Written by
Marcus Hale Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeCode 43
ApplianceRefrigerator
Quick answer
Code 43 on DCS ActiveSmart RS/RF refrigerators is an ice maker fill tube issue, signalled by alarm beeps or flashing LEDs.
Model compatibility: DCS reuses codes across series and model years, so Code 43 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
Ice maker fill tube issue, shown as a count of alarm beeps or a binary pattern of flashing LEDs.
Code 43 on a DCS refrigerator points to an ice maker fill tube issue. RS/RF series refrigerators, DCS ActiveSmart indoor integrated models, are the ones that use it.
Code 43 at a glance
This code is not displayed as text. Listen for counted alarm beeps and watch for a binary pattern of flashing LEDs.
Owner steps
Muting is done with the alarm mute button on an ActiveSmart unit. Fixing the cause is a job for a service technician.
DCS refrigerator service in Los Angeles is available at (310) 616-5236. Have the code, the model number and anything you already tried ready, and see our refrigerator repair page.
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.
