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International Automotive Technicians Network
Re: 2002 International 7400 DT466E A/C Inoperable
Posted to HD/Fleet Forum on 7/6/2010

Here is a description of your codes.

613

14

1

1

N/A

HVAC Control Head air inlet fault

This is a motor fault in the evaporator module. This motor controls the door in the evaporator module duct.

Motor in the wrong position or jammed.

612

14 ... Login to read more.