Model library · LG Refrigerator

LFX31945ST

LG LFX31945ST Door-in-Door Repair

Most common issues on this model

Door-in-Door gasket and latch
Evaporator fan and air path
Defrost heater and sensor
Ice chute and dispenser water line
Door alignment and hinge level

The LFX31945ST is an older LG 3-door French door refrigerator with a Door-in-Door compartment. It has frost-free cooling and a door-ajar alarm. The inner door gives quick access to frequently used items and is a second place where warm air can enter.

We check the inner door gasket and latch whenever the compartment is warm, then the evaporator fan and air path for the main cabinet. A freezer with frost sends us to the defrost heater and sensor. If the alarm sounds with the doors closed, we look at door alignment, because the extra weight of the inner door can pull the main door out of line.

Since this is a legacy model, we read the model and serial from the label and confirm each part before ordering. We give a written price and availability first, and our repair carries a 30-day workmanship warranty.

Key features

3-door Door-in-Door refrigerator
French 3-door
Frost-free cooling
Door-ajar alarm

→Codes

Error codes this model can show

rFLG Refrigerator Code rF: Fresh-Food Fan Motor rSLG Refrigerator Code rS: Upper Sensor Open or Shorted rTLG Refrigerator Code rT: Room Temperature Sensor SbLG Refrigerator Code Sb: Sabbath Mode On Sd, CI, IU, d1, d2, d, H1, H2, US, LS, E1, E2, r, Id, gSLG Refrigerator Codes Sd, CI, IU and 12 Others: Self-Check Group SSLG Refrigerator Code SS: Pantry or Water Tank Sensor ttLG Refrigerator Code tt: Water Tank Not Detected iTLG Refrigerator Code iT: Ice Maker Motor

LFX31945STLFX31945ST questions

Why is the Door-in-Door compartment on my LFX31945ST warm?

The inner gasket or latch may not seal. We check both and the door alignment before suggesting a part. A bottle that sticks out of the inner shelf can keep the inner door from sealing, so we look at that first.

Can the extra door weight cause trouble?

Over time it can lower the door at the hinge. We check the hinge level and the gap, and adjust where we can. If the main door sags, we level the cabinet first and check the hinge for wear before we suggest a part.

What causes a door-ajar alarm with the door closed?

A worn gasket, a misaligned door or a failing door switch. We test them in that order. A bin or a shelf that sticks out can hold the door open, so we check the interior before we test the switch.

Book a visit

Book repair for your LFX31945ST

Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

(713) 597-5662