I could not get mine to fire up one time (Mine is gas only) so I turned off the switch (outside behind the access door) for a couple of minutes then turned it back on. The I went back in side and I turned the thermostat back on and set temp. It fired right back up.
I think before I tried this the thermostat had an error code or would not respond to inputs but this cleared the code/fix it for me.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, Fresh water surge tank, Black Tank Tornado flush, 4999 zip ties.