Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Set at 75 but stays at 80 and won't cool down until night time.

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Sounds like you're low on refrigerant. You might try to measure the room temperature and the temperature coming out of the grill. The temperature coming out of the grill should be about 20° lower than the room temperature. For instance if the room temperature is 80°, then the temperature coming out of the griil should be about 60°.

Posted on May 08, 2010

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Posted on Jan 02, 2017

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1 Answer

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Thermostat says it's 64 degrees inside so the cold air will not turn on but it's still 80 outside and it's still about 75 inside won't blow cold air during the night time hrs


Hello, Here is a trouble shooting guide for you and some details of how to fix it based on your symptoms. Here is a link to go to and make sure you jump around the site, it will tell you the fix based on your problem off the trouble shooting table. Link is below , copy and paste in browser. If this helped you, please rate it and some kind words are nice. Thanks Mike

http://home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-repair-room-air-conditioners1.htm

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1 Answer

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