Hello everyone! I installed a thermosat today and I think (Well I no) that I have the wiring mixed up because the heat is not working. And it's very cold and I really would like some help! Now there are four wires One Green One Red and Two Yellow one's. :eek:

See this post for (https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-frequently-asked-questions-58313.html#post268203)thermostat information.