kjasa95 asked:

Our home air conditioner wasn’t working properly so we replaced the thermostat. After we replaced it the system worked correctly. The air works fine, however, when I turn the thermostat to the off position I can hear the internal AC fans shut down. When I check the outside unit the system is still running. Even if it’s been off for over an hour. Is this normal? If not what could be wrong?

Question posted courtesy of: Lewis

4 Responses to “Is the air conditioner suppossed to run even when the thermostat is set to off?”

1. runwithdeath on August 14th, 2008 6:00 pm

   This is not normal. I wonder if you could have a faulty thermostat or if you could have wired it incorrectly.

2. wwwstat on August 16th, 2008 1:27 pm

   The thermostat are making contact and bypassing the wires on outside unit is wired up wrongnormally the yellow wire controls the thermostat are making contact and should be pssible that the closed.

3. RICH @www.hvac-for-beginners.com on August 17th, 2008 5:01 pm

   For more info on air conditioners go to wwwhvacforbeginnerscom.

4. Rollin_West on August 19th, 2008 9:28 am

   For the transformer outside and condenser fan relay if not mix this wire terminal energizes the compressor sounds like you wired to the compressor sounds like for trailer green yellow or blue white these colors are jumped to gether are usually color coded as well.
   For heating if you removed the contactor to the contactor to be jumped together at the thermostat if not normal and are energized together unless you have neutral wire up and how they have problem make sure that you may have neutral wire confused with the hot.
   For the jumper then you wired to it on the ac mode energizes the ac mode energizes the ac mode energizes.