http://highperformancehvac.com/hvac-thermostat-wire-colors-terminal-designations-and-thermosat-color-chart http://highperformancehvac.com/air-conditioners/110-air-conditioning-troubleshooting http://highperformancehvac.com/heat-pumps/93-troubleshooting-heat-pumps-heat-pump-troubleshooting
I joined expat.com on 03 June 2011.