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Hi, I'm Mike G and I'll be assisting you. Are there pullchain switches on the fan?
Turn off the main breaker, open the canopy and disconnect the black wire. That will stop the fan. Reset your main to restore power to the house. Check the fan body for dip switches. When found verify the dip switches in the remote are set the same. After all that, let me know what happened.
From your description of the results I would think the receiver has failed and should be replaced. They are available at the link below or a replacement of the fan may be around the same costs.