Are you sure it's not the thermostat?

来源: 于 2011-01-07 19:26:31 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Check this: 1. thermostat heat on, fan auto

            2. thermostat heat on, fan on

            3. thermostat heat off, fan on

what did you get?