Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
Hello! My name is Gary.Welcome to JustAnswer.I'm reviewing your question now, and will post back with a reply shortly.
How long have you owned this car?
Do you know when the pollen filter was replaced last?
Does the fan appear to have all speeds, just no airflow?
I have seen excessively blocked pollen filters or evaporator cores cause this.
This might help you:
I would pull the fan motor out to see if a piece of paper is caught inside the fan.
If that is normal, then there might be foreign buildup on the fan side of the evaporator core.
This might help:
While the fan is out, look into the case at the evaporator for a dirty core.
Ok, now we need out whether it is the fan motor or the hvac module or a wiring fault.
Does the fan motor turn easily? Will it spin if you help it with the engine running?
Does your car have climate control?
Yes, you have climate control.
The plug can get stuck on the terminals from heat etc.
Did that link I attached help you for removal?
Do you have a testlamp?
Have you checked the fan fuse?
check fuse f26 under bonnet - disconnect fan motor plug and check for power and earth (ignition and fan turned on) - if both present try reconnect fan and tap motor lightly -if earth not present may have faulty HIM - check connection into HIM module - scan for codes -
if no power check connections back to fuse f26.
Ok, sounds like the power side will be fine.
Sounds like a fan motor open circuit or the blower module.
With your testlamp connected in place of the blower fan motor, the lamp should get progressively brighter as you increase fan speed.
One wire is 12v, one wire is a switched pwm ground from the module.
Do you need any further help?
I hope my advice has been of assistance to you.
If you are keen, I would try the blower fan motor across a battery.
You know your power wire, so you should be able to work out which terminal is 12v positive and which is ground.
If the blower fan works across a battery, it is ok.
Then the module would be the next likely cause.
Let's hope the fan doesn't operate across a battery as a test.