LG Fridge Clicking Every Few Minutes?

Your LG refrigerator is making a clicking noise every few minutes and your food is slowly getting warmer — and yeah, that's a bad combo that only gets worse the longer you ignore it.

Cartoon scene of a frustrated person standing in their kitchen in front of an op

What's Actually Going On

That rhythmic clicking you're hearing isn't your fridge being dramatic. It's the sound of your compressor trying to start, failing, and giving up — over and over again. The part responsible for kicking the compressor on is called the compressor start relay, and when it dies, the compressor never gets enough juice to actually run. No compressor, no refrigerant circulation, no cooling. It's that simple.

On LG refrigerators, this is one of the most common failure points we see come through the Piedmont shop. The relay is a small component — about the size of a big eraser — that plugs directly onto the side of the compressor. It gives the compressor motor the electrical "push" it needs to start up. When the relay fails internally (usually a burned-out resistor inside), it just clicks and cuts out. Your fridge sounds busy but is doing absolutely nothing useful.

The good news? This is one of the most DIY-friendly refrigerator repairs out there. You're not pulling the sealed system apart, you're not dealing with refrigerant, and you don't need to call an appliance tech and pay $200+ just for them to show up. The part you need is the 6750C-0005P compressor start relay, and it's a direct-fit replacement for a huge range of LG refrigerator models.

Cartoon close-up scene of YAP Dude crouching down at the rear of an LG refrigera

The Fix

Here's how to confirm it's the relay and swap it out:

Step 1 — Do the rattle test first. Pull the failed relay off the compressor (it just pulls straight off the terminal). Give it a shake next to your ear. If you hear something rattling around inside it, that relay is toast. The burned resistor is loose in there. Confirmed bad.

Step 2 — Grab the right part. The replacement part number is 6750C-0005P. We stock this at the YAP shop in Piedmont. Don't guess on a generic — get the right OEM-spec relay so you're not doing this again in six months.

Step 3 — Access the compressor.

Unplug the refrigerator. Non-negotiable.
Pull the fridge away from the wall and remove the lower rear access panel (usually a few screws).
The compressor is the large black dome-shaped component. The relay plugs into the side of it.

Step 4 — Swap the relay.

Pull the old 6750C-0005P relay straight off the compressor terminal.
Note the orientation — there's usually a marking indicating which side is "up."
Push the new relay firmly onto the terminal until it seats.
Some models have a wire harness clip attached to the relay — unplug it from the old one and reconnect it to the new one.

Step 5 — Button it back up and test. Replace the access panel, plug the fridge back in, and listen. You should hear the compressor hum to life within a minute or two — a steady hum, not that sad clicking anymore. Give it a couple hours to come back down to temp.

Cartoon scene of YAP Dude kneeling behind an LG refrigerator with the rear acces

When to Call YAP vs. DIY

DIY this one — if the rattle test confirms your relay is bad and your fridge is otherwise in good shape, this is a 20-minute repair with basic tools. Totally worth doing yourself.

Call us — if you've already swapped the relay and the clicking is still happening, the compressor itself may be failing, which is a different (and more expensive) conversation. Text or call us at 405-876-8100 and we'll help you figure out your next move before you throw money at it.

The 6750C-0005P start relay is in stock right now. Swing by the Piedmont shop, or text 405-876-8100 and we'll have it ready for you.