Thor Forums

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Your alarm was set too low. For my coach which I run at 82 PSI cold I set the high alarm at 100 which usually never gets exceeded. This winter I topped off the tires for a trip when the ambient temperature was in the 30s. Worked fine for that trip. Next trip the ambient temperature was in the 70s -80s and the cold pressure was in the upper 80s PSI. I was too lazy to drop it before we left; after about an hour on the road I got my first high pressure alarm. 30 minutes later another one. The pressures never went over about 103 PSI but if I had dropped my cold pressures to where I normally have them there would not have been any alarms.

Another tip for those who live in the south: I was out in my yard in the morning a couple of weeks ago near where I park the RV and heard the TPMS alarm going off. I had forgot to turn it off but the reason it was alarming is the temperature of the east facing outer rear wheel was indicating over 150 degrees even though ambient temperature was in the 60s. The early morning sun shining at the wheel simulator was like a dish with the sensor close enough to the focal point to really heat up. This can't be good for it so now an appropriately sized piece of plywood blocks that wheel from the morning sun.