Blower Switch

I have a97 safari van and the blower switch does not work on high and low , I replaced the relay it worked for a short time and now its not working again any answers?

let me know if you figure it out. Have the same problem with my 90. replaced everything but the blower

75% of the time its the blower motor under the hood...NAPA sells a very good replacement for around 65.00...PS you power window motors are the next thing to go...find one on EBAY, they start at 39.95....better the the 109.99 the dealer wants for the same made in mexico motor

Did you try the blower motor resistor? This controls your fan speeds. you can pull your current one and inspect it pretty easily.

where is the resistor located? I do not have a manual for this van.

if you have only high speed then maybe the blower resister is bad if you have first tow speeds then high speed relay maybe is bad if none of speeds works then maybe the blower is bad or no power to a/c control head,if no power then maybe you have blown fuse or bad ignition switch.
the blower resister located on right side above the blower.thanks
michel

I have already changed the relay above the blower, I don't get any speed unless I tap the relay, then it will work on high, but not lower speeds. If I shut the blower off I need to tap the relay again.

make that you replaced the right relay the has red.blue.black.orange.and purple wires

start by checking the circuit, beginning with the fusible link for any evidece of burnig, overheating, open fusible link or any other cause of intermittant operation.

the high settings of the blower circuit draw a good bit of current and have historically been discovered to become damaged by overheating of components in the circuit.

make that you replaced the right relay the has red.blue.black.orange.and purple wires
I have a 96 that only works on lower speeds. No high blow. Where is that relay located? and where is the fuseable link located? I found several relays in a box on the drivers side under the hood. swapping them around did nothing. I have no power to the resistor when the dash switch is on high. The dash unit is new ($149.00)due to the vacuum switch falling apart. (Everything plastic is self destructing on this vehicle.) It appears that all the fuses are good. The previous owner said he had "some switches" replaced a year or so ago.Didn't remember which ones..Not much help there. Is there a CD or manual that REALLY covers these vehicles available? The generic books in the parts stores are useless. Thanks for any advice! I sure love this van and intend to keep fixing as long as parts (and advice!)are available. Dave Florida