Tip & How-To about Chevrolet C1500

Blower motor problems

If ,and when,your blower motor has problems,and it will not blow on the low speeds, consider the blower resister,it is what controls the speeds for your blower motor.Now,replacing the blower resister is the thing to do,but two things to check for also,,the connector to the blower resister,and to the back of the fan select switch,the one you control,on the dash.These connectors,including the fan switch can be burned,and need replacing also.Now the reason these go out,and burn,and melt the connectors,is,that the blower motor is pulling too many amps,even though the blower motor runs great,and sounds good,trust me,the blower motor is the reason,so replace all of these parts when you replace the resister.If the connectors are fine,and the blower switch is fine,of course they will not need to be replaced,but the blower motor is a must,or you just might have to do it all over again in a few months,along with the switch,and connectors I mentioned.

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2005 kia spectra blower only blows 1 & 4 speeds


Could be the blower motor resister,it's located by blower motor,2 screws hold it on,easy to remove,click here to see part.

Dec 30, 2012 | 2005 Kia Spectra

2 Answers

a t600 kenworth 2000 model the blower motor only blows on high is it the resister


Yes - you diagnosed the problem yourself. The classic symptom of a heater that only blows on the "High" setting is a burned out/damaged or otherwise inoperative blower resistor.
Replacing the resistor should return the two missing blower fan speeds.

Dec 05, 2011 | Cars & Trucks

2 Answers

Heater bower won't blow


There is a blower motor relay,near the motor i think,check it.

Apr 12, 2010 | 1998 Ford Contour

1 Answer

Blower motor doesn't blow anymore, This blows


If it blows only on high speed, it is the resister.
If it does not work at all, check fuses first. See owner manual for location.
Then check blower motor by jumping 12 volts from battery to blower motor. Make sure ground is jumped too.

If it works now, it's the control panel. If not, it is the motor.

Blower Motor —Front Removal and Installation
  1. Prepare the vehicle for blower motor (19805) removal.
    1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414-01 .
    1. Remove the air cleaner assembly. For additional information, refer to Section 303-12 .
  1. Detach the speed control servo.
    1. Disconnect the electrical connector.
    1. Remove the bolt.
    1. Position the speed control servo aside.
  1. Position the coolant expansion tank/windshield washer reservoir aside.
    1. Remove the screws and the nuts.
    1. Position the coolant expansion tank/windshield washer reservoir aside.
  1. Remove the blower motor.
    1. Disconnect the vent hose.
    1. Disconnect the electrical connector.
    1. Remove the four screws.
    1. Remove the blower motor.
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Also,

Heater Blower Motor Switch Resistor(s)
The front heater blower motor switch resistor has the following features:
  • The assembly is located in the engine compartment on the evaporator housing (19850) next to the blower motor assembly (19805).
  • Three resistor elements are mounted on the resistor board to provide four blower motor speeds.
  • Depending on the heater blower motor switch position, series resistance is added or bypassed in the A/C blower motor circuit to decrease or increase A/C blower motor speed.
  • An overheating device (thermal limiter) will open the resistor coil circuit when the temperature reaches 121°C (250°F), interrupting the blower motor operation in all speeds except high.
  • The thermal limiter cannot be reset and is not serviceable.

Aug 10, 2009 | 2001 Ford Explorer Sport

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