How do you adjust temps (Traulsen URS 48 DT)?

the pump unit is burn
or you have a leakage on the cooling fluid !!
all your dealer and ask the sometime the answer those question with no charge $$ !

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.

NO but you can change the temp sensor(switch)for one that operates at the temps you want.....(or get the neighbors to buy in bulk and use your freezer.....)

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.

The fridge is twenty eight years old and not worth putting another dime into it. A fridge that old will just keep dimeing you to *****.

https://feg.hobartcorp.com/resourcecenter/ProductDocumentation/TR35749%20Rev%200503.PDF
try this web site. I found your manual here. has instructions.
Let me know I can help further.

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.

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.