A short timeline is enough
Write down the first alert or temperature concern and any later changes you noticed during normal use. Include a recent move, installation or service visit if relevant. You do not need a minute-by-minute log or repeated tests.
Use the exact model's owner guidance for restart behavior. A recovery period or control sequence described for one product should not be assumed to apply to another.
Compare compartments carefully
If the fresh-food section is affected, say whether the freezer also changed. In a paired installation, the refrigerator and freezer may be separate units with separate identifiers. Keep each observation attached to the correct unit.
A light or working display is not a complete cooling test. Avoid repeatedly selecting a colder setting while waiting to see whether the original condition returns.
Prepare for service without disturbing the evidence
Leave the appliance installed and keep any existing alert available as a photo. Clear the space in front, but do not remove panels or reach behind the refrigerator. Arrange suitable alternative storage for contents when refrigeration is unreliable.
For a Murray Hill appointment, confirm the access contact and the person who can approve a repair. Call with the exact address and ask about diagnostic charges before the visit is booked.
A FEW HELPFUL ANSWERS
Before your service visit
Does a power outage mean the control board was damaged?
No. The timing provides context, but it does not identify a damaged component. The actual model and ongoing behavior need assessment.
What if the refrigerator seems normal when the technician arrives?
Keep your brief timeline and any photos of alerts. Intermittent behavior can still be discussed; do not recreate an unsafe condition to demonstrate it.