Error code · Refrigerator

LG Refrigerator Codes Sd, CI, IU and 12 Others: Self-Check Group

LG refrigerators with an LED or LCD temperature display, in French door, side-by-side and top- or bottom-freezer styles, report Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id and gS as…

Medium · inspection needed

(713) 597-5662

Code: Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gS
Appliance: Refrigerator
Brand: LG
Warranty: 30-day workmanship

What Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gS means

LG refrigerators with an LED or LCD temperature display, in French door, side-by-side and top- or bottom-freezer styles, report Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id and gS as one group. LG gives no separate meaning for each one. The shared message is that the self-diagnostic system found a problem with an internal part, a control circuit or a disconnected wire. Any of them may appear with an Er prefix.

Common causes of Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gS

A disconnected or loose wire plug
An internal part the control cannot reach or read
A control circuit that is not responding
Ice on the cooling plate when the code is d, d1, d2, H1 or H2

✓ One safe check you can try

1. Move food to a cooler, then unplug the refrigerator for about 5 minutes and plug it back in. 2. If the code is d1, d2, d, H1 or H2, ice on the cooling plate can be the reason: unplug it and leave the doors open for at least 12 hours. 3. Plug it back in, close the doors and let it cool down. 4. If the code returns, call us with the exact characters shown.

! Why to stop there

Because the group has no single meaning, the exact characters tell us where to start, and we read them on site.
A reset only helps if the cause was temporary, so a code that returns means a wire, part or circuit needs testing.
We state the price in writing before work, and the repair carries a 30-day workmanship warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Refrigerator codes

ttLG Refrigerator Code tt: Water Tank Not Detected iTLG Refrigerator Code iT: Ice Maker Motor OdLG Refrigerator Code Od: Wi-Fi Module Link OFFMessage "OFF" on LG Refrigerators r2LG Refrigerator Code r2: Lower Compartment Sensor rFLG Refrigerator Code rF: Fresh-Food Fan Motor rSLG Refrigerator Code rS: Upper Sensor Open or Shorted rTLG Refrigerator Code rT: Room Temperature Sensor

Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gSSd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gS questions

Does each of these LG codes have its own meaning?

No. There is one shared explanation for the whole group: a problem with an internal part, control circuit or disconnected wire. We narrow it down by testing.

Can unplugging clear the code?

Sometimes, if the cause was temporary. Unplug the refrigerator for about 5 minutes and reconnect it. If the code comes back, the underlying circuit or wire needs checking and we can do that.

What is different about d1, d2, d, H1 and H2?

For these, ice on the cooling plate can be involved. Unplug the refrigerator and leave the doors open at least 12 hours, with food stored elsewhere, before powering it back on.

Book a visit

Still seeing Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gS?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662