I have a Rf263beaesr/aa ver.5. It was very noisy for past 6 months and also the temperature on the screen would start to blink (like flashing 40 or sometimes 44), i have to turn it off to reset this flashing. Also, when its flashing all the stuff inside has frozen. I have replaced the fan and the temperature sensor cable so theres no noise anymore but its still freezing up in the refrigerator.

SOURCE: FREEZER SOUNDS VERY NOISY

that because the internal fan is hiting the ice or has bad bushings you can hear the noise just with the door close because when you open the door there is a switch the one turns off the internal fan so when you close the door it turn on the fan again if you wants to hear that with the door open just open the door and push the botton swich with your fingers and you'll hear the noise

SOURCE: I need to bypass a filter in RS267LASH Samsung refrigerator

From the Samsung Online FAQ for my RF266AASH

Can I Use the Water Dispenser Without a Water Filter? The water and ice dispensers will work without an AquaPure water filter installed. The water filter housings are designed as rotary valves that allow the water to bypass the water filter whenever there is no filter or the filter is not in the lock position.
Models designed for use with the AquaPure water filter are shipped with a cap in place to cover the opening and keep it free of debris prior to the installation of the water filter. It is not necessary to have this cap in place for the unit to bypass the water nor is it intended to plug the housing to prevent leaks.
Note: This does not apply to the Quatro Convertible models. The filter must be installed on this model.

SOURCE: flashing red light

I think this sounds like my problem (need to replace the projector lamp). However, when I hit the "on" button, my SXRD 50" blinks green for about a minute then starts blinking red. Can you confirm the bulb solution? I was very pleased with this sight when my fan malfunctioned. I got the fan in a matter of day's from Sony and it fixed that problem.

SOURCE: Samsung SR S2028CSS Fridge Freezer - Fridge temperature problems

Try setting it to lower temperature. If that don't work the thermostat is bad.

SOURCE: Mini Cooper temperature gauge goes to red zone, fan comes on

If you have a new thermostat, then your temp sensor is faulty. If sensor is new, then it is the wiring to sensor or problem with the ECM

Testimonial: "Thanks for the prompt answer -- what is and ECM?"