What fuse or relay do i need check because the fan will not come on
Blower resistor. Is bad
The blower isn’t blowing on my 2004 Mercedes s500 is it a relay, and where is it located?
The dealer has some problems with these I think. Bad fuses and such. Check to see if the blower motor is getting power after you turn it on. Check to see if the resistor block (in series prior to the blower motor) is good.
SOURCE: heater fan not working
my car is Isuzu rodeo, this morning found the blower of heater not turning no heater work.
SOURCE: Heater/Air blower not working.
check fuses. first then check controller before changing the blower.
SOURCE: blower fan not working - Hyundai 2004 Santa Fe
Try a SHOCK test to the blower motor case. What I mean is SHOCK the case by hitting it with the palm of your hand (make sure you have the blower switch 'HIGH' and the IGN key also 'ON'.. if the blower starts working, you have an intermittent contact in the motor itself. If this doesn't work, get a test light and connect it to the connector that plugs into to the blower motor - if the test light illuminates, then the problem is obviously in the motor. If it doesn't, then you have a wiring/switch/power supply problem.
SOURCE: blower motor does not work
I had the same problem, replace, replace, replace. Check, check and recheck. What I found was the blower motor resistor, located in the blower squirrel cage area, two prongs and a curly wire, was bad. Took the new one back, (it ohmed out okay, continuity ok, all ok!) replaced it with another, and Bingo, problem solved. Frustrating to say the least. After two relays and a blower switch, and test, test and retest. It was a faulty resistor. Made in Mexico. And no guarentee, even though new, it works. Trial and error. Even the dealer parts are Honcho en Mexico. Thanks NAFTA. You gonna make us all welfare babies.
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