Question about 1993 Ford Tempo

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93 Tempo heater blower not working

The blower motor is fine. If I run a wire to the resistor the blower will run fine on all speed settings. Is there a relay controlled by the heater/AC control panel?

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  • Ford Master
  • 5,332 Answers

Are you running a ground or a power wire to the resistor?

What wire are you jumping at the resistor?

Posted on Nov 02, 2012

  • mudmagnet
    mudmagnet Nov 03, 2012

    The ground wire on the resistor block is ok. I'm bringing power in on the Purple with white stripe. The other wire lead to the speen selector. the wire color doent match with the one coming out of the fuse block, so I'm thinking there has to be a switch or relay to turn the fan off from the control panel. I'm trying to keep from having to pull the dash out to get at the controls.

  • Jeremy W.
    Jeremy W. Nov 03, 2012

    You will need to pull the heater control. The brown with green wire from the fuse block goes to the heater control. The mode switch then supplies power back to the blower motor through the blower resistor. The circuit goes back to the resistor and then is grounded by the speed switch. It is really common for the pins in the connector at the control head to burn up.

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Posted on Jan 02, 2017

  • 701 Answers

SOURCE: where is the blower motor

Hello stevenmickel: My name is Roger and I will help you: THe resistor is located down by the blower motor just to the left of the motor. I will attach a diagram to help with finding it. Should You need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Rogerrogerf1_2.jpg

Posted on Dec 18, 2010

chrischronic
  • 235 Answers

SOURCE: Blower fan runs high only on 2006 Ford Explorer

if you have manual control climate control then the system has a blower motor resistor . if you have automatic climate control then the system has a blower motor speed control. in eather case the part is under the dash in the heater box. depending on the system you have, buy the part and then look under the dash for like part, you will half to remove the under dash panels to be able to see. the part will be on the heater box somewhare.

Posted on Jan 22, 2009

  • 316 Answers

SOURCE: blower motor resistor

The blower motor resistor is located near the blower motor. It is held in place by 2 screws, and has a wire clip connected to it. Very simple fix.

I hope this helps you, and I wish you luck on your repair.

Posted on May 01, 2009

keemo68
  • 1263 Answers

SOURCE: f150 blower speed

the fan speed is controled by reostat it is located in the blower motor housing. please rate this thanks

Posted on Sep 05, 2008

fossilruins
  • 114 Answers

SOURCE: 1995 explorer heater/ac blower motor

I would check to see if there is a short on the fan controller switch and the motor. sounds like a crossed wire, especially if it's ignoring your speed selection and running when the key is out. could be near the fuse box under the dash. the cig lighter circuit is live all the time as well as a couple others, it maybe crossing with it. I would pull the fuse panels assem down and check for crosses and shorts.

Posted on Jun 13, 2008

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1 Answer

My 2004 dodge caravan front heater speed control switch does not work on all settings.


The blower motor resistor is going bad. There is a fine wire in the resistor, when bad it will not work for all speeds of the motor.Differant size wires for the fan speeds in the resistor. God-Bless!

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Location of heater relay on 2003 ford focus.


There is no relay, according to my info. At the blower motor, green wire is voltage, fuse protected, goes hot with key on. Black wire is ground. The blower speed control switch is part of ground circuit. There are resistors for the lower speeds. Hi speed doesn't use a resistor. If you have good voltage and ground at blower motor and no blower action, suspect the blower motor. Any motor that uses brushes, sometimes you can tap on suspect motor, and it will run intermittently. Sign of bad brushes.
You may be able to use jumper wires to blower motor connector for voltage and ground, from the battery, just to see if blower motor will run? If it won't run, suspect blower motor. If you use jumpers, use an inline fuse, just in case.

Oct 15, 2015 | 2003 Ford Focus

2 Answers

If blower motor resistor is not working, what can i anticipate?


that would affect blower motor , no speeds, I have the manual right in front of me. if you need more info get back to me and I will try to help also check the heater relay

Feb 26, 2015 | 1994 Chrysler LHS

1 Answer

Heater blower motor.,Highspeed only works..problem??


