20 Most Recent True 72 cu. ft. / 2039 liter Commercial Freezer T-72F Questions & Answers

I need A wire diagram for a freezer mo.49f

P1 is almost always a fault on the sensing (control) probe. Check it's end is not wet or covered in thick ice, and check the connections at the controller. If you can, change the probe connections on the controller temporarily. If P2 then shows it proves the probe is faulty. If P1 still shows, it proves the controller is at fault.

sounds like you are getting low on freon do you have freon gaddges to check it if not i can rent you some useing paypal

Is it the defrost heater element? There are several possibilities. Check defrost timer operation and output, check overheat limit klixon (attached to evaporator), check heater continuity.

Go to www.truemfg.com and it will take you to their web site. They have a 24 hour, ask a tech a question. I could not find any wiring diagram on your particular unit but maybe they can help you via their tech hot line.

Good luck and hope this helps.

Hello, their are heat coils in the doors, their maybe a issue with the door heat circuit controls.

FIXING COMMERCIAL TRUE AIR FREEZER

Head pressure should be around 250#.
Be sure condenser is clean. Use a good foaming cleaner.

Commercial refrigerator parts supplier can make it same day. Check google for your nearest supplier.

Would take more time and money than buying a T-72F freezer.

right side of the evap. coil housing inside.

You have done good work here young man. There is a relay or switch that is keeping the signal for being processed. I had the same similar problem with mine. At least your compressor is ok. Are you sure timer is wired back right.

Here is a PDF of Techinical information for all models of the True T-72F I will be here later should you have questions, Thanks Sea Breeze

Check the defrost timer (in the base, circular knob you can turn till it clicks) If it doesn't heat up rapidly in the evaporator, there is a safety overheat device (thermistor) that may be cutting power to the heater, or there may be a fault with the heater itself. Are you sure the fans are working, and the condenser grill is nice and clean?

If it's mounted inside a box along with the capacitors there is 1 screw holding it from the back. Often you have to unmount the box from the compressor to access the screw.

evap fans will run continuiously on this unit,it is normal. fans stay on to circuilate air evenly inside unit.