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What would cause the blower motor resistor to keep shorting out on your 93 astro van don't have your low and medium speeds only have the last two replaced the switch and it test good still?
Wiki User
∙ 17y ago
u need a new blower motor
Wiki User
∙ 17y ago
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What is a heater blower resistor?
Heater blower resistor is what controls the low medium high speeds...
Why does the heat blower only work on low and medium but not on high?
the blower resistor controls the fan speeds
96 Ford Contour blows cold air only Car blew hot air on high only then the blower went I replaced the blower motor and resistor Now the blower works on low and medium only but no hot air cold only?
Figured it out...the blend door actuator was not fully seated when I replaced it.
Why does ac blower only work on hi and not on low or medium on 2003 chevy silverado?
Most likely the Blower Motor Resistor.
Why does your blower fan only work on medium speed on your 1972 Chevrolet Blazer?
Blower motor speed resistor is partially burned out.
Have 12 volts at the blower connector and when you connect 12 volts to the terminals of the blower motor it runs When you plug the blower connector onto terminals of the blower the fan does not run?
If you have 12 volts at the blower, And the blower runs when it is straight wired. The blower switch runs through a resistor that allows the blower to run in low, medium-low, medium-high. Find and check this resistor. Most of the time it is located on the passenger side of the firewall.
Why does the front blower only work on high setting but not low or medium on 2002 Chrysler Town and Country?
When the fan is on high it does not run through the blower motor resistor. The low speeds don't work because the blower motor resistor is bad.
Why does fan not work on low and medium setting but does on high?
That is a typical sign that the blower resistor has gone faulty
Acura Legend blower motor resistor?
The blower motor resister for an Acura Legend drops the voltage to the blower motor. This is what allows the motor to run slower for the medium and low settings.
How do you fix No low and medium blower speed when high speed blower works fine on a 1987 Corvette?
More than likely the blower resistor is bad....I recently ran into this problem in my 91 Vette...Hope this helps!
How do you fix a 1997 ranger fan motor with no low or medium fan speed?
propably need to replace the blower control switch/resistor
2001 buick century blower fan stopped working have checked fuses they are okay?
If the low and medium speeds of your fan are not working and only the high speed is working, then it is probably the resistor fan control module. This unit will have to be replaced. It is generally located underneath the dashboard on the passenger side. Locate the blower motor and trace back the two power leads from the blower motor. They will terminate at the resistor module. The resistor module is a series of resistors that controls the amount of current flowing into the fan motor. On low speed settings, the current flows though all the resistors and as you increase the fan speed, resistors are switched out until eventually at the highest setting the complete resistor network is switched out. That is why you end up with only high blower fan speeds when the resistor module becomes defective.
