Stuck on heating

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The blower fan on my 92 Legend took a crap on me. Since I had gone thru the same thing before, I got a new blower motor from the dealer. I installed it the other night, and it blows really good and strong. But now the system is stuck in the heating position, and the AC compressor is not coming on. It's blowing really hot air. I checked the coolant bypass valve, and it was on to full heat. I manually moved it to cold, but the AC compressor still stays off. The actuator wire to the coolant bypass valve stays on the "heat" position. Any ideas how to troubleshoot this problem? Any help would be appreciated.