2008 f-350 super duty heater blower is not working

SOURCE: 1977 Ford F-250 removing heater blower fan

hello your heater blower fan is located in your heater box pass you will see a stop sign shaped flat flared end metal piece about 6inches diameter all the way around held in with either 6 or 8 1/4bolt heads unscrew these unplug wire feed pry lightly away from box fan assembly will come right out if your blower moter doesnt come with plastic fan fins you will need to use the old one usaully held on with a clip once removed slide off the fan shaft install to new motor reintall if no gasket take black permatex apply a thin coat around outer edge of new fan tighten plug power back on done goodluck

SOURCE: heater quit blower not turning on

there are fuses just for the heater motor alone, a relay under the hood and a fuse in the fuses box, look in you owners manual if you have one or some times the marked. youll find the fuse box under the dash board or in the side of the dash board on the driver side and look for a black box under the hood, the book should tell u what relays and fuses are what

SOURCE: 2004 Ford F150 - AC/Heater blower speed 1 & 2 not working.

You might have a bad speed selector switch, or your blower motor resistor is faulty.

SOURCE: 1997 ford escort, heater blower and wipers don't work

Disconnect blower motor & try another fuse....if it don't blow fuse then blower motor shorting out..

SOURCE: Heater blower switch only works in postions 3 and 4

Heat limiting capacitor is blown on low side. Limits excessive heat to components. Three capacitors on one board. One is constant. One runs two lower speeds and other runs two higher speeds. Need to replace. Follow wire from blower motor back towards center of vehicle. The capacitor is approx. 1.5" X 2.5" and is mounted with two screws. Simply remove plug and two screws, pull out capacitor. Replace with new in reverse order. Did last year. Part was relatively cheap and easy to replace. You do have to be somewhat limber to fingers and tools under there.
Good luck.