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

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I have a Honeywell 7 day programmable Thermostat. I've noticed that the screen goes blank every so ofter. Is this a problem?

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Sounds like you are loosing the low voltage when this happens either from a loose connection or a possible short. Make sure all connections are tight

Posted on Dec 11, 2009

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Thermostat is not coming on we are in san antonio is there help out there for us


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Manual honeywell programmable thermostat


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

http://yourhome.honeywell.com/home/Applications/FindOwnersManual.aspx

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There is no battery, but I have one as well and it also goes blank. When that happens, you pull the front bezel off of the back mounted plate carefully and put it back on by attaching the 2 tabs at the top, then swing the bottom back towards the plate until the 8 pins go into the connector on the removable bezel. When you first pull it off, do it slowly and pull from the lower sides straight out.
I think what is happening is the pins get corroded and lose contact with the removable front.
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try to get one that is made for oil heat, the installation is easy only two wires, and the instructions make it easy.

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