Question about 2003 Mitsubishi Galant

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How to test a blower motor resistor to see if it srtill works

Blower motor works need to check resistor

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  • Mitsubishi Master
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There is a resistor for each speed of the motor and it is unusual to blow all resistors as the lower resistors still allow the motor to work. Check for power supply and switch problems and you will need the ignition switch to ne on to get power. Check that you actually have resistors as later models use a module to control blower speeds and this stops the blower if it fails.

Posted on Jun 14, 2014

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Posted on Jan 02, 2017

roniecon
  • 6826 Answers

SOURCE: my blower motor isn't working properly. I hav

The motor ,or the fan selector switch,and connector most likely are the problem,check the fan,it could be at fault,or the switch,and connector,as for the floorboard being wet,it is most likely the drain for the evaporator is stopped up,look directly below where the ac lines go in the firewall(in the car from under the hood)the drain will be there,blow it out with air pressure,like a air tank,and blow gun.Water will pour out like a water fall if you get it clear.If this was helpful,please rate,and thank you.

Posted on Jul 03, 2010

  • 3 Answers

SOURCE: where do i find blower motor resistor or heaterv

usually it is neear the blower motor in the air box

Posted on Jul 18, 2010

elix0411
  • 3530 Answers

SOURCE: 1997 Eclipse RS, 2.0L: Blower motor suddenly

Welcome to Fixya

There is a fuse box/relay under the hood. Check the box if there are blown fuse and relays that you need to replaced.

Thank you for using Fixya!

Posted on Jun 04, 2011

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1 Answer

98 buick heater stop working


Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Dec 14, 2012 | 1998 Buick LeSabre

1 Answer

Sorry its blower



Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Dec 07, 2012 | 2006 Kia Sportage

1 Answer

My heater blowers dnt work and i need to knw where i can locate the resister blocks for my heater blowers so i can ghange them


Its located under dash,or near glove box.

The dash panel lower side has to be out.

HEATER BLOWER MOTOR


Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

Heater is not working


HEATER BLOWER MOTOR


Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Nov 28, 2012 | 1988 Honda Accord 4 Door

2 Answers

Location of the resister for the heater fan 350 ford 2006


Its under dash panel.

HEATER BLOWER MOTOR


Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Nov 28, 2012 | Ford F-350 Cars & Trucks

1 Answer

How to test blower motor switch 1995 mustang


check the connections at the rear of the control panel . check for power at resistor there is a blower relay

Jun 30, 2012 | 1995 Ford Mustang

1 Answer

My blower motor doesn't work. I just tryed to install a new one and got the same resault. What could be tje issue? And how would I hard wire the blower?


Hi, there no need to hard wire blower motor. Have you checked the blower motor resistor.If not take a test light, turn ing switch then turn on fan motor. then take test light to blower motor resistor and see if you have power there if so check your ground if good,replace blower motor resistor and your blower motor should then work. If i can help any further just re post.
Thanks dodge tec

Jan 04, 2011 | Buick Riviera Cars & Trucks

3 Answers

The fan doesn't work for the front defroster/heater.


Using a test light, check for power at the blower motor connector. If thereis power there, replace the blower motor. If there is no power there, it could be the blower motor switch or the blower motor resistor. The most common is the blower motor resistor.

Jan 04, 2011 | 2004 Dodge Grand Caravan

1 Answer

Blower motor won't work, even with new motor.


Hello Travis.
If yours is dual zone, I believe the resistor (blower control module) is a solid state. Did you check it using the fan speed selector and test the voltage output on the purple wire?
The gray black wire going into the resistor is a variable voltage output from the heater control panel. This signal is amplified by the resistor/blower control module.
The black wire out of the resistor also needs proper good ground.
There is a fuse in the underhood relay/fuse panel that feedback from the resistor output to the blower (purple wire) is also fed back to the heater control panel. Verify this fuse is good.

When blower motors go bad they will often absorb a lot of electrical current. This current has to go through the blower control/resistor and will often burn them out due to the heat developed from the high current load.
These resistors are also mounted in the airflow out of the fan motor to help cool them so if the fan is still drawing current and not blowing the resistor overloads and burns it out.
Not sure how you tested the resistor but I suspect yours is faulty.
If you would like more advise let me know.

KL


Jan 04, 2010 | 1993 Buick LeSabre

1 Answer

Durango vent blower fan


The blower motor resistors are known for going bad. Usually its because the blower starts drawing too much current. What I would recommend doing if you can and have the tools, is to check the blower motor connector to make sure 12 volts is present. If so than I would recommend replacing the blower motor resistor. Then if the same issue ever happens again and the blower motor resistor is bad again, you will need to replace the blower motor and the blower resistor as the final repair.
Here is some info about testing the resistor using a multimeter it you have one:

DIAGNOSIS AND TESTING- BLOWER MOTOR RESISTOR WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
Both the front blower motor resistor and the optional rear heater-A/C unit blower motor resistor can be diagnosed using the procedure that follows. For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Group 8W - Wiring Diagrams.
  1. Disconnect and isolate the negative battery cable.
  2. Disconnect the wire harness connector from the blower motor resistor block.
  3. Check for continuity between each of the blower motor switch input terminals of the resistor and the resistor output terminal. In each case there should be continuity. If OK, repair the wire harness circuits between the blower motor switch and the blower motor resistor block or blower motor as required. If not OK, replace the faulty blower motor resistor block.
Here is the information on replacing the resistor:

REMOVAL
  1. Disconnect and isolate the battery negative cable.
  2. From the passenger foot well area, remove the two hex screws used to secure the blower motor resistor.
  3. Unplug the front blower motor resistor from the wire harness connector.
  4. Remove the front blower motor resistor from the HVAC unit.
Here is an exploded view of the HVAC box. The resistor is #63 in the picture and the actual part may appear slightly different:

spacer.gif 1100_024_0003.gif spacer.gif spacer.gif View Full Image spacer.gif


If any issues such as no voltage at blower connector or damaged or melted connector at the resistor then let me know.

Oct 19, 2008 | 2002 Dodge Durango

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