Written by
Marcus Hale Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeCode 22
ApplianceRefrigerator
Quick answer
Code 22 on DCS ActiveSmart refrigerators: water tank sensor issue, signalled by alarm beeps or flashing LEDs. Press the alarm mute button, then arrange service.
Model compatibility: DCS reuses codes across series and model years, so Code 22 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
Code 22 is a water tank sensor issue signalled by alarm beeps or a binary pattern of flashing LEDs, not text.
Understanding code 22
If the refrigerator is beeping or its LEDs are flashing in a binary pattern, note which code it is giving. Code 22 is for a water tank sensor issue, communicated by sound or light rather than text.
Your next step
Press the mute button for the alarm if the sound is a nuisance; this is the ActiveSmart way to silence it. A service technician is then required.
The ActiveSmart indoor integrated DCS refrigerators of the RS/RF series are the ones this describes.
Related codes
Check these related codes if the pattern is not quite what you counted:
For DCS refrigerator service in Los Angeles, call (310) 616-5236. This code needs a technician, so have the code, the model number and what you tried ready. More on refrigerator repair is available here.
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.
