CNNS228K Norge Refrigerator

This is a problem in the defrost cycle. It is one of three items the heater, timer or thermostat.. I removed the screws from the back side of the freezer and romoved the sheet metal from the back which exposes all the elements. Below the evaporaro coils are two small plates which cover the heating elements ( two glass tubes conected to in ... Read more sulated wire), You may be able to look at it and tell if they are bad. Mine was burnt and obviously gone. If you disconnect from conectors you can check for conitinuity to tell if bad. Simply remove the four screws holding these in place and install new one the same way. quite easy. I did check the thermostat for continuity and relaced it also. It simply plugs into a clip on the back wall and two power connectors. If checking themostat for continuity make sure it is cold otherwise it will be open and you won't get a good read. The timer for this model is under \neather behind the grill on the bottom. simply turn the dial and if the motor stops it is probbably good. It runs 8 hr. and then will shut off for defrost heater to come on. Do this before closing up to tell that your new heater is working. It will get red quickly. Saved a lot of money on this one

unplug refrigerator. remove contents from freezer. remove shelves, trays, icebucket, light cover & bulb. defrost back panel w/hair dryer. remove screws from: ice dispenser motor housing, back cover. remove back cover. defrost evaporator w/hair dryer. remove heater leads from connector on feedthru. remove heater mounting screws. pull leads ... Read more down thru evaporator while removing heaters. install new heaters on mounting plates. feed leads up thru evaporator. connect to feedthru. install everything else.

part was exact fit. same resistance as on schematic, leads were long enough. no problems encountered.

Tips from internet forums helped me figure out the problem: The defroster heaters were not working and the freezer side would frost up and prevent cold air from entering the refrigerator side. I removed the drawers, drawer slides, ice maker, then the back panel to expose the cooling coils. You can check the heaters for continuity before r ... Read more empving them by disconnecting the two lead wiresonce you have the back panel removed. Not getting any continuity, I removed the old heaters after defrosting the coils. Removing the heaters was the most difficult part as they are a little "long" for where they fit, but with care it can be done, the same applies to installing the new heaters. I had to cut the connecting wire on one of the heaters to remove it, but got the new set installed OK. Works fine now, the bottom heater was defective, and since the are wired in series neither one will work independently. Everything works fine now, problem solved.