What Runs Constantly Compressor means on your Dacor freezer (dacor freezer compressor never cycles off)
A freezer showing this is showing a symptom, not a code: Dacor’s manual documents it in plain language. A freezer compressor running continuously is compensating for something, and because this column has no shared compressor to lean on, checking whether temperature is actually holding is the fastest way to judge urgency.

Symptoms
The point of the list below is to stop you replacing the wrong part of a freezer, because Runs Constantly Compressor imitates other Dacor freezer problems closely.
- The compressor hum continues with no quiet periods over several hours.
- Interior temperature may still read normally, or may be drifting warmer.
- The area around the compressor feels unusually warm to the touch.
- The condition may have started after a large addition of unfrozen food.
Common causes
Any of the following can leave a Dacor freezer in this state, and telling them apart on the freezer decides whether a part is needed at all.
- Recent large addition of unfrozen food — a temporary, self-resolving cause as the compressor works to freeze new items.
- Dirty condenser coils — restricted heat rejection forces longer run times.
- Door not sealing fully — continuous infiltration keeps demanding cooling the compressor cannot fully satisfy.
- Low refrigerant charge — a slow leak reduces cooling efficiency for the amount of compressor run time.
Troubleshooting steps you can try
Before booking a visit for Runs Constantly Compressor, work through these on your freezer — a good share of these freezer calls resolve right here.
- Give the unit 24 hours after any large addition of unfrozen food before treating this as abnormal.
- Clean the condenser coils if this has not been done recently.
- Check door gaskets for gaps at multiple points.
- Confirm interior temperature is actually holding despite the constant running.
- Book a technician if temperature is not holding or coils and door seal check out fine.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the compressor, condenser coils, door gasket, and refrigerant charge. The right part for your Dacor freezer is matched from its model and serial number, and confirming which component failed keeps the freezer repair to what it actually needs.
When to call a technician
A technician checks refrigerant charge, since a slow leak is invisible without pressure testing and matters more here with no backup cooling unit. At Medium severity the freezer is not in danger, though a Runs Constantly Compressor that keeps coming back on a freezer is telling you something. Nobody here works for Dacor; we are an independent service, and the work we do on your freezer is warranted for 30 days.
Related help and Dacor resources
When the Runs Constantly Compressor condition survives everything above, the freezer needs a technician: book freezer repair, or browse our repair guides first. The original freezer specification lives at www.dacor.com.