Question about 2005 GMC Canyon

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Fan motor doesn't work on 1-3 but works on 4 for the A/C and Heater. Is it a fuse or switch problem?

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It's your blower motor resister. It is located on or near the blower motor. This, when it goes bad, will cause your fan to only work on high.

Posted on Sep 03, 2010

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1 Answer

My blower motor wont blow


bad fuse,
it can only be 3 things, a voltmeter finds this easy and every time.
bad fuse, bad switch bad, motor.
as we all know that includes all wires and connections, fore ever.
so you can check the blower , 12vdc on high.
if 12v there, and motor is silent the motor is bad or lost its ground.
to check that 100% apply 12vdc to the motor, bingo it works?
so no 12v to motor, must be bad switch, huh? after all the fuses is already checked(with ohm meter not eyes !)
so now i have 12v to the switch and no 12v out. must be a bad switch
easy huh?
ill now look yours up to see if there are other oddities.
alldata.com
ahh , up to 4 blowers, 2 front and 2 rear. fun but the 2 front are in parallel. and bingo, all 4 have there own FUSES !@!!!
forget that its rear and a/c only , what a complex car. no biggy
electrics is my game
i go to page 3 for HVAC, allh the heater, omg 2 relays 1 fan
the switch does NOT power the fan.
the switch only energizes relay 1, the ground relay
this heater relay pulls in and grounds the FAN.
ok 1/2 done.
next relay is Power side blower relay.
it gets 12vdc power from its very own 40Amp, Circuit breaker
the switch also ground this relay, it too energizes and bam
12vdc hits the fan
id bet the fan is good, and shock, no need to pull dash to get it out...
all that , in 5min flat , alldata.com
try it.

ask questions.

Jan 24, 2014 | 1995 Toyota Previa

1 Answer

1983 Chevrolet C10 Silverado: The AC compressor and heater blower motor fan will not come on.


The brown wire at the speed switch is the power wire. Powers is then directed to the blower motor resistor throught the orange, lt blue and yellows wires. The blower motor receives power through the orange wire. Check for power at the fuse with the key on. If there is no power the problem could be the ignition switch or the wiring in between the switch and the fuse block

Apr 05, 2013 | Cars & Trucks

1 Answer

2007 Suzuki Forenza ac/heater/defrost fan not working


the cab heater fan?, there can be 4 fans on some cars.
front condenser, 2 on rad, and 1 in cab heater box.
the cab fan? does it fail on high too?
it has a switch, (marked fan speed)
the switch is bad ,if low speed are dead. and high are good.
or wiring to it , the motor or the fuse.
even a cracked fuse, change the fan fuse to a new fuse.

Mar 29, 2013 | 2007 Suzuki SX4

1 Answer

Ac/heater fan doesn't work


According to my wiring diagram, the blue and white wire from the blower motor gets power from the key switch. The fan switch and resistor grounds the motor.
No blower fuse is listed.

Feb 03, 2013 | 1988 Honda Accord 4 Door

2 Answers

My a/c (heater & Defrost) doesn't always work, could it be a fuse or the fan blower?


Check whether you might have bad connection or contact,or e ven bad switch.

Sep 03, 2012 | 2005 Kia Spectra

1 Answer

Heater blower motor doesn't run


check under your dash by the fuse box might be there

Mar 24, 2012 | 1998 GMC Sierra

1 Answer

The heater is working, if you touch the duct is hot. but no air is blowing out.


Hello,
Try your blower on all speeds. Sometimes the high speed will work and that would mean you have a bad resistor for the fan motor.
If it doesn't work on any speed you could have;
1. A blown fuse.
2. A bad fan switch.
3. A bad connection/short somewhere between the switch and the fan motor.
4. A bad fan motor.

This is the order that I would troubleshoot from.

I hope this helps you.

Feb 03, 2011 | Chrysler Town and Country Cars & Trucks

2 Answers

Heater blower stopped working?


Hello,
You may want to try your fan on all speeds. If it will work on high, you have a bad resistor for the fan motor. ( high speed doesn't go through the resistor ).
If it doesn't work on any speed, I would check the following;
1. Make sure the fuse isn't blown for the fan blower motor.
2. Check, or have checked the wires between the fan control switch and the fan blower motor.
3. Have the fan control switch checked.
4. Have the fan blower motor checked.

I hope this helps you.

Feb 03, 2011 | 2002 Buick Rendezvous

1 Answer

I have somthing wrong with my heater fan it does not work


OK..Assuming the fuse and relay are ok i would kick the lower part of the dash. This sometimes jolts the fan back on. Here is what it could be.
1 fan motor
2 blower motor resistor
3 Blower motor switch

Jan 06, 2010 | 1999 Dodge Stratus

2 Answers

VW Jetta GL 2000, AC - Heater Fan stopped


blower motor or resistor or the blower motor control switch.

Jun 01, 2009 | 1998 Volkswagen Jetta

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