[ALEXtheGREAT]

1984 944, sorry for the long post.

So I've got this weird issue that I can't seem to figure out. Long story short my A/C wasn't working and I found the original A/C relay behind the glove box had failed, so I ordered a new OEM replacement from Porsche. Relay arrived and I figured I'd swap the cooling fan relay and A/C relays.

I placed the original working relay from the relay block to the A/C relay spot behind the glove box and inserted the brand new relay into position one of the fuse block. As soon as I went to insert the new relay, I heard the A/C air blower relay (position 3 on the fuse block) click and energize. Blower motor started running at its position "0" setting (as if ignition was on) and I could turn the A/C on without they key in the ignition. I was unable to get the radiator fans to stop running unless I removed the cooling fan relay completely.

I swapped both relays (brand new relay into the A/C relay position and original working relay back into its original cooling fan relay position on the fuse block). Upon inserting the original relay, I did not hear the A/C air blower relay click or energize, the blower fan no longer runs and I cannot turn the A/C on without the key in the ignition.

I figured maybe my new relay was defective so I had a new one ordered. Relay arrived and I again inserted the relay into position 1 on the relay block. As soon as I made contact with the board, the A/C air blower relay (again position 3 on the relay block) clicked and energized.

I cannot figure out why the brand new relay is causing the relay to energize and allow the blower motor and A/C to work without the key in the ignition, where the original relay isn't having these issues. Any suggestions!?