TRAULSEN URS 48 DT - Refrigerators

https://www.traulsen.com/service/service-parts-manuals
since your question is non specific to a certain model, try their web site and see if you can find what you need.

Your defrost circuit ... should (about twice each day) gently warm up.. and remove the frost to an evaporation tray at the bottom of your FREEZER (refrigerator?)...

Regardless of the design...

THERE are only two reasons for excessive FROST.

- massive air intrusion (check seals & gaskets)
- defective defrost circuit (check defrost timer/controller)...

EZ trouble to fix...

Post comment reply: 7/3/2016...

In general... there are only three elements to the defrost circuit:
- 1st failure is usually the "timer" (in your case (other cases it is being replaced by the power control board (do remove power: line voltages present).
- 2nd failure (inside ... usually atop the evaporator) is the "DEFROST THERMOSTAT" (designed the keep the heating element from getting much hotter than 55 degrees Fahrenheit, ("failing" = open.. prevents the heater element from being energized at all).
- 3rd the heating element... itself goes open (usually below the evaporator (caution: line voltages on 2nd & 3rd)).

Anytime you don't feel you've got this surrounded just comment me back... I'll be around.

Go to Bing homepage

http://www.bing.com/search?q=traulsen+freezer+wiring+diagrams&qs=AS&pq=traulsen+freezer&sk=LS1AS5&sc=8-16&sp=7&cvid=47349AEC29CA4E1D8902F3954D86C0BF&FORM=QBRE&ghc=1

https://feg.hobartcorp.com/resourcecenter/ProductDocumentation/TR35749%20Rev%200503.PDF

Only manual found is the UR48DT. Try to access this site for the manual. If you can not, let me know and I will try to email it to you.

You can use R134a compressors with the Poly oil in them and use R12 or R134a (flush the remaining old mineral oil out of the system first). Match your BTU requirements.

Hello, here is a link to a website where you can obtain a manual and user guide: http://www.retrevo.com/support/Traulsen-G30010-Refrigerators-manual/id/6705bh151/t/2/n Good luck! Mike

may be you have problem with the Evaporator fan motor not running, defrost heater, defrost timer, open gap on door gasket and bad thermostat (cold control), it may kept the compressor constantly running. Good luck.

You can go to traulsen.com and download the owners manual for your model and serial number. I did and it was VERY helpful to me. Let me know.

I'm not intently familiar with this particular brand, but here's some ideas to check. If the thermostat sticks on, the freezer coils can freeze, blocking air flow and jamming circulation fan. This will cause the temp in freezer compartment to rise. When the ice on the coils thaw, the compartment starts to cool again, but the cycle will continue. Another thought is if this unit has a defrost timer that could be defective. Without seeing the unit, it's hard to determine the exact cause.
Hope this helps.

Hello Rob,

I called Traulsen with your model and serial # and was able to ID the manufacture date, Oct 4, 1989.

We specialize in cooler/freezer gaskets. We also sell refrigeration hardware & accessories. We can get many Traulsen OEM parts below list price. We'd be happy to help you locate the parts you need.

Shoot us an email to [email protected] or call toll free at 855-288-2259

Thanks,
Matt
Coolergaskets.com

The first place to look is to check the charge. Using guages check the low and high side pressures and their relationship to one another. I'm assuming your unit is a R-404 unit which, if fully charged and the condenser is clean, and the fan is operating, should have about 210 to 250 high side pressure. Other things to check: evaporator coil ice/frost free; defrosting properly to obtain a clean coil; all evaporator fans running. If low side pressure is above 30 PSI you have a weak compressor. Whatever, fix the Traulsen unit, its head and shoulders above anything else on the market today.