Has anyone had a go at fixing a Comfort Unit

A

A2B

A2OC Donor
Hi All,

I was wondering if anyone has actually tried to fix a CCU.

The ticking noise seems to be coming from 1 or more of the 4 TYCO relays on the board.

It would seem likely that replacing these, which don't cost much, may well solve the issue.

Anyone tried it?

Paul.
 
I don't think it's the relay, I suspect a transistor is blown (can't run a relay coil directly off an Atmel, therefore Transistor in the path and it dies as it's not reliable enough....)

Lau is the man to talk to.

Bret
 
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