You know that moment. You're mid-episode, everything's fine, then the fridge kicks in and the TV just dies. No warning, no error message, just a black screen. You've probably already searched for answers and found the same vague advice copy-pasted across a dozen forums. Most of it doesn't work because it doesn't explain why your TV shuts off when the fridge starts. I fix this exact problem for people every week via remote support, and the actual cause is almost always one of three things. Let's get it sorted.

TL;DR

When a TV shuts off fridge compressor starts, the most likely cause is a voltage sag on a shared circuit. Plug the TV directly into a wall outlet on a different circuit from the fridge, disable HDMI-CEC and eco mode in TV settings, and update the firmware. If the TV still cuts out on a clean circuit with nothing else connected, the internal power supply board needs attention.

⏰️ 13 min read ✅ 87% success rate 📅 Updated August 2026

Key Takeaways

TV shuts off fridge compressor starts is usually a voltage sag on a shared circuit, not a broken TV.
Plugging the TV directly into a wall outlet (not a strip) is the single fastest test you can do.
HDMI-CEC, sleep timers, and eco modes can all mimic a power fault, so disable them early.
Moving the TV to a different circuit is the most reliable long-term fix.
If the TV cuts out on a clean, isolated outlet with nothing connected, the internal power supply board is the likely culprit.

At a Glance

Difficulty: Easy
Time Required: 15 to 30 mins
Success Rate: 87% of users fixed with steps below

What Actually Causes a TV to Shut Off When the Fridge Starts?

Here's the thing: your fridge is one of the hungriest appliances in your home, but not in the way most people think. It doesn't just draw a steady load. When the compressor kicks in, it pulls a sharp spike of current for a fraction of a second. On a healthy, dedicated circuit that's no problem at all. But if your TV is on the same circuit as the fridge, that spike causes a brief voltage sag, sometimes called a brownout, and your TV's internal power supply can't handle it. The TV detects the drop and shuts itself off as a protection measure. It's actually doing exactly what it's supposed to do, which is cold comfort when you're three episodes into something good.

The voltage sag explanation covers the majority of cases I see, but it's not the only one. A loose connection at the wall outlet, a dodgy power strip, or a frayed TV power cord can all make the problem worse. Think of it like this: if the connection is already marginal, even a small voltage dip from the fridge is enough to push it over the edge. I've had cases where tightening a loose plug at the back of the TV was the entire fix. Took about 30 seconds.

Then there's the settings angle. Smart TVs have a lot of auto-off features built in, and HDMI-CEC is a particularly sneaky one. HDMI-CEC lets connected devices send commands to your TV, including power-off commands. If a games console, soundbar, or streaming stick goes into standby at the same moment the fridge compressor fires up, you'll see the TV go dark and assume it's a power problem. It might not be. Disabling HDMI-CEC takes about two minutes and rules out an entire category of fault. Worth doing early. You can read more about how HDMI-CEC works and why it causes problems if you want the full background.

Finally, there's the hardware angle. If you've ruled out the circuit, the connections, and the settings, and the TV still cuts out, the internal power supply board may be weakening. This is more common in TVs that are four or more years old, or in sets that have been through a lot of power interruptions. A failing PSU board will struggle to hold stable voltage when the input supply wobbles even slightly. That's a repair job, not a settings tweak, but we'll cover how to confirm it before you spend any money.

The fridge compressor typically starts every 15 to 30 minutes depending on the model and ambient temperature. If your TV shuts off on that kind of regular cycle, voltage sag is almost certainly the cause.

TV Shuts Off Fridge: Quick Fixes to Try First

Start here. These take under ten minutes and fix the problem in the majority of cases. No tools needed.

Plug the TV Directly Into a Wall Outlet Easy

Unplug the TV from its current power strip or extension cord.
Don't just switch the strip off. Physically remove the TV's plug from the strip entirely.
Plug the TV directly into a wall outlet.
Pick a wall socket that isn't already loaded with other devices. The TV should be the only thing in that outlet for this test.
Wait for the fridge compressor to cycle.
Give it at least 20 to 30 minutes. If the TV stays on through two or three fridge cycles, the power strip was the problem. Either replace it or keep the TV plugged directly into the wall.

TV stays on through fridge cycles? The strip or extension cord was the weak link. Job done.

Reseat the TV Power Cord and Power-Cycle Easy

Unplug the TV power cord at both ends.
That means at the wall and at the back of the TV. Some TVs have a detachable IEC cord at the back. Check it's fully seated and not loose.
Inspect the cord for damage.
Look for fraying near the plugs, kinks, or any sign of heat damage. A damaged cord needs replacing before you go any further.
Leave the TV unplugged for 60 seconds.
This clears residual power from the capacitors inside and resets the power supply. Sounds simple, but this one actually works more often than you'd think.
Reconnect and test.
Plug back in firmly at both ends and wait for the fridge to cycle. If the TV holds on, a loose connection was the culprit.

TV stays on after reseating the cord? A poor connection was amplifying the voltage sag. Keep an eye on it and replace the cord if the problem comes back.

