Question about 1996 Chevrolet Astro
While i am not sure of the location there is a resister or a relay in the circuit that allows the fan to run on lower speeds. This is bypassed on high (full speed 12 volts) and is not used. i would try to find its location. The possible locations are fuse panel under hood or dash and near the blowers themselves.
http://www.autozone.com/N,15700607//shopping/partTypeResultSet.htm
or
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800a8130
Posted on Aug 16, 2008
SOURCE: Heat/AC Blower fan speed only works on High
Alot of people have the same problem with the fan switch and blown bulbs. There really is no fix for this. Jeep really screwed up when designing the heater control assembly. The cheapest solution is to buy another unit off Ebay. Can always go to the dealer but be ready to PAY for there mistakes.
Posted on Jan 21, 2009
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.
Posted on Mar 17, 2009
SOURCE: F150 2004 blower working only on high position.
Call your local Ford dealer parts department and explain your problem. Ask them for a base part number 19A706 resistor and the location so you can replace it. This part is located in the heater plenium chamber under the dash. This should reactivate your fan speeds to normal. You might also want to check the electrical conection to the resistor, as it has been known to melt from high heat at the connection. That part, if needed is 14S411. The numbers I've stated are base numbers. Your local Ford parts guy will do the rest.
Posted on Mar 23, 2009
SOURCE: HEATER BLOWER MOTOR ONLY WORKS ON HIGH SPEED
THERE'S A SENSOR UNDER THE PASSENGER SIDE OF THE CAR UNDER THE GLOVE COMPARTMENT YOU HAVE TO LOOK WAY UNDER JUST LAY DOWN ON TOP OF THE MATT IN FRONT OF THE PASS SEAT IT HAS 2 SCREWS ON IT UNPLUG IT THEN UNSCREW IT TAKE IT TO THE DEALER IT COST ME ABOUT 30 TO 50 DOLLARS BUT THAT WAS THE PROBLEM I HAD. GOOD LUCK
Posted on Apr 01, 2009
SOURCE: Heat/AC Blower fan speed only works on High
hello, this sounds like a bad blower motor resistor!! its cheap and easy to change..if you need more info on locations let me know,, good luck.....marty
Posted on May 27, 2009
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Posted on Jan 02, 2017
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