2007 ELDORADO AEROTECH; 2008 ELDORADO AEROTECH
Check against the official notice below — it lists the full affected range.
Eldorado National is recalling certain 2007-2008 Aerotech buses equipped with Trans Air TA 73 evaporators. The evaporators use a power resistor to control blower speed. If a short circuit occurs in the low or medium speed circuit while the blower operates at high speed, the voltage can feed back through the resistor to ground without drawing enough current to blow the fuse. This causes the resistor to overheat to temperatures high enough to melt and potentially ignite the plastic blower housing it is mounted to, creating a fire hazard.
Eldorado National and Trans Air will install a thermal shutdown device in series with the speed resistors to prevent this hazard. The installation will be performed at no cost to the owner. The recall began on November 4, 2010. Affected owners should contact Trans Air Warranty and Service Center at 1-800-673-2446 to schedule the installation.
Written by software from the official notice below. Not reviewed by a lawyer.
THIS WOULD CAUSE THE RESISTOR TEMPERATURE TO RISE TO A POINT WHERE IT WILL MELT AND POSSIBLY IGNITE THE PLASTIC BLOWER HOUSING TO WHICH IT IS MOUNTED. THE OVERHEATING CAN RESULT IN A FIRE.
ELDORADO IN COOPERATION WITH TRANS AIR WILL INSTALL A THERMAL SHUTDOWN DEVICE IN SERIES WITH THE SPEED RESISTORS. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 4, 2010. OWNERS MAY CONTACT TRANS AIR WARRANTY AND SERVICE CENTER AT 1-800-673-2446.
ELDORADO NATIONAL IS RECALLING CERTAIN MODEL YEAR 2007-2008 AEROTECH BUSES EQUIPPED WITH TRANS AIR TA 73 EVAPORATORS. THE EVAPORATOR UTILIZES A POWER RESISTOR TO REGULATE BLOWER SPEED. SHOULD A SHORT OCCUR IN THE "LOW OR MEDIUM SPEED" CIRCUIT WHILE THE BLOWER IS IN HIGH SPEED, THE SHORT WILL CAUSE THE SUPPLY VOLTAGE TO FEEDBACK THROUGH THE RESISTOR TO GROUND, NOT DRAWING ENOUGH CURRENT TO TRIP THE FUSE.
Republished from the official source above; details can change — the source record controls.