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My Honeywell rth230b thermostat continues to give me a flashing snowflake signal and will not allow the AC to turn on.

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Your snowflake should flash for about five minutes, that is the time delay built into the thermostat. It should stop after that and your system should begin to function.

Posted on May 29, 2008

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The snow flake indicator is a feature of the unit. I doubt it is not functioning. Just let it blink for a few minutes then you should be able to use the unit. If you need any more advice checkout AC Repair Fort Lauderdale

Posted on Mar 03, 2015

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