Where can I find a Love 49 temperature control wiring diagram?

It may be a sensor. Don't replace a control center unless you have determined it's bad. The sensor has to be wired to the board controller. Usually smaller cable with 2 conductors. If it has an alarm then there may g e as many as 6 or 8 or more wires going to the board. Using your wire diagram Find the sensor for temp. Sometimes the ohm value is given on the wire diagrams. You will also need the temperature at the point the sensor is connected inside. Your ohm reading should be close to the temp given in a table or from the manufacturer. If it's close sensor ok. Take next step.

Usually every 6 hours will keep the evaporator coil clear of frost. I set the time at 45 minutes per defrost. This unit has a defrost termination control that kicks it out of defrost when the coil reaches a certain temperature. The defrost timer is only a backup if the defrost control fails.

your freeze must be branden company.

The defrost termination/ fan delay control is a temperature-activated, single pole-double throw switch. ).
The control is wired into the refrigeration circuit. The control is located high on the evaporator where the frost is likely to clear last. The function of this temperature-activated switch is to terminate defrost when the evaporator coil has been defrosted, and to delay the evaporator fans from coming on immediately after defrost.
The coil must reach a temperature of 25* F. for the fan delay to close allowing the fans to operate.

does the compressor ever stop running? If not, the trouble is in the controls. If it does, the temperature sensor is probably bad. Start there and let me know if I can be of further help.

Change the temperature control.

http://www.acmehowto.com/howto/appliance/freezer/repair/tempcontrol.php

most freezers have 2 controls. 1 is a defrost terminator and the other is a fan delay. the delay and the defrost terminator can sometimes be a "2 in 1" type switch. you would have to study the wiring diagram. The delay will not let the fans come on untill the evap reaches a preset temperature. take another look at the diagram. It may be that the evap is not getting cold enough. you may have a refrigeration issue.

http://genet.geappliances.com/DocSearch/pdf/49-6545.PDF
The best I could come up with is this site for the user manual. Not able to find wiring diagram on this GE site. Hope this helps ya.

Hope this help