Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
Replacement parts (cells, prefilters & postfilters)
All replacement parts for an air cleaner are available through a licensed heating and cooling contractor.
Posted on May 25, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
"PLACE A JUMPER (PIECE OF WIRE) BETWEEN Y AND W IF YOU ARE USING A HEAT PUMP WITHOUT AUXILIARY/BACKUP HEAT." if this dosnt work check the fuse in the air handler you may have blown it if you did not turn the unit off before installing.
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