Haier Model HNSB02, Serial # 1005006483--Not keeping within 36-46 degree temp inside. Adjusted dial on rear of model-is higher number colder temp?

More than likely, the thermostat on the unit is going bad. If the coils haven't been cleaned recently, then I suggest that you unplug the unit, clean it well and then cycle it back on. If it continues, then the thermostat that's located within the unit is going bad. Please refer to the owners manual for proper service and maintenance for your unit. https://www.appliancefactoryparts.com/content/pdfs/140265-1.pdf

The higher the number the colder the temp is supposed to be.

In order to prevent the formation of bacteria and other such organisms to affect food the way it does, the ideal temperature range of refrigerators has been mentioned here. Before we look at these settings, it is important to know the format in which temperatures are represented within a refrigerator. Commonly, you will notice a dial representing the figures 1-5 or 1-9 in the refrigerator, and a dial representing the letters A-E in the freezer. The ideal setting is usually in the middle of such figures.

If the dial is in such a format in your refrigerator, try a setting at 3 if the range is 1-5, and at 4 if the range is 1-9. For the freezer, a setting at C is suitable.

The ideal temperature in the refrigerator ranges between 34 degrees F - 38 degrees F or 1 degrees C - 3 degrees C. So that foods such as vegetables and fruits remain fresh and crisp, the temperature may be set around 38 degrees F or 3 degrees C.
The ideal temperature in the freezer ranges around 0 degrees F (-18 degrees C) or lower.
Read more at Buzzle: http://www.buzzle.com/articles/refrigerator-temperature-settings.html

NOTE: This
is a multi-solution answer since I don't have all the tech from your question to pinpoint your problem
But the solution is in here generically, if you read and study the solutions very,very carefully.
First I would check cold control. Thats where you turn it off, if your temp is not warm. it can
be defective and not shutting off. If your temp is warm proceed with the following.
I would check the fan in the freezer. Listen to see if it is running
It moves air to the ref from the freezer
Then check to see if FREEZER CONTROL is turned WARMER WHICH MAKES THE REF COLDER AND VICE-VERSA. SEE?
The ref. temp should be about 33-35
The Freezer temp should be 0 to 10 Any thing below these temps is overkill and a waste of elect
The higher the number you turn it up to is the coldest
But is probably a common defrost problem The ice build up
is not being melted by the defrost system.The fan can't blow through the coils into the fridge.
Take out back panel of freezer to check for ice buildup. The coils should be clean.
There are three components to a defrost system- a heater,heater thermostat, and a timer unless you have a defrost electronic card.
Its best handled by a Technician but you could possibly do it by taking your model number to the nearest appliance parts store and asking for the parts. They are mostly located in freezer ,behind back panel on freezer coils.except the card which is usually located in ref The parts store will have info
Also check fan undernearh Ref in the rear
Clean condenser coils underneath
Make sure back cover is on the fridge. Some take them off and throw them away.
make one out of cardboard if its gone, using the holes of the old one.
.I'm including my article on Refrigerator Repair for your help and convenience.;
Please click or copy and paste into browser for Article

http://www.fixya.com/support/r5816737-fix_refrigerator_psychologically
If you need more help go here:

http://www.applianceaid.com/procedures.html

MORE TIPS AND TRICKS:
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STOP PAYING FOR EXPENSIVE WATER FILTERS FOR YOUR REF. DO THIS====
http://www.fixya.com/support/r9962087-stop_paying_high_price_refrigerator
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WATER SPLASHING IN FREEZER AT ICEMAKER
THE FILL TUBE IN BACK OF REFRIGERATOR CAN SLIP
AGAINST THE FILL RESERVOIR CAUSING A PARTIAL BLOCKAGE
OR BECOME CLOGGED WITH ICE.
REMOVE THE ICEMAKER AND INSPECT THE FILL TUBE.
RUN WATER IN TUBE TO ELININATE BLOCKAGE AND CHECK
TEMP IN FREEZER. IF TEMP IS BELOW 0 DEGREES, THATS
OVERKILL AND USUALLY A WASTE OF ELECTRICITY TO KEEP IT THAT COLD, NOT TO MENTION THE FILL TUBE FREEZING UP
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Leo Ponder
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turn it higher. if that does not work you need a new thermstat you fridge should be 6 degrees to keep food at a safe tempture hope this helps roxyblue57

The dial inside the fresh food compartment, the bottom compartment
set to middle or above (higher numbers mean colder). Usually 5 to 9 if it has numbers.

Freezer knob in the middle if it has one. (If you set a freezer knob to "colder" it cuts
off the cold air to the lower compartment). Hope this helps

Set dial to higher number in the fresh food compartment (large door) set the freezer
knob on the vent stack in the center or to the left (if it is set to colder, this prevents cold
air from getting into the lower fresh food compartment). Colder means the freezer
gets colder.
Also if you have a failed defrost termination thermostat it will cause this
symptom on many models. (a lot of folks will disagree but I have only seen a couple
of defrost timers fail in 10 years). The water makes its way into the defrost termination
thermostat and corrodes the contacts inside. It is behind the freezer panel and has two
wires going to it. It is clipped onto a tube. You will need the model and serial from inside
the fresh food door (on the side panel) to get a new one, usually less than 20 dollars.
Remember to set the fresh food compartment temp from 34 to 39 degrees with a
thermometer in a cup of water for 24 hours. Don't forget to unplug unit if service is
required on the thermostat. Hope this helps.

To raise the temperature of the refrigerator you set it to a higher number.

Hi!!

The higher the number, the colder the setting.

Rate this post, Good Day!!

The higher the number (0-6) the colder the box. Hope this helps

have you tried testing the plug. Has the fuse blown in it? try changing the plug to see, then if this doesn't work try a different power outlet.