Some noises the refrigerator makes are normal and can be minimized by properly leveling the refrigerator or making other minor adjustments; others may indicate a need for service. The "chirping" noise may actually be the door open alarm, which can sound with the door closed if the wiring harness is not properly connected, though I haven't heard of it sounding with the refrigerator unplugged. I would suggest you visit the Troubleshooting Guide through the link below, then select "Troubleshooting ► Noise/Vibration ► Unusual Noises ► > Beeping": http://support-us.samsung.com/cyber...
If the suggestions and explanations do not resolve your concern, please contact 800-SAMSUNG to speak with an agent who will be happy to assist you further.
answered 3 years, 1 month ago