Heater (furnace) question
I have the same thermostat, it sounds like. But the slider on the bottom does work to control the temp. I used it this weekend and it worked great. There are other threads about folks that have put in cheap digital thermostats to replace the one you and I have.
2015 Jayco Greyhawk 31FS-"Scamper"
2015 Subaru Forester 2.5i Prem. 6 Spd
Blue Ox Aventa LX Tow Bar
2014 Jayco Jay Feather X23B-"Glampy"(Sold)
DW, DS, DDx2, and Bandit & Fletcher