Home Fault Codes

LG Refrigerator Error Code Er tt: Meaning and Fix

Er tt
How Er tt appears on a LG refrigerator display.
Water tank for an LG refrigerator, a part commonly involved in the Er tt code
Sears PartsDirect product image (LG OEM part MCK41996402)

Also shown as: E tt

Reading the refrigerator display

On a refrigerator the code shows on the control panel or dispenser display. Some models flash a letter or alternate two characters; hold the code in view and note both. LG codes are short letter pairs; a capital O differs from a zero.

LG appliances show short alphabetic codes (OE, IE, UE on washers, Er plus letters on refrigerators) and, on ThinQ models, a Smart Diagnosis option. LG also builds many Kenmore Elite units. The codes apply to model numbers such as LDF7774ST, LDT5678SS and DLEX3900B; check the label on your unit to confirm yours.

What causes Er tt

How to fix it

  1. Remove and reinsert the water tank firmly.
  2. Check for debris at the seat.
  3. Unplug the refrigerator for 60 seconds, then plug it straight into a wall outlet (no power strip) and give it up to 5 minutes to restart.
  4. Request service if tt persists.

Parts you may need

PartPart no.Buy
Water tankMCK41996402Find part

Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.

Questions

Is it a leak?

No.

DIY?

Often.

Urgent?

Low.

Other LG refrigerator codes

Evaporator fan motor for an LG refrigerator, a part commonly involved in the Er FF codeEr FFFreezer fan errorEvaporator fan motor for an LG refrigerator, a part commonly involved in the Er rF codeEr rFRefrigerator fan errorDisplay board for an LG refrigerator, a part commonly involved in the Er CO codeEr COCommunication errorDefrost heater for an LG refrigerator, a part commonly involved in the Er dH codeEr dHDefrost failureIce maker fan motor for an LG refrigerator, a part commonly involved in the Er IF codeEr IFIce maker fan errorCondenser fan motor for an LG refrigerator, a part commonly involved in the Er CF codeEr CFCondenser fan error

Sources

Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.

Applies to models including LRMVS3006S, LFXS26973S, LMXS28626S, LRSXS2706S, LTCS24223S.