They should be inside the door of the furnace.
If not, try the Service and Maintenance Instructions at

http://www.xpedio.carrier.com/idc/gr.../58mxa-9sm.pdf
if you have the 58mxa
or
http://www.xpedio.carrier.com/idc/gr.../58mxb-1sm.pdf
if you have the 58mxb

Comment:
Carrier seems to make all of their product data, installation, and service
manuals public. This has more than once helped me catch errors that HVAC
contractors made, or help contractors service my system. Trane, on the
other hand appears to have less documentation, and even contractors seem
have a hard time getting it.

rmm wrote:

Does anyone have the error codes for a Carrier 58MX080-12 furnace. The
led blinks one short,one long, two shorts.