Written by
Marcus Hale Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeE4
ApplianceRefrigerator
Quick answer
E4 on a DCS RF24D refrigerated drawer is a display thermistor (sensor A) out-of-range fault.
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
Display thermistor (sensor A) fault, out-of-range, on RF24D refrigerated drawers.
What E4 reports
On DCS RF24D refrigerated drawers, E4 is a fault on the display thermistor, sensor A, out of range. The code flashes while the audible alarm sounds six times a minute.
What an owner can do
Disconnect the unit from power and reconnect it; this is the only way codes are reset. A second appearance of E4 is a matter for a technician, who checks the thermistor wires for a break or short and the thermistor.
Call (310) 616-5236 to have a DCS refrigerated drawer looked at in Los Angeles. Refrigerator repair is explained online. Share the code, the model and that you reconnected power.
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.
