing to see if I could get into the program mode.

After about 10 minutes of systematically trying various combinations of long presses, holds, short presses, etc., I eventually got lucky and entered into a programming setting.

I know I was holding the power button, then I believe pressing and holding the fan button, then pressing and releasing the up arrow, then releasing the fan button (while continuing the hold the power button). I may have even been pressing both the up and down arrows. I know for a fact that I was holding both the power and fan buttons, and ultimately released the fan button (when I released the arrow ones) but kept holding the power button for the durration of the adjustments.

I believe the first adjustable setting was the start temp that thermostat reset to upon coming on. By repeating the hold fan/press up and down arrows (while continuing to hold the power button), I could cycle through the other settings, including max temp (for heating I guess), min temp (for a/c), some fan shuttoff settings, etc. Any given setting was adjusted using the up/down arrows.

The thing is, the changes I made didn't save. I suspect that this is because I had to finally release the power switch, which turned the system off. I turned it back on, and knew that my adjustments hadn't saved, because it returned to the "old" starting set temp and not the adjusted one that I had programmed. My guess is, you should start with the system off, so that when you press, hold, then ultimately release the power switch, you are leaving it on.

Still, I figured I had it licked, and could try again later. When we returned to a hot room after a day of sightseeing (thanks, maids, for turning up the thermostat on us), I repeated the sequences above and was completely unable to re-enter the programming mode. I tried for a while with multiple combinations, all to no avail.

Perhaps there is a lockout feature allowing adjustments every few days or something? I'm not sure, but I post the above in the hopes that someone else might be able to start there and finally beat this thing, post their results, and be a service to humanity.

I've now started downloading and collecting these thermostat manuals (or just the text descriptions of the hacks) for use when on the road. I don't even travel that frequently, but it's nice to have them at your fingertips in a cloud storage account when you need them.

Incidentally, we were able to get the room to cool down better at night with a less elegant solution than the override codes. I turned the GPS functions of my phone on, plugged it in to charge, and draped the plastic ice bag over it and the thermostat, making a nice little greenhouse powered by my charging, GPS running phone. This seemed to trick the thermostat enough to want to cool the room much better.

If anyone can run with the above, please, please, please post the solution.