[EspressoKing]

Migali Sandwich Prep table has begun to ice up and isn't cooling properly. Pulled the shrouds from the coils, and found that they had iced over. Defrosted the unit by leaving it off overnight, cleaned and dried it, and restored it to service. It worked fine for the day, maintining temperature in normal operational range, but overnight it iced up again.

Unit's doors and hood were kept closed as much as possible during operations, and were fully closed (and all pans in place) at end of day yesterday (5pm); still, unit was above 50 deg and fins iced over at 7am this morning.

Temperatures (no A/C in the restaurant) were in the low 80s the last few days, but had dropped to about 70 overnight last night.

Unit was last serviced (new compressor installed) in February.

Suggestions?

[PS Staff - Sheila]

I am not really up on commercial refrigeration units but it sound like the defrosting circuit is not working.

This would cause the unit to ice up and it would not be able to cool as it should.

[Comerwebs]

Im not a tech, but I do have 15 years experience managing full service restaurants. Sounds like its not going into defrost. The defrost controls should be next to the compressor. Place a mark (black magic marker) on the timer where it points to at the time. Now come back in 30 min. If it hasnt moved the timer isn't working properly. Try wiggling it, sometimes they just get stuck. If that doesnt work at least its just a timer and they are fairly cheap. If there is no timer then you may not have one. I know some commercial equipment does not have built in defrost timers as they are designed to be emptied nightly and turned off.