You've come to the right place for do-it-yourself heating and cooling maintenance, repair and troubleshooting. Browse and search the items in this thread, and in the other posts within this area... and if you don't find what you're looking for, feel free to click the "Ask About Heating & Air Conditioning" button at the top of any page.
I'll use this space to post some answers & solutions to Frequently Asked questions
1. Information to include with your question
2. Common Thermostat Wiring Help
3. Part identification
... more to come :)