Written by
Theo Garrison Appliance Care EditorPublished October 27, 2026
VERIFIED
Error codeE4
ApplianceRefrigerator
Reading E4
On a DCS RF24D drawer, sensor A is the display thermistor, and E4 tells you its reading is out of range. While the code blinks, an alarm beeps six times each minute.
What to try, in order
Take the drawer off power.
Put power back. This cycle is the only recognised reset.
If E4 shows once again, have a technician check the thermistor wires for an open or short, plus the thermistor.
A drawer in San Francisco or the Bay Area that keeps flashing E4 can be reported at (415) 969-2271; DCS refrigerator repair has the background. Prepare the model number and mention the code.
Model compatibility: DCS reuses codes across series and model years, so E4 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
E4 is an out-of-range fault on the display thermistor, sensor A, of DCS RF24D refrigerated drawers.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your DCS appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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