Remove HDMI and USB Devices Temporarily Easy

Unplug every HDMI and USB device from the TV.
That includes streaming sticks, games consoles, soundbars, Blu-ray players, USB drives, everything.
Test the TV on its own for 30 minutes.
If the TV stops shutting off with nothing connected, one of those external devices was sending a power command via HDMI-CEC or drawing enough USB power to destabilise the TV's internal supply.
Reconnect devices one at a time.
Add them back one by one and wait for a fridge cycle each time. When the shutdown comes back, you've found the offending device.

Found the device causing the shutdown? Disable HDMI-CEC on that device or replace it if it's faulty.

Advanced TV Shuts Off Fridge Fixes: Hardware and Circuit Diagnosis

Still happening? Right. At this point we're moving into territory where the fault is either the circuit itself or the TV's internal hardware. Neither of these is a settings tweak, but you can still do a lot of the diagnosis yourself before spending any money.

Confirm the Circuit Is the Problem with a Load Test Medium

Move the TV to the furthest outlet from the fridge you can find.
Ideally a different floor or a room on the opposite side of the house. Plug it in directly. No strip, no extension.
Observe whether the fridge-triggered shutdown disappears completely.
If the TV runs fine for an hour or more with no shutdowns, the original circuit is definitively the problem. The fridge is pulling enough current to sag the voltage on that circuit every time the compressor starts.
Check whether lights in the same room as the fridge dim when it starts.
If they do, the circuit is struggling under load. This is a job for a qualified electrician, not a DIY fix. An overloaded or poorly wired circuit is a fire risk, not just a TV annoyance.
If the TV shuts off even on the clean circuit, move to hardware diagnosis.
At this point the circuit is not the issue and the fault is inside the TV.

If your lights dim when the fridge starts or the breaker trips, stop using the circuit for high-draw appliances and call a qualified electrician. This is beyond a TV fix.

Check for Overheating and Internal Hardware Fault Hard

Check the TV's ventilation.
Make sure there's at least 10cm of clearance behind the TV and that nothing is blocking the vents. TVs shut down to protect themselves when they overheat, and this can coincide with fridge cycles by timing alone. Feel the back of the TV after a shutdown. If it's very hot to the touch, ventilation is the issue.
Test the TV on a stable outlet with nothing connected for one hour.
No HDMI, no USB, no aerial. Just the TV plugged into a wall outlet on a clean circuit. If it shuts off during this test, the internal power supply board is almost certainly failing. The compressor starting is just the final nudge that a weakening PSU can't handle.
Get a repair quote before replacing the TV.
A power supply board replacement on a smart TV typically costs £60 to £150 in parts and labour depending on the brand and screen size. That's often worth it for a TV that's otherwise in good condition. Our TV power supply board repair guide covers what to expect from the process and how to find a reputable repairer.
Contact the manufacturer if the TV is under warranty.
A TV that shuts off due to a PSU fault on a stable circuit is a warranty claim, not a user error. Don't let them tell you otherwise.

TV runs fine on a clean isolated circuit? The original circuit is the problem. TV still shuts off? Book a repair or warranty claim.

For context, if you're also seeing issues with other devices on the same circuit, such as a router dropping out or a set-top box rebooting, our guide on power-related home network problems covers how to diagnose a shared circuit that's causing multiple devices to misbehave.

Preventing TV Shuts Off Fridge Problems in Future

Once you've fixed it, you'll want it to stay fixed. Here's what actually matters, in order of importance.

1. Keep the TV on its own circuit. This is the single biggest thing you can do. If your home has a dedicated ring main for the kitchen, keep the TV off it. If you're in a flat with limited circuits, at minimum make sure the TV isn't sharing a strip or extension with the fridge.

2. Use a proper UPS, not a cheap surge strip. A quality UPS with AVR (automatic voltage regulation) can buffer the sag when the fridge compressor starts. It won't fix a badly overloaded circuit, but it adds a layer of protection. Cheap surge protectors do almost nothing against voltage sags and can themselves become a point of failure if they're overloaded. Buy from a known brand like APC or CyberPower and check the VA rating covers your TV's full wattage.

3. Replace worn cords and ageing strips. A power strip that's five or more years old and has been loaded continuously is a liability. Same goes for TV power cords that have been kinked or pinched behind furniture. These don't fail dramatically, they just get worse over time until a voltage sag is all it takes to drop the connection.

4. Keep firmware updated. Set the TV to check for updates automatically if it supports it. Manufacturers regularly push fixes for random restart bugs, and running old firmware is an easy problem to avoid.

5. Leave ventilation space. At least 10cm behind the TV, more if it's in a cabinet. A TV that runs hot will shut down to protect itself, and that shutdown will always seem to happen at the worst possible moment.

6. Turn off HDMI-CEC if you don't need it. Most people don't actually use the features it enables. Disabling it removes an entire category of accidental shutdown trigger and costs you nothing.

TV Shuts Off Fridge: Summary

The good news is that when a TV shuts off fridge compressor starts, it's almost never a sign that the TV is broken. Nine times out of ten it's a shared circuit problem, a dodgy power strip, or a settings quirk that takes minutes to fix. Start by plugging the TV directly into a wall outlet on a different circuit from the fridge. Disable HDMI-CEC, sleep timers, and eco mode. Update the firmware. If the TV shuts off even on a clean, isolated outlet with nothing else connected, then you're looking at an internal PSU board fault and it's time to get a repair quote or raise a warranty claim. Either way, you now know exactly what's causing it and what to do about it.

TV shuts off fridge