Consequence
THIS COULD RESULT IN MELT DOWN OF SURROUNDING PLASTICHOUSING AND POSSIBLE IGNITION OF THE MELTED MATERIAL, RESULTING IN A FIRE.
Remedy
REPLACE BLOWER SWITCH RESISTOR WITH RESISTOR WITH FUSIBLE LINK, AND RELOCATE THE RESISTOR TO A LOCATION WITH INCREASED FLOW OF COOLING AIR.
Notes
SYSTEM: BLOWER MOTOR.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.DESCRIIPTION OF DEFECT: BINDING OR FREEZING OF BLOWER MOTOR WITH LOSS OF COOLINGAIR AND INCREASED CURRENT DRAW COULD CAUSE BLOWER SWITCH RESISTOR COIL TO HEATEXCESSIVELY.
Source: NHTSA ODI recalls file, campaign 91V035000. Text as published by NHTSA.