Having problems with the CCU and blower fan. Works fine on defrost mode. In other modes it works intermittently. I put a meter on the leads to the fan and when it quits no voltage to fan, main air door closes, air recirc door closes and there is an audible click sound like from a relay or something. Basically it appears like the unit has completely shut down as if the stop button has been pushed. It will cycle on and off like this while in the a/c or e/c mode. In a/c mode though the compressor remains engaged even when the unit shuts down.

I've read through the archives but am unclear about where the various relays and switches are located. Thanks for the help!

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