Dacor Column Refrigeration E1 Error: Cabinet sensor failure
This dacor column refrigerator error code e1 guide explains what this fault means for your Dacor appliance and how to respond safely. What Error Code E1 Means Error code E1 on Dacor DRR24 and DRR30 column refrigerators signals a cabinet temperature sensor failure. Unlike the same code on French Door (DRF36/DRF42) models, this fault refers […]
15%
DIY Fixable
From $275
Typical Repair Cost
60-120 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. An active E1 on a column refrigerator means temperature regulation has been lost. Move perishables to another refrigerator until the fault is resolved.
Can I reset the code?
No. A power-cycle may clear a transient E1 but the code returns if the thermistor, wiring, or board fault is not corrected.
When to stop immediately?
Stop if you notice: Stop if E1 returns within one compressor cycle of the power-cycle reset., Stop if you find heat-damaged wiring near the sensor or board..
Symptoms You May Notice
Cabinet temperature control erratic or absent
The DRR24/DRR30 column refrigerator cannot hold a stable temperature — contents may freeze or warm unpredictably as the board lacks valid sensor data to drive the compressor correctly.
E1 code on the column refrigerator display
The control panel displays E1 with an audible alarm on the DRR24 or DRR30 column refrigerator, distinguishing this from the same code on French Door (DRF) models.
Compressor runs without cycling off
The control board commands continuous compressor operation in the absence of valid temperature data, causing excess energy use and potential compressor damage.
Fan runs at fixed speed rather than modulating
Without sensor feedback the evaporator fan locks into a fixed-speed mode rather than varying with demand, reducing efficiency.
Possible Causes
Failed column refrigerator thermistor
The NTC sensor clipped to the evaporator or cabinet wall has failed open or shorted — a different part number from the DRF36/DRF42 thermistor.
DIY PossibleLoose or corroded connector at sensor or board
The wiring connection between the thermistor and the DRR-series control board has worked loose or corroded.
DIY PossibleDRR-series main control board failure
The column refrigerator PCB sensor input circuit has failed even though the thermistor is good, requiring board replacement.
Requires ProfessionalSafe Checks You Can Do
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1
Power-cycle the column refrigerator
Unplug the DRR24 or DRR30 for 60 seconds, then restore power. If E1 clears and does not return within 30 minutes during normal compressor cycling, the fault was transient.
Column refrigerators installed in a cabinetry surround may require reaching behind the unit for the outlet — use the breaker instead if easier.
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2
Re-seat the cabinet thermistor connector
Remove the interior rear panel of the DRR24/DRR30 column refrigerator (2–4 screws). Locate the thermistor connector and firmly unplug and re-seat it. Inspect for corrosion or bent pins.
The column refrigerator thermistor is typically clipped to the evaporator coil housing — look for a small probe with two wire leads.
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3
Measure thermistor resistance
With a multimeter set to 20kΩ range, measure resistance across the thermistor. At 37°F (3°C) — typical column fridge set point — expect approximately 14–16kΩ. OL or 0Ω indicates failure.
Use the DRR model number to source the correct replacement thermistor — DRR24/DRR30 use a different part than DRF French Door models.
Tools required
When to Call a Professional
Contact a qualified technician if:
- Thermistor resistance is within spec but E1 persists on the DRR-series — control board replacement required.
- Wiring harness shows corrosion or damage that requires professional splice repair.
- Unit is installed in a custom surround making component access require panel removal — professional scope.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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