9 out of 10 times its the heater fan resistor doing this. it has wires that corresponed to diffreent speed settings for heater fan. the resistor is beside the blower motor, Your Kia Sportage Blower Motor Resistor controls the heating equipment in the vehicle by opening and closing the fan motor. The Kia Sportage Blower Motor Resistor allows the heating and climate control system to control the speed of the vehicle's cooling fan. its under the passenger side glove box. undo 2 screws and disconnect the electrical connector. thats it!!

Jan 24, 2012 | 2000 Kia Sportage

1 Answer

The heater fan on my 1993 f-350 has become really loud. I only have hi speed which I understand may be a resistor issue but how do I remove the fan and motor assembly to inspect it?


A heater blower motor resistor is an electronic device with three or more progressive resistors that allow the heater blower motor to operate at slower speeds. The highest speed of the heater blower motor is not controlled by the resistor, so when the resistor fails, the fan will often work on the highest speed setting, but not the lower speeds.
To resistor is generally located under the dashboard and under the hood, near the blower motor . The resistor's electrical connector is disconnected, the resistor is removed and the new resistor is installed. On some vehicles it may be easily accessible, and on others it may take partial dashboard removal to replace the resistor.
Look under the hood, generally the wiring for the Blower resistor is attached to the wiring to the blower motor itself
It's inboard & below the motor, near the accumulator. You can see it standing beside the passenger fender. it's the off-white connector behind the L heater hose above the vacuum reservoir & the white WARNING sticker

Feb 12, 2011 | 1993 Ford F350

1 Answer

I have 2002 infinity I35 and the blower motor stop working ,I took out the blower motor to make sure was good. YES the blower motor still working .the only think I really don't know how to check is Blower...


WELL YOU HAVE TO USE A VOLT METER CONNECT ONE VOLT METER WIRES TO GOOD GROUND AND THE OTHER VOLT METER WIRES GOES TO EACH SWITCH SPEED.IF VOLT METER GET VOLTAGE A 1 OR 2 CONTROL SPEED RESISTOR BAD.IF RESISTOR BAD YOU WILL GET 1 OR 2 BLOWER MOTOR SPEEDS.IF BLOWER MOTOR WORKING.CHECK THE AC AND HEATER CONTROL SWITCH FUSE OR CHECK BLOWER MOTOR FUSE AND RELAY.IF ALL GOOD SO FAR CONTROL SWITCH ITSELF COULD BE FAULTY.

Nov 05, 2010 | Infiniti I35 Cars & Trucks

1 Answer

I own a 2005 jeep liberty. the ac, heater fan only works on selector switch setting # 4. nay sugesstions on why fan does not work on settings 1, 2 or 3.


The lower speeds are accomplished by running the power supply through various resistors that drop the voltage which makes the blower turn at different speeds. The lowest setting uses all the resistors to drop the voltage as much as possible to turn the blower as slow as possible. High speed uses no resistors so the blower gets full power and turns as fast as possible.

Since speed 1 and speed 2 use the speed 3 resistor to drop there voltage and speed three is not working as well my guess is the speed three resistor is burnt out in the device referred to as the blower motor resistor or blower motor speed control module. This is located near the blower motor and is held in place with 2 screws. There will be several wires and possibly two connectors plugged into it.

These are really common failures in many vehicles. The parts are usually available at your local auto parts store and they are typically not that expensive.

Hope that helped.

Oct 07, 2010 | 2005 Jeep Liberty

2 Answers

I have a 1999 Jeep Wrangler and the heater fan stopped working for all the fan speeds. The fuses are fine. How do you know if it is the blower resistor or the blower motor?


If you bypass the resistor pack and connect the motor directly to the fused 12v supply then the fan should run at maximum speed. If so, it's the resistor pack that's blown: a very common fault on a huge number of makes and models.

Feb 13, 2010 | 1999 Jeep Wrangler

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