I have an old gravity furnace and recently it's been cold enough to where it should have come on. But, even when I set the temp to 90, it still won't turn on. I've replaced the thermostat because I was told that these types of furnaces basically contain no moving parts to break, so I figured it might be the thermostat. Well, still no dice. What else can I check/do to get it to turn on? It worked fine last winter and we didn't do anything to it but turn down teh thermostat when it started getting warmer. Thanks!
- posted
18 years ago