Saab Fan Resistor Test

- November 10, 2018

Speed control the air is equal from any level. I have a 2003 saab 93 and the blower motor is not working.

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The fan can be tested with the engine on or off but preferrably off by removing first the fan low relay and putting a test lead or a heavy wire jumper between relay socket contacts 30 and 87.

Saab fan resistor test. In high speed the resistor is bypassed and power is fed to the motor directly from the switch. Cabin fan on hot days. I went to get a resistor and the was told that this car does not have a blower motor resistor.

The fan was always on. High blower speed has direct power to the motor from the switch. The blower motor was on high speed in this car constantly.

An ac blower motor resistor uses resistance to control the speed of the blower motor. Old top gear series 39 episode 5 saab 95 test etc late 1997. Then one day it worked for about 5 minutes then quit.

Heater core removal 5045836 ventilation filter replacement 12758727. One auto 46263 views. Cabin fan motor replacement.

If the resistor shorts or fails it may cause the blower motor to remain stuck on one fan speed. Test for power at all the blower speeds by moving the blower speed switch through all positions. A heavier than normal wire or test lead is required due to the large fan current.

Theres air but like a level 2 on the dial. They said it had to be one of two modules that are bad. This is a 2004 saab 93 linear.

Cabin fan replacement saab 95. Even when the key was off. 2006 saab 9 5 aero blower motor problem with 57890 miles.

A faulty resistor loses power at different positions on the switch. How to replace a blower motor resistor on saab 9 3. I diagnose the problem of a heater ac blower motor that works on start up and then on and off while driving.

I was told that it could be the resistor on the blower motor. Many blower resistors control current to the blower motor in all speeds except high. The cause was the resistor or ac control unit as.

Blower motor resistor testing. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting.

Saab 9 3 hvac blower fan motor not.