Hello, I just purchased this home I'm in and both of my Carrier gas furnaces are not blowing any heat. I had the home inspected and was on site when the home inspector tested the air & heat... both worked fine. While painting the inside of my home I removed the thermostats to paint behind them but replaced them correctly. Once the remodel was complete we moved in and the a/c worked great during the summer but the heater isn't blowing hot air. I've done as much research as possible but can't come up with anything. Both units say they are 58PAV's but one is larger than the other. The larger unit has a LED light but is always solid with no blinking for codes. The smaller unit does not have an LED light. Any suggestions?

Is your thermostat switched to heat? Is your gas on? It's possible when you pulled your theromstat off the wall, you disconnected a wire on the back. That's all it would take