Where is heater blower fan fuse on a 2000 olds alero? how do you tell if fuse is bad?

On this website you find fuse box diagram and description for Oldsmobile Alero (2000)

Oldsmobile Alero 2000 fuse box diagram Auto Genius

blower , heater dead.?
use a voltmeter, and find out what is wrong, in minutes.
first check voltage to the blower,
on fan high.
got voltage there. then the blower is bad.
no voltage there, then its not the blower bad. its controls or power feed.
my guess is you dont know that fuses that look good can in fact be bad.?>
old post. but here goes.
of lost, use a schematic, they tell you how the circuit works.
click here
on TJ
then heater........
FSM
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

shows 7 things can be wrong. (omg what to do, use a meter)

now click A/C heater page.
same FSM.
got 12vdc to both JB fuse 8 and PDC fuse , keyon,
both sides of fuse must be 12vdc or the fuse is BAD.
got 12vdc to blower relay pin 1, (bad relay if not, or?)
if you have 12vdc on pin1 then then check voltage at
blower B wire,
if wires is at 12vdc that means the blower switch is bad.
if the wire to the switch C3 pin C is 12vdc that means the ground to the heater control is open. correct that
if the pin C3pin C is 0v, that is good, if switch is on high
and the C1 pin A is 12v, that means the switch is bad, or wires to it cut
or the connectors to IT are corroded.

just a $10 walfart DMM meter, and bam , why is know.
no guessing or pulling out hair.
as you can see the dash heater switch grounds the blower.
if it can not ground the motor, the motor will be dead.
that is how it works.

CHECK BLOWER MOTOR RELAY ALSO, AND USE A TEST LIGHT TO SEE IF POWER GOING TO BLOWER MOTOR, IF YES BLOWER MOTOR FAULTY.IF NO POWER GOING TO BLOWER MOTOR AND FUSE AND RELAY OKAY CONTROL SWITCH COULD BE BAD,A RESISTOR BAD MOST OF THE TIME IF YOU DONT HAVE BUT A FEW FAN BLOWER CONTROL SPEEDS.

1) Your blower is getting bad, the motor starts out normal, as it get going the blower motor becomes hot and shut down 2) You have debris stuck in the blower fan, you need to locate the blower and clean the airway if it is clogged. 3) Checking your relay, as relay could be bad and not providing the voltage to it.

Check all your fuses.If all fuses are ok, then check power at the blower motor and ground at the blower motor. If ground and power are present then replace the bower motor if not check the relay and blower motor resistor.

MOST TIMES IT IS A BAD BLOWER MOTOR. TRY TAPPING ON IT WITH HAMMER. THIS SOMETIMES WORKS.

i would say it is the blower motor

The blower motor resistor is bad.It is located on the passengers side by the blower motor.You will need to replace it.Just follow the blower motor noise when is is on and you will find the resistor very close to the blower motor.The wires from the blower go to the resistor.This is a common problem for most makes.Hope this helps.Good luck.

check blower motor relay but it sound like blower motor control switch is bad.

The blower is on the right hand side under the dash. You are right in thinking the blower resistor is the problem. The resistor is in the heater box behind the blower. Only 2 bolts hold it in but the back one can be a challenge to remove. The bolt is 5.5 mm.

Check for power and ground with a test light at the resistor connector. You should have power on the colored wires in the various switch positions. The black one is ground.