Recall 10V561000: Startrans bus corporation

Report received

Nov 15, 2010

Manufacturer

Startrans bus corporation

Potentially affected

53vehicles

Model years

—

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

Startrans is recalling certain model year 2003-2007 mfsab school activity buses equipped with trans/air ta73 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.

Possible consequence

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.

Remedy

Trans/air, in cooperation with startrans, 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 january 7, 2011. Owners may contact trans/air warranty and service center at 1-800-673-2446.