Fridgemaster MS91562FF American Fridge Freezer brand new but the fridge is 15C It needs to be lower? How do i do this?

SOURCE: Freezer and Fridge side not cooling

Sounds like your Defrost heater is burned up. It is located in the back of the freezer compartment behind the lower cover. Look at the base of the condensor. Two screws hold the heater and two wire connectors. The heater is in a glass tube. Measure continuity from one end to the other, you should see a few ohms. if it is open, your heater is definitely burned. I got a good deal on a replacement heater on Ebay. I think it was $17 including shipping. The heater being bad will cause major frost buildup in the back of the freezer and stop the Ice maker from working and damage food. Be sure to thorougly dry the freezer compartment prior to putting it back in operation. If too much moisture is present, the new heater will evaporate the moisture into the Ice dispensoer motor and solenoid that swtiches from crushed to solid ice. Hope this helps. it has nothing to do with your problem, but please Check out my website www.playstationclinic.com

SOURCE: SAMSUNG AMERICAN STYLE FRIDGE FREEZER MODEL RS21DCNS

Sounds like u need to replace fan motor

Check fan motor for continity IF none replace fan motor

SOURCE: Freezer is staying cold (below 0), but Fridge won't cool

Failure to stay cold

SOURCE: No light in fridge compartment, Not freezing. Light in freezer co

Your door switch is bad.  When doors are opened, the fan stops.  No cooling.  When it closes, fan starts.  Bulb is just an indicator of no power to unit...probably burned out contact in switch.

SOURCE: fridge quit cooling after i moved it

did you tilt it when you moved it and then when u got it in place plug it in? if so youve got compressor problems, anytime you tilt a fridge you have to let it set for several hours to allow the oil to get back to the compressor or you ruin the compressor