HVAC Switch Failures

An NHTSA Preliminary Evaluation into Ford vehicles. Closed 21 April 2010.

Investigation
PE09055
Type
Preliminary Evaluation
Opened
7 December 2009
Closed
21 April 2010

What NHTSA investigated

ODI has received 1 complaint and reports from 4 transportation fleets alleging 182 switch failures.Each fleet operates mini buses built on a Ford E350 or E450 cutaway chassis.The OEM HVAC blower switches have melted, smoked, burned or experienced open flame and become inoperable on vehicles in each fleet.Some drivers have reported a burning smell or smoke coming from the dash.One fleet reported a vehicle fire.No injuries were sustained.However, the bus was carrying special needs children when the driver noticed smoke coming from the dash.The driver was able to evacuate the children prior to the vehicle becoming engulfed in flames.This PE has been upgraded to an Engineering Analysis (EA) to determine if the blower motor switch failures create a situation where a vehicle fire is possible and presents a safety risk to the driver and other passengers.

Vehicles covered

MakeModelModel years
FordE-3501997–2008
FordE-350 BUS2003–2007
FordE-4501997–2008

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.