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

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EEE display code error on CT3600 Honeywell

What does the EEE display code error on CT3600 Honeywell programmable thermostat mean and how do I fix it? When I went to switch from cool to heat the display flashed low battery and then went out. I replaced the batteries but don't know what's causing the EEE code the display is showing. Please advise and thanks!

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I am a honeywell dealer and this stat is obsolete and no longer supported. I am not able to pull any info on this. It might be time for a new one.

Posted on Oct 07, 2009

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Follow the below link, select thermostat on the upper box, then type CT3600 on the lower box.

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