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Old 10-21-2016, 09:57 AM   #1
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As a note the AC snow flake will not light if the motor is not running.

After removing the blower found a rusted broken spring that pulls the + brush against the armature.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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Old 10-21-2016, 02:06 PM   #2
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A new blower motor installed and Mine is fixed. Napa 6552715. it was $103.20 after buying a Napa shopping bag promotion that gave 20% off the entire purchase.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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Old 07-15-2018, 06:47 AM   #3
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Help!

Reviving the this thread as it most closely describes what I am experiencing. A/C was blowing warm so I had my local Independent correctly evacuate and recharge the system. Worked perfect and blew ICE cold. 2 days later I hop in the car and the display works but no fan and no snowflake. I’m mechanically ok to wrench on things but electronics are my kryptonite. Diagnosing this on about a 5th grade level. Hopefully you guys can help. Checked the fuse(s)? The diagram showed 2? Either way fuses are fine. Reading up on relays now...
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Old 07-15-2018, 07:17 AM   #4
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So happy

Switched out the engine fan relay with the a/c relay AND IT WORKED!!!! So happy right now.
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Old 07-15-2018, 01:22 PM   #5
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Quote:
Originally Posted by Tomikaze View Post
Switched out the engine fan relay with the a/c relay AND IT WORKED!!!! So happy right now.
Good thinking...and something I wouldn't have thought of until I was about 8 hours into stabbing around with my multimeter.
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Old 09-29-2018, 04:37 PM   #6
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Help with diagnosis, please....

I've got the same issue where the blower fan doesn't work. I tested the fuses and swapped the relays. No difference.

I got to the fan and tested the voltage on the 2 leads to the fan = 12V. So the fan has to be toast right? So I install a new cheap fan and it doesn't work either. I confirm 12V.

I did a few more measurements. I get 12V at the 2 terminals and a 1000-ohm resistance. I've got no idea about the resistor value. 1K-ohm seems like it's likely in there to prevent the fan from going.

Logic says the new fan is bad too. I don't have a 12V power supply to test the old one. Can there there be something else wrong. Is this too much resistance. The fan should be getting 0.012Amps. Not enough?

Thanks.
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