Delfield Refrigerators - Recent Questions, Troubleshooting & Support

try disconnecting thermistor and let run if ok replace it if not possible bad cooling unit

Your best bet is to order an OEM capillary tube and replace it. Of course this requires recovering the refrigerant. The likelihood of unplugging one is very very slim unless it is a very large bore tube.

step 1: check the freon level via pressures or weighing in the correct amount.

Any problem with it?

Hi, Sounds like you have an air leak in the fuel system, the easy way to find where the air leak is to whilst engine running try using washing up liquid around inlets & outlets if it bubbles then you found the leak probably on the intake side more than anything. Please leave me feed back: Malcolm Campbell, Thanks.

DEF means that the unit has gone into defrost automatically. When it does that the internal temperature will climb normally to a preset temperature set by the manufacturer.to deice the evaporator coil. When it says HI 66 the control board has a high temperature alarm which in this case it exceeded it and is telling you so. At this point I would say keep an eye on it, should you continue to have any problems then I would call a qualified service technician.

I've used a piece of wire and hot water

You most likely have a shorted refrigerant pump module.

the model says that this is a cooler/freezer combination unit. super heat has to be measured on each section separately. As a general rule: Freezers run around 6-8 degrees and coolers are 8-10. I have seen freezers go as low as 4 degrees right before they hit set point temp and shut off.

I have found 1 freezer with the identical issue and never found the answer to the issue. I tried everything I know to do and with no success. The customer ended up replacing the freezer. Sorry, but that's all I can offer.

Go to delfild support online

http://www.retrevo.com/support/Delfield-18672PTB-Refrigerators-manual/id/9209ag217/t/2/