I bought a Hampton Bay ceiling fan connected everything as per insrtructions and it will not work I suspect the receiver not functioning properly

Have you tested for power above the fan canopy? Does the remote red light come on when you press a button? Do the dip switches in the remote and thereceiver match perfectly? Back to you

Is anything working at all? Or no fan, no light, etc?

Does the fan have pullchains? If so, wire it without the receiver and see if it works.

Some references:

Ceiling fan remote controls - help and FAQ- Ceiling Fans N More

Ceiling fan wiring - Ceiling Fans N More

General ceiling fan troubleshooting and help FAQ- Ceiling Fans N More