I have a True GDM 33 model is it possible tochange the temperatur

True GDM-12 Refrigerator... Repair Questions - Fixya

www.fixya.com/support/p22955-true_gdm_12_refrigerator_commercial
Recent True GDM-12 Refrigerator Commercial questions, problems & answers. ...Where is the temp control on the older (14 yrs or so) on GMD-12? True ..

40 degree is a perfect temperature for produce if its lower that stuff will turn brown. Maybe you thermometer has failed. Go to the food store and get a red stick and put it in there. Then adjust with that temperature indication. Hope this helps and good luck.

It could possibly be an issue with the thermostat not shutting off. I would set it at it's setting to see if it shuts off. If not replace the thermostat. Also check to see if the evaporator fans are running.

Change the temperature control.
http://www.acmehowto.com/howto/appliance/refrigerator/repair/tempcontrol.php

you should check the condensor first make sure it is not dirty. Inside and outside fan works.

What is your question?

Try cleaning the condenser coil.

possible bad defrost timer,or control on an off is bad,were you adjust temperature...thermostat from 30 to 65.00 dollars....possible there is leak or unit is under or overcharged..more than likely under charged...possible defrost heater is not working...good luck..michael doctor airr appl.repair..service tech..843-384-8474...call if need additional help ..its free..

Install a constant cut-in thermostat. Constant cut-in temp of 37 degrees coil temp.