Question about Heating & Cooling
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Posted on Jan 02, 2017
Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.
Posted on Oct 14, 2007
4-wire typical wiring of a thermostat is: Y (Yellow) G (Green) W (white) and R (red). Inspect the thermostat to see if it has a jumper from R1 to R2. If not, put your red wire on R2. On a 5-wire thermostat you may have a blue wire. This will go to the common terminal (usually C but sometimes B) check the inline fuse in the air handler to see if it has blown. Replace it only after wiring the thermostat correctly.
Posted on Dec 03, 2007
SOURCE: Honeywell Thermostat RTH 7500
Assumed all the wiring are correct,
to change from manual switching from heat to cool, press [system] button ( left ) to go into system setting.
then press and hold the [fan] middle button untill option display 120
use up down button to select option 300 ( Manual/Autochangeover) ,
select 0 for manual, 1 for automatic. ( read caution in page 22 of installation manual )
Posted on Oct 14, 2008
The smell is usually dust on the wires for electric resistance heat.The thermostat shouldnt have anything to do with it.
Posted on Nov 20, 2008
sounds like the thermostat is not energizing the reversing solenoid , unless you have some experience with electrics i recommend that you call a trades person, to check this problem a multi meter is required and requires the user to know how to work with power , please do not attempt it yourself ...
Posted on May 11, 2009
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