I was off opening presents. The ECC unit just "pops" out after you remove the radio. Don't bother unplugging the radio.
The cabin temp sensor also just pushes out from behind. I found that using a vacuum cleaner with the crevase cleaner will draw a lot of dust out of the unit.
My V70 just gave me the blinking lights the other day, so I turned the fan from auto to medium speed. Then I turned the dial to every picture symbol, letting it sit for a minute to let the vent motors work and position themselves. I also hit the recirculate button to activate that vent. Then I put the fan back on auto, turned the car off, restarted, and all was well.
Klaus
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1975 164 w/174,800mi (Sold) 1995 850T w/91,000mi, 1998 V70R w/129,000mi
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