Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
It should reset itself off purge then system will come on. If not take cover off zone board and press the purge override button.
Posted on Jun 09, 2013
Sounds like a furnace problem - the zone control sounds right
Posted on Oct 08, 2009
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Posted on Jan 02, 2017
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The flashing light is giving you a code as to what is work... have you tried to recycle the power???
Here is a tip that tells you how to get a manual for most any Honeywell product online...
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