Defrost mode in an LG refrigerator: how to turn it off and what to do if it doesn’t turns off

Instructions:

1. Press and hold the button Freezer (freezer) in flow 5–7 secondsuntil you hear a beep.
2. Without releasing Freezer, simultaneously press the button Fridge (refrigerator compartment) and hold both another 3 seconds.
3. Release the buttons - the display should blink and the inscription Defrost disappear.

For models with touch controls (for example, LG InstaView Door-in-Door) the algorithm is different:

1. Tap the "Settings" icon (⚙️) on the display.
2. Select "Diagnostics" → "System reset".
3. Confirm the action by holding any button for 3 seconds.

Unplug the refrigerator for 1 minute|Check if the door is blocking the limit switch|Try an alternative combination of buttons (see below)|Pay attention to the error codes on the display-->

If the standard combination does not help, try alternative options for specific series:

• 🔹 For LG GC-B247SLUV and similar: press Power Cool + Power Freeze for 10 seconds.
• 🔹 For LG GA-B489YGQZ: hold Ice Plus and Door Alarm at the same time.

⚠️ Attention: After a forced reset, the refrigerator may Do not immediately turn on the cooling -it needs 5-10 minutes for self-diagnosis. Do not panic if the compressor does not start working immediately.

———

Features of disabling defrosting in models with No Frost

Refrigerators LG s system No Frost (for example, series GR-N, GB-B) have double defrosting circuit: separately for the refrigeration and freezer compartments. If the mode is “stuck” in only one compartment, the problem may lie in:

• 🔌 Malfunctions of the defrosting heating element (more often breaks down in the freezer).
• 🌡️ Failure of the defrost sensor (defrost sensor).
• ❄️ Icing of the fan (if a hum is heard, but air does not circulate).

For such models forced shutdown of the mode may not work if the cause is a hardware failure. However, try the following algorithm:

1. Disconnect the refrigerator from the network for 10 minutes (this will reset the control board).
2. Plug it back in and immediately press combination: Door Alarm (3 sec) → Express Freeze (3 sec) → Power Freeze (3 sec).
3. If a code appears on the display Er FF - this confirms a failure in the system No Frost.

If after these steps the refrigerator still does not cool, check:

• 🔊 Is the fan working (put your ear to the back wall - a uniform noise should be heard).
• ❄️ Is there ice on the back wall of the freezer (if so, the heating element does not heat).

———

What to do if the LG refrigerator does not exit the defrost mode

If all reset attempts are unsuccessful, and the refrigerator continues to show Defrost or cools, the reasons may be more serious. Let's look at typical scenarios and solutions:

1. Malfunction of the defrosting heating element

Symptoms: defrost mode turns on every 1–2 hours, ice builds up in the freezer compartment, a relay click is heard, but heating does not occur.

Solution: Required replacing the heating element. In models LG it is located behind the rear panel of the freezer. For a temporary solution, you can manually defrost the refrigerator (turn it off for 12–24 hours), but this will not eliminate the cause.

2. Breakdown of the defrost sensor

Symptoms: defrost mode does not complete, code on the display Er dH or Er FF.

Solution: The sensor is checked with a multimeter (resistance should be ~5–15 kOhm at room temperature). If there is a break or short circuit, replacement is required.

3. Control board failure

Symptoms: refrigerator does not respond to buttons, spontaneously turns on/off modes, display blinks chaotically.

Solution: Try reflash the board (for this you need a service cable and software from LG). If this does not help, just replace it.

For diagnostics, you can use service menu (not available on all models):

1. Unplug the refrigerator.
2. Press and hold the buttons Power Cool + Power Freeze.
3. Turn on the power without releasing the button.
4. After 5 seconds, the service menu will appear (error codes and sensor tests).

⚠️ Attention: If you are not confident in your skills, do not disassemble the refrigerator yourself there is a risk of damaging the freon system or electronics. In models LG with inverter compressors, incorrect actions can lead to blocking the board controls, after which it will require complete replacement.

———

How to prevent frequent failures of the defrost mode

To prevent the refrigerator LG from "freezing" in the mode Defrost, follow these recommendations:

• 🧊 Do not overload the freezer: leave a gap of 2-3 cm between food and walls for air circulation.
• 🚪 Check the door seals: if they are worn out, warm air penetrates inside, causing excessive icing.
• 🔌 Use a voltage stabilizer: power surges disrupt the defrosting program.
• 🧹 Clean the capacitor (grid on the back wall) from dust once every 6 months - overheating leads to failures.

For models with No Frost especially important:

• ❄️ Once a year turn off the refrigerator for 12 hours for complete defrosting (despite the No Frost system, condensation still accumulates).
• 🌡️ Do not set the temperature lower -20°C in the freezer - this will accelerate icing of the evaporator.

———

When to call a technician: signs of serious damage

If after all manipulations the refrigerator LG:

• 🔄 As before cyclically turns on the defrost mode (more often than once a day).
• ❄️ Does not cool one or both chambers, despite the compressor running.
• 🔥 Overheats (case is hot, thermal protection is triggered).
• 📛 Shows error codes Er FF, Er dH, Er CH after reset.

- this means there is a problem hardware, and you can’t do without professional repairs.

Cost of repairs in service centers LG (approximately):

Before the technician’s visit:

1. Disconnect the refrigerator from the power supply.
2. Thaw it naturally (24 hours).
3. Take photos of the error codes (if any) and describe the symptoms.

⚠️ Attention: If the refrigerator is on guarantee do not open the back panel - this will void the warranty. Contact an authorized service center LG.

———

Frequently asked questions about the defrosting mode in LG refrigerators