After the 4 months that the trailer was parked for winter, 2 of the TST tire pressure sensor caps did not register pressures. Thanks to the manual I had bought sensor batteries year ago. Sounded easy, unscrew little screws replace battery replace cap protector and they would sync themselves. How many of us carry a 00 Phillips head screwdriver? Ran to Tractor supply, got the protective caps removed, screws out battery replaced and the O rings (makes the internal sensor waterproof) completed fell apart after 4 years. Replaced it without the O ring and called TST the next day.
We had “first generation” cap sensors with the little screws “. Since we did not receive the replacement pack of O rings, stems, screws , and OO screwdriver when we bought it. They referred me to TechnoRV that service their products. $12 later we will have them when we get home.
Never occurred to me that there are “generations” to the products in the RV. So now it’s another learning curve….
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