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PDA

monika khadjehnouri
Jan 25, 2008, 07:58 PM
I Have A Carrier (58gsc)upflow Furnace & A/c Unit, Which Is 18 Years Old.
When I Tried To Turn The Heater On , Only Blower Came On & Would Not Turn Off Unless Disconnected From Electricity.
Replaced Sofar Control Unit, Thermostat,transformer Was Blown,& Finally The Limit Switch.
When I Disconnect The Limit Switch The Fuse On Control Unit Will Not Blow.
I Tried Disconnecting Wires One By One ,the 3 Amp Fuse Kepps Blowing, Only With Limit Switch Wire Disconnected It Stops Blowing The Fuse.

Please If Any Body Can Help, Give Advise. Thanks
cgregory67
Jan 25, 2008, 08:47 PM
C= Common
Y= Cooling
GC= Fan Cooling
GH = Fan heating
R= Power
W = Heating

http://www.xpedio.carrier.com/idc/groups/public/documents/techlit/58dfa-13si.pdf

http://i151.photobucket.com/albums/s160/Houston204/Carrier58GP58GSdiagram2.jpg