Fan that blows heat an air stopped working on my 2004 envoy. Should I check fuses first?

SOURCE: 2004 Envoy AC works but does not come out the front vents. Only @ windshield

You most likely have a bad mode actuator. http://forums.trailvoy.com/showthread.php?t=40235

SOURCE: Rear heat blows cold air

one of the second heater core lines is clogged.

SOURCE: 2004 nissan maxima blower motor not blowing air,

Check your blower motor itself, look for power going into it.

Also check your blower motor resistor.

SOURCE: Fan for front not blowing ac compresser not coming on or

sounds like your restrictor box is takeing a ****.. does it work on any of the 4 fan speeds?

SOURCE: Renault Clio Sport 182 Air Con and fan blower fault

I also have a 53 clio with climate control and the fan stopped working. After being quoted £104 by dealership I decided to have a go myself. Bonnet up, remove driverside scuttle cover. Unplug fan resistor 7701051272 (large plug with black wire to fan)remove securing screws and resistor. Dismantled casing and peeled away gel from soldered side of circuit board around mosfet transistor-desolder and remove. Mine was a N342AD 75344G but the nearest I could get was HUF75337P3 from Maplin £1.68. This was the wrong 'package size' but I managed.Close the clamp slightly (before)to hold transistor firmly and then insert transistor and solder. Reassemble. After I got an email from a scrappy QUOTING £20 if you don't fancy the messing about.

Ian