Debug norlake pressure - Nor-Lake Freezers

The pressure control will be fed a live from the thermostat and feed a live to the compressor relay

if the temp is 10f compressor is fine, just need a tune up, call a specialist.

Hi John,

The symptoms do indicate a failed thermostat.

I am not sure where you could get a thermostat for this freezer but I would try contacting Norlake first. They may guide you to who has one or maybe they can sell you one. If it is a direct replacement it is something that you can do yourself.

http://www.norlake.com/

Normally freezers are kept at zero. Most health departments will not allow the temp to be higher than plus 10. If you want to store ice cream, you need to be at minus 10 degrees to minus 15 degrees.

let me know if I can be of any further help.

I've worked on freezers for over 20 years and have never heard of a compressor going bad because the door was left open. think about a second opinion.
Also, has the cooling coil inside the box developed and frost or ice build up? If so, it needs to be completely defrosted. If you defrost it manually, use a hose hooked up to hot water. Kill all power and hose all build up off. Remove the sheet metal housing ends and be sure there is no ice inside there too. I would go in this direction first.
IN order to kill a compressor under this condition, something really strange must have happened as anything is possible in a refrigeration system. Good luck and hope this helps.

Compressor 12/3 with 20 amp dual pole breaker. 220 VAC

Freezer 12/3 with 20 amp single pole breaker 120 VAC

I assume there is no manual control for setting temp. so the thermal sensor or control circuit has failed and it is just staying at its maximum.  You will probably get more help from the manufacturer but their website is somewhat disjointed; looking for contact info for your product ends at one point and then shifts to their scientific product line.
The only general contact info I found is here:
Nor-Lake 
You will in any case need to have the correct model number at hand since the subject line doesn't sound like your freezer. 

Check the evaporator coil for frost buildup on the back. Check for frost on the suction line, the biggest line returning to the compressor. If frost is evident at these places you have a defrost system problem. These systems have a defrost timer that defrosts the coil at preset times. Check the timer for proper operation by marking the position of the dial and check back to see if it changes. If it does not change position the timer motor is most likely bad. If the dial is not rotating automatically you can manually turn the dial in the direction of the arrow and put it through a defrost cycle.

They are usually mounted on the front panel of the evaporator or mounted on the wall behind the evaporator.There is a possibility that the temp. control is at the condenser,and the sensing bulb was slipped thru the wall.Look for the bulb at the back of the evaporator and follow the cap tube.

Yes if the evaporator drain is blocked or not attached correctly it causes the humidity to remain in the refridgerator. Just opening the door will cause the warm are to enter and cause the symtoms of rain if the water is not taken out the drain properly.Hope this helps JT