Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Rebuilding, rebuilding, rebuilding............

Lots of hard wires, ...

Tags: a/c, a/c climate control unit, air con, ccu, climate control unit

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A/C CCU Board Service

Another owner sent in the CCU board for service.

I was informed that the board lost its power and
nothing showed up on the CCU display.
There was no air coming out and just nothing, it's dead.......


So, opened the package and immediately I noticed the strange smell.
It was the same sort of smell when the Bose speaker AMP got burnt
behind one of its four FETs.

I never experienced this smell with ...

Tags: a/c, a/c climate control unit, air con, ccu, climate control unit

Categories

A/C CCU Board Service

The acid managed to penetrate through the board quite deep and
part of the pad in this area was completely dissolved so
I had to use different method to re-create and strengthen the
missing copper pad.






...

Tags: a/c, air con, ccu, climate control unit

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A/C CCU Board Service

I have been focusing on writing lots and lots of documents and
in the back ground,
I started working on another CCU board.
The owner contacted me as he lost several controls through his CCU.

He had a quick look at the board and confirmed that there was just
a small leakage at C44 and told me that the rest of the board looked fine.



Well, I heard the same story more than 100 times so
when I received ...

Tags: a/c, air con, ccu, climate control unit

Categories

A/C CCU Board Service

I have now covered more than 100miles using my NSX with
the board that I serviced in 2009.
It’s been tested for many days now with no issues and
it passed the testing scenarios many times so I came to
a conclusion that there is nothing wrong with it.

The fan always stops whenever the ‘OFF’ button is pressed so
the reported issue is outside of CCU.





The other board that was repaired by someone ...

Tags: a/c, air con, ccu, climate control unit

Categories

A/C CCU Board Service