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Ok, let me check something, and I will be back.
It looks like your cluster has failed internally. This is not caused by the other work that was done, but is a coincidence. Try disconnecting the negative battery cable for 2 minutes and then reconnect it. If the problem still occurs, then have the cluster replaced.
I hope this helps, and let me know if you need further assistance with this.
no cold air blowing out when ac is on but low pressure